Patent Publication Number: US-9905211-B1

Title: Guitar effector loop and multi-type guitar effector using the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This U.S. non-provisional patent application claims priority under 35 U.S.C. § 119 of Korean Patent Application No. 10-2016-0124685, filed on Sep. 28, 2016, the entire contents of which are hereby incorporated by reference. 
     BACKGROUND 
     The present invention relates to a musical instrument, and more particularly, to an effector of a guitar. 
     Various kinds of effectors are used to distort a tone of an electronic guitar. 
     Such effectors may be classified into an analogue type and a digital type. The latter has an advantage in that use thereof is convenient but has a disadvantage in that a sound quality thereof is low. Thus, in recent years, an effector using an analogue scheme tends to be mainly used. 
     The effector using an analogue scheme, which refers to a compactor, includes: an input unit  3  that receives an input signal from a guitar a or another guitar effector; an output unit  4  that transmits an output signal to an amplifier b or another guitar effector; and a foot switch  5  that controls a turn-on/off state of the corresponding compactor (see  FIGS. 1 to 10 ). 
     Since a player adjusts a turn-on/off state thereof during performance through the foot switch  5 , the effector refers to a guitar pedal. 
     For example, in case of backing for expressing rock music or solo performance, effectors such as an overdrive effector and a distortion effector are required (see  FIGS. 1 and 2 ). In case of arpeggios or strokes, to obtain a clean tone, effectors such as a reverb effector, a delay effector and a chorus effector are required (see  FIGS. 3 to 5 ). When a special effect is required, effectors such as a phase effector, a wah effector and an octave effector are required (see  FIGS. 6 to 8 ), and in other cases, a compressor effector, an equalizer effector, or the like may be used (see  FIGS. 9 and 10 ). 
     When playing a guitar, a player generally uses a plurality of tones in the same tune, and a combination of a plurality of compactors is required to obtain the respective tones. 
     For this, the plurality of compactors are previously connected to each other, and each of the compactors is turned on or off by the foot switch during performance to realize various combinations, thereby obtaining a desired tone (since the player does not use his or her hands due to the guitar playing). 
     When some of the compactors connected to each other are turned on, and the others of the compactors are turned off, the compactors that are turned off are bypassed, and only the compactors that are turned on are combined with each other to obtain a distorted tone. 
     Since it is difficult to manipulate the foot switches of the plurality of compactors during the performance so as to obtain a necessary tone, a guitar effector loop (a programmable loop)  10  in which a plurality of switches  11 ,  12 ,  13 , and  14  are installed to allow a user to set a separate combination of the compactors for respective switches has been developed (see  FIG. 11 ). 
     Since the plurality of switches  11 ,  12 ,  13 , and  14  are controlled to alternatively act, when one switch is turned on (pushed), other switches are automatically turned off. 
     For example, a case in which the Nos. 1, 2, and 3 effectors are set for the A switch  11 , the Nos. 1, 2, and 4 effectors are set for the B switch  12 , the Nos. 3 and 4 effectors are set for the C switch  13 , and the No. 4 effector is set for the D switch  14 , will be described as follows (see  FIG. 12 ). 
     When the A switch  11  is turned on, the Nos. 1, 2, and 3 effectors are turned on, and the No. 4 effector is automatically turned off. 
     When the B switch  12  is turned on, the Nos. 1, 2, and 4 effectors are turned on, and the No. 3 effector is automatically turned off. 
     When the C switch  13  is turned on, the Nos. 3 and 4 effectors are turned on, and the Nos. 1 and 2 effectors are automatically turned off. 
     When the D switch  14  is turned on, the No. 4 effector is turned on, and the Nos. 1, 2, and 3 effectors are automatically turned off. 
     A unique number is set for each of the combinations and stored in a bank so that the unique numbers are selected and used as needed (see  FIG. 13 ). 
     The above-described related art has the following limitations. 
     The types of guitar effectors are very various as described above, and thus, there are many kinds of combinations of the guitar effectors. As a result, in the guitar effector loop according to the related art, since the combinations of the guitar effectors are obtained by only the about four selected switches that are previously installed, the limitation is that the choice of combination is too narrow. 
     Although various combinations of guitar effectors are stored in the bank, since it is necessary to designate the unique number by hands so as to select each of the combinations, it is practically impossible to change the combination during the performance. 
     SUMMARY 
     The present invention has been made to solve the above limitations, and thus, an object of the present invention is to provide a guitar effector loop that is capable of increasing the number of combinations of guitar effectors without increasing the number of switches and a multi-type guitar effector using the same. 
     An embodiment of the present invention provides a guitar effector loop including foot switches ( 600 ) which are connected to a guitar (a), an amplifier (b), and a plurality of compactors ( 500 ) and set to turn on/off one or more compactors ( 500 ) of the plurality of compactors ( 500 ) according to setting of a control unit of a body, wherein the plurality of foot switches ( 600 ) are installed in the body so that various combinations of the plurality of compactors ( 500 ) are obtained, wherein the plurality of compactors ( 500 ) include a No. 1 compactor ( 501 ), a No. 2 compactor ( 502 ), and a No. 3 compactor ( 503 ), the plurality of foot switches ( 600 ) include a plurality of alternative switches ( 610 ) including a No. 1 alternative switch ( 611 ) and a No. 2 alternative switch ( 612 ) and an independent switch ( 620 ), the No. 1 alternative switch ( 611 ) is set to the plurality of compactors ( 500 ), the No. 2 alternative switch ( 612 ) is set to the plurality of compactors ( 500 ) so that combinations different from the combinations of the plurality of compactors ( 500 ), which are set by the No. 1 alternative switch ( 611 ), are obtained, the independent switch ( 620 ) is set to the No. 3 compactor ( 503 ), in a state in which the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) are turned off, or the No. 2 alternative switch ( 612 ) is turned on, when the No. 1 alternative switch ( 611 ) is turned on, the compactor ( 500 ) set by the No. 1 alternative switch ( 611 ) is turned on, and the compactor ( 504 ) set by only the No. 2 alternative switch ( 612 ) is turned off, in a state in which the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) are turned off, or the No. 1 alternative switch ( 611 ) is turned on, when the No. 2 alternative switch ( 612 ) is turned on, the compactor ( 500 ) set by the No. 2 alternative switch ( 612 ) is turned on, and the compactor ( 500 ) set by only the No. 1 alternative switch ( 611 ) is turned off, and In a state in which the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) are turned off, the No. 1 alternative switch ( 611 ) is turned on, or the No. 2 alternative switch ( 612 ) is turned on, when the No. 1 independent switch ( 621 ) is turned on, the No. 3 compactor ( 503 ) is turned on, and also, each of other compactors ( 500 ) of the plurality of compactors ( 500 ) is maintained in its original state. 
     When the independent switch ( 620 ) is turned off in the turn-on state of the independent switch ( 620 ), the No. 3 compactor ( 503 ) may be turned off, and each of other compactors ( 501 ,  502 ) of the plurality of compactors ( 500 ) may be maintained in its original state. 
     In case in which the No. 2 alternative switch ( 612 ) is not set to the No. 3 compactor ( 503 ), when the No. 2 alternative switch ( 612 ) is turned on in the turn-on state of the independent switch ( 620 ) and in the turn-off state of the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) or in the turn-on state of the No. 1 alternative switch ( 611 ), the No. 3 compactor ( 503 ) may be turned off. 
     The No. 1 alternative switch ( 611 ) may be set to the plurality of compactors ( 500 ) including the No. 1 compactor ( 501 ), and when the No. 1 alternative switch ( 611 ) is turned off in the turn-on state of the No. 1 alternative switch ( 611 ), only the No. 1 compactor ( 501 ) may be turned off, and the other compactor ( 500 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state. 
     When the No. 1 alternative switch ( 611 ) is turned on in the turn-off state of the No. 1 alternative switch ( 611 ), only the No. 1 compactor ( 501 ) may be turned on, and the other compactor ( 500 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state. 
     The No. 1 alternative switch ( 611 ) may be set to the plurality of compactors ( 500 ) not including the No. 1 compactor ( 501 ), and when the No. 1 alternative switch ( 611 ) is turned off in the turn-on state of the No. 1 alternative switch ( 611 ), the compactor ( 500 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state, and the No. 1 compactor ( 501 ) may be turned on. 
     When the No. 1 alternative switch ( 611 ) is turned on in the turn-off state of the No. 1 alternative switch ( 611 ), only the No. 1 compactor ( 501 ) may be turned off, and the other compactor ( 500 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state. 
     In case in which the No. 2 alternative switch ( 612 ) is not set to the No. 3 compactor ( 503 ), when the No. 2 alternative switch ( 612 ) is turned off in the turn-on state of the No. 2 alternative switch ( 612 ) and the independent switch ( 620 ), only the No. 3 compactor ( 503 ) may be turned off, and the other compactor ( 500 ) set by the No. 2 alternative switch ( 612 ) may be maintained in the turn-on. 
     In an embodiment of the inventive concept, a multi-type guitar effector, in which a plurality of guitar effector modules ( 100 ) are installed, wherein each of the guitar effector modules ( 100 ) includes a component circuit board ( 110 ) on which a circuit for an analogue type guitar effector is disposed; a module case ( 130 ) on which a variable resistor driving unit ( 131 ) for adjusting a sound by the circuit is mounted and in which the component circuit board ( 110 ) is installed; and a circuit connection unit ( 120 ) in which a circuit unit part ( 121 ), a circuit output part ( 122 ), and a circuit power supply part ( 123 ) with respect to the circuit are disposed and which is electrically connected to the component circuit board ( 110 ) and is installed outside the module case ( 130 ), includes: a body having a module mounting space ( 211 ) for mounting the plurality of guitar effector modules ( 100 ) therein; a plurality of opened parts ( 212 ) defined in a top surface of the body ( 210 ) having a shape corresponding to one or a plurality of module cases ( 130 ) so that the plurality of module cases ( 130 ) are installed; a plurality of body connection units ( 220 ) in which body input parts ( 221 ), body output parts ( 222 ), and body power supply parts ( 223 ) are disposed to be connected to the circuit input parts ( 121 ), the circuit output parts ( 122 ), and circuit power supply parts ( 123 ) of the plurality of circuit connection units ( 120 ), respectively; a body circuit board ( 230 ) which is connected to the plurality of body connection parts ( 220 ) and mounted on a body circuit mounting space ( 213 ) of the body ( 210 ) and in which a body circuit is disposed; an input terminal ( 201 ) disposed in the body ( 210 ) to receive an input signal of a guitar (a) and connected to the body circuit; an output terminal ( 202 ) disposed in the body ( 210 ) to transmit an output signal to an amplifier (b) and connected to the body circuit; and a plurality of foot switches ( 600 ) which is installed on the body ( 210 ) or a separate device connected to the body ( 210 ) so that various combinations of the guitar effector modules ( 110 ) are obtained by turning on/off one or the plurality of guitar effector modules ( 100 ) according to setting about the body circuit and which is connected to the body circuit, wherein the body circuit performs a control so that the input signal received through the input terminal ( 201 ) is distorted by sequentially passing through the plurality of component circuits to output the distorted signal through the output terminal ( 202 ), the plurality of guitar effector modules ( 100 ) include a No. 1 guitar effector module ( 101 ), a No. 2 guitar effector module ( 102 ), and a No. 3 guitar effector module ( 103 ), the plurality of foot switches ( 600 ) includes a plurality of alternative switches ( 610 ) including a No. 1 alternative switch ( 611 ) and a No. 2 alternative switch ( 612 ) and an independent switch ( 620 ), the No. 1 alternative switch ( 611 ) is set to the plurality of guitar effector modules ( 100 ), the No. 2 alternative switch ( 612 ) is set to the plurality of guitar effector modules ( 100 ) so that combinations different from the combinations of the plurality of guitar effector modules ( 100 ), which are set by the No. 1 alternative switch ( 611 ), are obtained, the independent switch ( 620 ) is set to the No. 3 guitar effector module ( 103 ), in a state in which the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) are turned off, or the No. 2 alternative switch ( 612 ) is turned on, when the No. 1 alternative switch ( 611 ) is turned on, the guitar effector module ( 100 ) set by the No. 1 alternative switch ( 611 ) is turned on, and the guitar effector module ( 100 ) set by only the No. 2 alternative switch ( 612 ) is turned off, in a state in which the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) are turned off, or the No. 1 alternative switch ( 611 ) is turned on, when the No. 2 alternative switch ( 612 ) is turned on, the guitar effector module ( 100 ) set by the No. 2 alternative switch ( 612 ) is turned on, and the guitar effector module ( 100 ) set by only the No. 1 alternative switch ( 611 ) is turned off, and in a state in which the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) are turned off, the No. 1 alternative switch ( 611 ) is turned on, or the No. 2 alternative switch ( 612 ) is turned on, when the No. 1 independent switch ( 621 ) is turned on, the No. 3 guitar effector module ( 103 ) is turned on, and each of other guitar effector modules ( 100 ) of the plurality of guitar effector modules ( 100 ) is maintained in its original state. 
     When the independent switch ( 620 ) is turned off in the turn-on state of the independent switch ( 620 ), the No. 3 compactor ( 503 ) may be turned off, and each of other guitar effector modules ( 101 ,  102 ) of the plurality of guitar effector modules ( 100 ) may be maintained in its original state. 
     In case in which the No. 2 alternative switch ( 612 ) is not set to the No. 3 guitar effector module ( 103 ), when the No. 2 alternative switch ( 612 ) is turned on in the turn-on state of the independent switch ( 620 ) and in the turn-off state of the No. 1 alternative switch ( 611 ) and the No. 2 alternative switch ( 612 ) or in the turn-on state of the No. 1 alternative switch ( 611 ), the No. 3 guitar effector module ( 103 ) may be turned off. 
     The No. 1 alternative switch ( 611 ) may be set to the plurality of guitar effector modules ( 100 ) including the No. 1 guitar effector module ( 101 ), and when the No. 1 alternative switch ( 611 ) is turned off in the turn-on state of the No. 1 alternative switch ( 611 ), only the No. 1 guitar effector module ( 101 ) may be turned off, and the other guitar effector module ( 100 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state. 
     When the No. 1 alternative switch ( 611 ) is turned on in the turn-off state of the No. 1 alternative switch ( 611 ), only the No. 1 guitar effector module ( 101 ) may be turned on, and the other guitar effector module ( 100 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state. 
     The No. 1 alternative switch ( 611 ) may be set to the plurality of guitar effector modules ( 100 ) not including the No. 1 guitar effector module ( 101 ), and when the No. 1 alternative switch ( 611 ) is turned off in the turn-on state of the No. 1 alternative switch ( 611 ), the guitar effector module ( 100 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state, and the No. 1 guitar effector module ( 101 ) may be turned on. 
     When the No. 1 alternative switch ( 611 ) is turned on in the turn-off state of the No. 1 alternative switch ( 611 ), only the No. 1 guitar effector module ( 101 ) may be turned off, and the other guitar effector module ( 100 ) set by the No. 1 alternative switch ( 611 ) may be maintained in the turn-on state. 
     In case in which the No. 2 alternative switch ( 612 ) is not set to the No. 3 guitar effector module ( 103 ), when the No. 2 alternative switch ( 612 ) is turned off in the turn-on state of the No. 2 alternative switch ( 612 ) and the independent switch ( 620 ), only the No. 3 guitar effector module ( 103 ) may be turned off, and the other guitar effector module ( 100 ) set by the No. 2 alternative switch ( 612 ) may be maintained in the turn-on. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
       The accompanying drawings are included to provide a further understanding of the inventive concept, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the inventive concept and, together with the description, serve to explain principles of the inventive concept. In the drawings: 
         FIGS. 1 to 10  are plan views illustrating types of compactors according to the related art; 
         FIG. 11  is a view illustrating constituents of the guitar effector loop according to the related art; 
         FIG. 12  is a conceptual view of the guitar effector loop according to the related art; 
         FIG. 13  is a view illustrating constituents of a bank of the guitar effector loop according to the related art; 
       An embodiment of the present invention will be described with reference to  FIGS. 14 to 22 , 
         FIG. 14  is a conceptual view of a guitar effector loop according to an embodiment; 
         FIG. 15  is a view illustrating constituents of a bank of the guitar effector loop according to an embodiment; 
         FIG. 16  is a conceptual view of a guitar effector loop according to another embodiment; 
         FIG. 17  is a view illustrating constituents of a bank of the guitar effector loop according to another embodiment; 
         FIG. 18  is a perspective view of a guitar effector module; 
         FIG. 19  is a plan view illustrating a first usage state of a multi-type guitar effector; 
         FIG. 20  is a perspective view illustrating a second use state of the multi-type guitar effector; 
         FIG. 21  is an exploded perspective view of the multi-type guitar effector; and 
         FIG. 22  is a cross-sectional view of the multi-type guitar effector. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 
     The present invention relates to a guitar effector loop.  FIGS. 14 to 17  illustrate a guitar effector loop to which a compactor is connected according to an embodiment, and  FIGS. 18 to 22  illustrate a multi-type guitar effector having a guitar effector loop function. 
       FIGS. 14 to 17  illustrate a guitar effector loop including foot switches  600  which are connected to a guitar a, an amplifier b, and a plurality of compactors  500  and set to turn on/off one or more compactors  500  of the plurality of compactors  500  according to setting of a control unit of a body. Here, the plurality of foot switches  600  are installed on the body so that various combinations of the plurality of compactors  500  are obtained. 
     Also, the plurality of compactors  500  include a No. 1 compactor  501 , a No. 2 compactor  502 , and a No. 3 compactor  503 . The plurality of foot switches  600  include a plurality of alternative switches  610  including a No. 1 alternative switch  611  and a No. 2 alternative switch  612  and an independent switch  620 . The No. 1 alternative switch  611  is set to the plurality of compactors  500 , and the No. 2 alternative switch  612  is set to the plurality of compactors  500  so that combinations different from the combinations of the plurality of compactors  500 , which are set by the No. 1 alternative switch  611 , are obtained. 
     One or plurality of independent switches  620  may be set. Hereinafter, a case in which a No. 1 independent switch  621  is set to the No. 3 compactor  503 , and a No. 2 independent switch  522  is set to the No. 4 compactor  504  will be described. 
     Hereinafter, an embodiment of a case in which the No. 1 alternative switch  611  is set to the plurality of compactors  501 ,  502 , and  503 , and the No. 2 alternative switch  612  is set to the plurality of compactors  501 ,  502 , and  504  will be described (see  FIG. 14 ). 
     In a state in which the No. 1 alternative switch  611  and the No. 2 alternative switch  612  are turned off, or the No. 2 alternative switch  612  is turned on, when the No. 1 alternative switch  611  is turned on, the compactors  501 ,  502 , and  503  set by the No. 1 alternative switch  611  is turned on, and also, the compactor  504  set by only the No. 2 alternative switch  612  is turned off. 
     That is, in a state in which the No. 2 alternative switch  612  is turned on (the compactors  510 ,  502 , and  504  are turned on), when the No. 1 alternative switch  611  is turned on, the compactor  504  set by only the No. 2 alternative switch  612  is turned off, and also, the compactors  501  and  502 , which are commonly set by the Nos. 1 and 2 alternative switches  611  and  612 , is maintained in turn-on state. 
     In a state in which the No. 1 alternative switch  611  and the No. 2 alternative switch  612  are turned off, or the No. 1 alternative switch  611  is turned on, when the No. 2 alternative switch  612  is turned on, the compactors  501 ,  502 , and  504  set by the No. 2 alternative switch  612  is turned on, and also, the compactor  503  set by only the No. 1 alternative switch  611  is turned off. 
     In this case also, the compactors  501  and  502 , which are commonly set by the Nos. 1 and 2 alternative switches  611  and  612 , are maintained in turn-on state. 
     In a state in which the No. 1 alternative switch  611  and the No. 2 alternative switch  612  are turned off, the No. 1 alternative switch  611  is turned on, or the No. 2 alternative switch  612  is turned on, when the No. 1 independent switch  621  is turned on, the No. 3 compactor  503  is turned on, and also, each of other compactors  501 ,  502 , and  504  of the plurality of compactors  500  is maintained in its original state (in turn-on state or turn-off state). 
     When the No. 1 independent switch  621  is turned on, the No. 3 compactor  503  set by the first independent switch  621  is turned on, and also, each of other compacts  501 ,  502 , and  504  is maintained in its original state (in turn-on state or turn-off state). 
     When the No. 2 independent switch  622  of the plurality of independent switches  620  is turned on, the No. 4 compactor  504  set by the No. 2 independent switch  622  is turned on, and also, each of other compacts  501 ,  502 , and  503  is maintained in its original state (in turn-on state or turn-off state). 
     That is, although the present invention is the same as the related art in that combinations of different compactors are selected by selection of the No. 1 alternative switch  611  and the No. 2 alternative switch  612 , the compactors may be separately turned on or off regardless of the above-described combination. 
     Thus, following combinations of the compactors are possible. 
     When a player selects a combination of the compactors  501 ,  502 , and  503  by the turn-on of the No. 1 alternative switch  611 , since the set compactor  503  is separately turned on or off by the turn-on or -off of the No. 1 independent switch  621 , and the set compactor  504  is separately turned on or off by the turn-on or -off of the No. 2 independent switch  622 , three combinations ( 501 ,  502 , and  503 ), ( 501  and  502 ) and ( 501 ,  502 ,  503 , and  504 ) may be possible. 
     When the player selects a combination of the compactors  501 ,  502 , and  504  by the turn-on of the No. 2 alternative switch  612 , since the set compactor  503  is separately turned on or off by the turn-on or -off of the No. 1 independent switch  621 , and the set compactor  504  is separately turned on or off by the turn-on or -off of the No. 2 independent switch  622 , three combinations ( 501 ,  502 , and  504 ), ( 501  and  502 ) and ( 501 ,  502 ,  503 , and  504 ) may also be possible. 
     When the player does not select all of the No. 1 alternative switch  611  and the No. 2 alternative switch  612 , since the set compactor  503  is separately turned on or off by the turn-on or -off of the No. 1 independent switch  621 , and the set compactor  504  is separately turned on or off by the turn-on or -off of the No. 2 independent switch  622 , three combinations ( 503 ), ( 504 ) and ( 503  and  504 ) may also be possible. 
     Except for the duplicated combinations of the above-described combinations, seven combinations may be obtained. 
     That is, although only one combination of four combinations preset by the four switches is selected in the related art, one of the seven combinations may be selected by the four switches in the present invention. Thus, the number of combinations of the guitar effectors may increase without increasing the number of switches. 
     However, although a foot motion for selecting one of the four switches is performed in the related art, there is an inconvenience that it is necessary to perform a foot motion for selecting one to three switches of the four switches in the present invention. 
     However, when considering the fact that there is not a big hindrance to the performance even if there is a little time interval without necessarily pressing the plurality of switches at the same time and the fact that, a player is using a plurality of compactors, the player does not feel the pressure of actually pushing one or three switches. 
     Hereinabove, the case in which the two alternative switch and one or two independent switches on the basis of four switches are set has been described as an example. However, as long as a plurality of alternative switches and one or more independent switches are set, the above-described effects may be obtained. 
     That is, all of a case in which three alternative switches and one independent switch on the basis of four switches are set, a case in which three alternative switches and two independent switches on the basis of five switches are set, and a case in which four alternative switches and one independent switch on the basis of five switches are set may be possible. 
     Also, since something of the above switches is not fixed as an alternative switch, and something else is not fixed as an independent switch, even though the switches are the same, the switches may be used as the alternative switches or the independent switches according to setting of the player. 
     A unique number is set for each of the combinations and stored in a bank so that the unique numbers are selected and used as needed. Also, the independent switches are preferably marked with different colors or shapes (see  FIG. 15 ). 
     When the No. 1 independent switch  621  is turned off in the turn-on state of the No. 1 alternative switch  611 , the No. 3 compactor  503  may be turned off, and also, each of other compactors  501  and  502  of the plurality of compactors  500  may be maintained in its original state. This case may be preferable for the above effects. 
     As illustrated in  FIG. 14 , in case in which the No. 2 alternative switch  612  is not set to the No. 3 compactor  503 , when the No. 2 alternative switch  612  is turned on in the turn-on state of the No. 1 independent switch  621  and in the turn-off state of the No. 1 alternative switch  611  and the No. 2 alternative switch  612  or in the turn-on state of the No. 1 alternative switch  611  (the turn-on state of the No. 3 compactor  503 ), the No. 3 compactor  503  may be turned off. 
     That is, in the state in which only the No. 3 compactor  503  is in the turn-on state (the turn-off state of the No. 1 alternative switch  611  and the No. 2 alternative switch  612 ), or the Nos. 1, 2, and 3 compactors  501 ,  502 , and  503  are in the turn-on state (the turn-on state of the No. 1 alternative switch  611 ), the No. 2 alternative switch  612  may be turned on to turn on only the Nos. 1, 2, and 4 compactors  501 ,  502 , and  504  during the performance while the No. 3 compactor  503  is turned off by the turn-on/off of the No. 1 independent switch  621 . Thus, a desired combination of the compactors may be quickly selected by the No. 2 alternative switch  612 . 
     Also, in case in which the No. 1 alternative switch  611  is not set to the No. 4 compactor  504 , when the No. 1 alternative switch  611  is turned on in the turn-on state of the No. 2 independent switch  622  and in the turn-off state of the No. 1 alternative switch  611  and the No. 2 alternative switch  612  or in the turn-on state of the No. 2 alternative switch  612 , the No. 4 compactor  504  may be turned off to obtain the above-described effects. 
     The No. 1 alternative switch  611  is set to the plurality of compactors  501 ,  502 , and  503  including the No. 1 compactor  501 , and when the No. 1 alternative switch  611  is turned off in the turn-on state of the No. 1 alternative switch  611 , only the No. 1 compactor  501  may be turned off, and also, each of other compactors  502  and  503  set by the No. 1 alternative switch  611  may be maintained in the turn-on state. 
     Also, the No. 2 alternative switch  612  is set to the plurality of compactors  502 ,  502 , and  504  including the No. 2 compactor  502 , and when the No. 2 alternative switch  612  is turned off in the turn-on state of the No. 2 alternative switch  612 , only the No. 2 compactor  502  may be turned off, and also, each of other compactors  502  and  503  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     Furthermore, when the No. 1 alternative switch  611  is turned on in the turn-off state of the No. 1 alternative switch  611 , only the No. 1 compactor  501  may be turned off, and also, each of other compactors  502  and  503  set by the No. 1 alternative switch  611  may be maintained in the turn-on state. When the No. 2 alternative switch  612  is turned on in the turn-off state of the No. 2 alternative switch  612 , only the No. 2 compactor  502  may be turned on, and also, each of other compactors  501  and  504  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     That is, the No. 1 alternative switch  611  and the No. 2 alternative switch  612  may fundamentally selectively (alternatively) operate. Here, when the No. 1 alternative switch  611  is pushed again in the turn-on state of the No. 1 alternative switch  611 , the No. 1 compactor  501  is turned off as if the No. 1 compactor  501  is the independent switching. Also, when the No. 2 alternative switch  612  is pushed in the turn-on state of the No. 2 alternative switch  612 , the No. 2 compactor  502  may be turned off as if the No. 2 compactor  502  is the independent switch. Thus, more various combinations may be obtained. 
     In the guitar effector loop according to the related art, one of the plurality of alternative switches is pushed to be selected (turned on) only, and there is no function that pushes the selected alternative switch again to turn off. 
     However, the above-described embodiment has features in which the alternative switch is pushed to turn off in the turn-on state of the alternative switch, and also, only one preset compactor is turned off, but all of the plurality of compactors, which are set by the corresponding alternative switch, are turned off when turned off. 
     Thus, following combinations of the compactors may be obtained. 
     When the player selects a combination of the compactors  501 ,  502 , and  503  by the turn-on of the No. 1 alternative switch  611 , since the set compactor  503  is separately turned on or off by the turn-on or -off of the No. 1 independent switch  621 , the set compactor  504  is separately turned on or off by the turn-on or off of the No. 2 independent switch  622 , and only the preset one compactor  501  is turned of by the turn-off of the No. 1 alternative switch  611 , six combinations may be possible. 
     ( 501 ,  502 , and  503 ), ( 501  and  502 ), ( 501 ,  502 ,  503 , and  504 ), ( 502  and  503 ), ( 502 ), and ( 502 ,  503 , and  504 ) 
     When the player selects a combination of the compactors  502 ,  502 , and  504  by the turn-on of the No. 2 alternative switch  612 , since the set compactor  503  is separately turned on or off by the turn-on or -off of the No. 1 independent switch  621 , the set compactor  504  is separately turned on or off by the turn-on or off of the No. 2 independent switch  622 , and only the preset one compactor  502  is turned of by the turn-off of the No. 1 alternative switch  612 , six combinations may be possible. 
     ( 501 ,  502 , and  504 ), ( 501  and  502 ), ( 501 ,  502 ,  503 , and  504 ), ( 501  and  504 ), ( 501 ), and ( 501 ,  503 , and  504 ) 
     As described above, when the player does not select all of the No. 1 alternative switch  611  and the No. 2 alternative switch  612 , since the set compactor  503  is separately turned on or off by the turn-on or -off of the No. 1 independent switch  621 , and the set compactor  504  is separately turned on or off by the turn-on or -off of the No. 2 independent switch  622 , three combinations ( 503 ), ( 504 ) and ( 503  and  504 ) may also be possible. 
     Except for the duplicated combinations of the above-described combinations, thirteen combinations may be obtained. 
     That is, although only one combination of four combinations preset by the four switches is selected in the related art, one of the thirteen combinations may be selected by the four switches in the present invention. Thus, the number of combinations of the guitar effectors may increase without increasing the number of switches. 
     In the above-described embodiment, the No. 1 alternative switch  611  is set to the No. 1 compactor  501  (when the switch is pushed, the compactor is turned on), and the No. 2 alternative switch  612  is set to the No. 2 compactor  502 . On the other hand, although the No. 1 alternative switch  611  is not set to the No. 1 compactor  501 , or the No. 2 alternative switch  612  is not set to the No. 2 compactor  502 , the above-described effects may be obtained (see  FIGS. 16 and 17 ). 
     That is, the No. 1 alternative switch  611  is set to the plurality of compactors  502  and  503 , which do not include the No. 1 compactor  501 , and when the No. 1 alternative switch  611  is turned off in the turn-on state of the No. 1 alternative switch  611 , the compactor  502  and  503  set by the No. 1 alternative switch  611  may be maintained in the turn-on state, and also, the No. 1 compactor  501  may be turned on. 
     The No. 2 alternative switch  612  is set to the plurality of compactors  502  and  503 , which do not include the No. 1 compactor  502 , and when the No. 2 alternative switch  612  is turned off in the turn-on state of the No. 2 alternative switch  612 , the compactor  501  and  504  set by the No. 2 alternative switch  612  may be maintained in the turn-on state, and also, the No. 2 compactor  502  may be turned on. 
     Furthermore, when the No. 1 alternative switch  611  is turned on in the turn-off state of the No. 1 alternative switch  611 , only the No. 1 compactor  501  may be turned off, and also, each of other compactors  502  and  503  set by the No. 1 alternative switch  611  may be maintained in the turn-on state. When the No. 2 alternative switch  612  is turned on in the turn-off state of the No. 2 alternative switch  612 , only the No. 2 compactor  502  may be turned on, and also, each of other compactors  501  and  504  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     In this embodiment, although the turn-on/off of the No. 1 compactor  501  by the No. 1 alternative switch  611  and the turn-on/off of the No. 2 compactor  502  by the No. 2 alternative switch  612  reversely operate with respect to each other, the same function and effect as those of the abovementioned embodiment may be substantially realized. 
     That is, the No. 1 alternative switch  611  and the No. 2 alternative switch  612  may fundamentally selectively (alternatively) operate. Here, when the No. 1 alternative switch  611  is pushed again in the turn-on state of the No. 1 alternative switch  611 , the No. 1 compactor  501  is turned off as if the No. 1 compactor  501  is the independent switching. Also, when the No. 2 alternative switch  612  is pushed in the turn-on state of the No. 2 alternative switch  612 , the No. 2 compactor  502  may be turned off as if the No. 2 compactor  502  is the independent switch. Thus, more various combinations may be obtained. 
     As illustrated in  FIG. 14 , when the No. 2 alternative switch  612  is not set to the No. 3 compactor  503 , the No. 2 alternative switch  612  is turned off in the turn-on state of the No. 1 alternative switch  611  and the No. 2 alternative switch  612  (the turn-on state of the compactors  501  to  504 ), only the No. 3 compactor  503  may be turned off, and also, each of other compactors  501 ,  502 , and  503  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     That is, in the state in which the Nos. 1, 2, 3, and 4 compactor  501 ,  502 ,  503 , and  504  are in the turn-on state (the turn-off state of the No. 2 alternative switch  612  and the No. 1 alternative switch  611 ), the No. 2 alternative switch  612  may be turned on to turn on only the Nos. 1, 2, and 4 compactors  501 ,  502 , and  504  during the performance while the No. 3 compactor  503  is turned off by the turn-on/off of the No. 1 independent switch  621 . Thus, a desired combination of the compactors may be quickly selected by the No. 2 alternative switch  612 . 
     Hereinafter, a multi-type guitar effector according to the present invention will be described with reference to  FIGS. 18 to 22 . 
     A multi-type guitar effector according to the present invention has a fundamental feature in which a plurality of guitar effector modules  100  are detachably installed in a body  210 , wherein different kinds of plurality of guitar effector modules  100  (corresponding to the compactors according to the foregoing embodiments) are installed, and the above-described guitar effector loop function is given. 
     Each of the guitar effector modules  100  includes: a component circuit board  110  on which a circuit for an analogue type guitar effector is disposed; a module case  130  on which a variable resistor driving unit  131  for adjusting a sound by the circuit is mounted and in which the component circuit board  110  is installed; and a circuit connection unit  120  in which a circuit unit part  121 , a circuit output part  122 , and a circuit power supply part  123  with respect to the circuit are disposed and which is electrically connected to the component circuit board  110  and is installed outside the module case  130  (see  FIG. 16 ). 
     The multi-type guitar effector on which the plurality of guitar effector modules  100  are mounted includes: the body having a module mounting space  211  for mounting the plurality of guitar effector modules  100  therein; a plurality of opened parts  212  defined in a top surface of the body  210  having a shape corresponding to one or a plurality of module cases  130  so that the plurality of module cases  130  are installed; a plurality of body connection units  220  in which body input parts  221 , body output parts  222 , and body power supply parts  223  are disposed to be connected to the circuit input parts  121 , the circuit output parts  122 , and the circuit power supply parts  123  of the plurality of circuit connection units  120 , respectively; a body circuit board  230  which is connected to the plurality of body connection parts  220  and mounted on a body circuit mounting space  213  of the body  210  and in which a body circuit is disposed; an input terminal  201  disposed in the body  210  to receive an input signal of a guitar a and connected to the body circuit; an output terminal  202  disposed in the body  210  to transmit an output signal to an amplifier b and connected to the body circuit; and a plurality of foot switches  600  which is installed on the body  210  or a separate device connected to the body  210  so that various combinations of the guitar effector modules  110  are obtained by turning on/off one or the plurality of guitar effector modules  100  according to setting about the body circuit and which is connected to the body circuit (see  FIGS. 18 and 19 ). 
     Here, the body circuit performs a control so that the input signal received through the input terminal  201  is distorted by sequentially passing through the plurality of component circuits to output the distorted signal through the output terminal  202 . 
     As described above, the multi-type guitar effector according to the present invention may have the function of the above-described guitar effector loop as it is. 
     That is, the plurality of guitar effector modules  100  include a No. 1 guitar effector module  101 , a No. 2 guitar effector module  102 , and a No. 3 guitar effector module  103 . The plurality of foot switches  600  include a plurality of alternative switches  610  including a No. 1 alternative switch  611  and a No. 2 alternative switch  612  and an independent switch  620 . The No. 1 alternative switch  611  is set to the plurality of guitar effector modules  100 , and the No. 2 alternative switch  612  is set to the plurality of guitar effector modules  100  so that combinations different from the combinations of the plurality of guitar effector modules  100 , which are set by the No. 1 alternative switch  611 , are obtained. Also, the independent switch  620  is set to the No. 3 guitar effector module  103 . 
     In a state in which the No. 1 alternative switch  611  and the No. 2 alternative switch  612  are turned off, or the No. 2 alternative switch  612  is turned on, when the No. 1 alternative switch  611  is turned on, the guitar effector module  100  set by the No. 1 alternative switch  611  is turned on, and also, the guitar effector module  100  set by only the No. 2 alternative switch  612  is turned off. 
     In a state in which the No. 1 alternative switch  611  and the No. 2 alternative switch  612  are turned off, or the No. 1 alternative switch  611  is turned on, when the No. 2 alternative switch  612  is turned on, the guitar effector module  100  set by the No. 2 alternative switch  612  is turned on, and also, the guitar effector module  100  set by only the No. 1 alternative switch  611  is turned off. 
     In a state in which the No. 1 alternative switch  611  and the No. 2 alternative switch  612  are turned off, the No. 1 alternative switch  611  is turned on, or the No. 2 alternative switch  612  is turned on, when the No. 1 independent switch  621  is turned on, the No. 3 guitar effector module  103  is turned on, and also, each of other guitar effector modules  100  of the plurality of guitar effector modules  100  is maintained in its original state. 
     The effects of these constituents are the same as that of the embodiment of the above-described guitar effector loop. 
     Also, specific embodiments about the above-described guitar effect loop may be applied to the embodiment of the multi-type guitar effector as it is, and the above-described functions and effects may be obtained also in this case. 
     When the No. 1 independent switch  621  is turned off in the turn-on state of the No. 1 alternative switch  611 , the No. 3 guitar effector module  103  may be turned off, and also, each of other guitar effector modules  101  and  102  of the plurality of guitar effector modules  100  may be maintained in its original state. This case may be preferable for the above effects. 
     In case in which the No. 1 alternative switch  611  is not set to the No. 3 guitar effector module  103 , when the No. 1 alternative switch  611  is turned on in the turn-on state of the No. 1 independent switch  621  and in the turn-off state of the No. 1 alternative switch  611  and the No. 2 alternative switch  612  or in the turn-off state of No. 2 alternative switch  612 , the No. 3 guitar effector module  103  may be turned off to quickly select a desired combination of the effector modules. 
     In case in which the No. 2 alternative switch  612  is not set to the No. 3 guitar effector module  103 , when the No. 2 alternative switch  612  is turned on in the turn-on state of the No. 1 independent switch  621  and in the turn-off state of the No. 1 alternative switch  611  and the No. 2 alternative switch  612  or in the turn-on state of the No. 1 alternative switch  611 , even though the No. 3 guitar effector module  103  is turned off, the above effects may be obtained. 
     The No. 1 alternative switch  611  is set to the plurality of guitar effector modules  100  including the No. 1 guitar effector module  101 , and when the No. 1 alternative switch  611  is turned off in the turn-on state of the No. 1 alternative switch  611 , only the No. 1 guitar effector module  101  may be turned off, and also, each of other guitar effector modules  100  set by the No. 1 alternative switch  611  may be maintained in the turn-on state. 
     The No. 2 alternative switch  612  is set to the plurality of guitar effector modules  102  including the No. 2 guitar effector module  102 , and when the No. 2 alternative switch  612  is turned off in the turn-on state of the No. 2 alternative switch  612 , only the No. 2 guitar effector module  102  may be turned off, and also, each of other guitar effector modules  100  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     When the No. 1 alternative switch  611  is turned on in the turn-off state of the No. 1 alternative switch  611 , only the No. 1 guitar effector module  101  may be turned off, and also, each of other guitar effector modules  100  set by the No. 1 alternative switch  611  may be maintained in the turn-on state. When the No. 2 alternative switch  612  is turned on in the turn-off state of the No. 2 alternative switch  612 , only the No. 2 guitar effector module  102  may be turned on, and also, each of other guitar effector modules  100  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     As described above, this has the effect that a variety of guitar effector modules are capable of being combined by selecting the switches. 
     The No. 1 alternative switch  611  is set to the plurality of guitar effector modules  100  which does not include the No. 1 guitar effector module  101 , and when the No. 1 alternative switch  611  is turned off in the turn-on state of the No. 1 alternative switch  611 , the guitar effector module  100  set by the No. 1 alternative switch  611  may be maintained in the turn-on state, and also, the No. 1 guitar effector module  101  may be turned on. 
     The No. 2 alternative switch  612  is set to the plurality of guitar effector modules  100  which does not include the No. 2 guitar effector module  102 , and when the No. 2 alternative switch  612  is turned off in the turn-on state of the No. 2 alternative switch  612 , the guitar effector module  100  set by the No. 2 alternative switch  612  may be maintained in the turn-on state, and also, the No. 2 guitar effector module  102  may be turned on. 
     When the No. 1 alternative switch  611  is turned on in the turn-off state of the No. 1 alternative switch  611 , only the No. 1 guitar effector module  101  may be turned off, and also, each of other guitar effector modules  100  set by the No. 1 alternative switch  611  may be maintained in the turn-on state. When the No. 2 alternative switch  612  is turned on in the turn-off state of the No. 2 alternative switch  612 , only the No. 2 guitar effector module  102  may be turned off, and also, each of other guitar effector modules  100  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     As described above, this also has the effect that a variety of guitar effector modules are capable of being combined by selecting the switches. 
     In case in which the No. 1 alternative switch  611  is not set to the No. 3 guitar effector module  103 , when the No. 1 alternative switch  611  is turned off in the turn-on state of the No. 1 alternative switch  611  and the No. 1 independent switch  621 , only the No. 3 guitar effector module  103  may be turned off, and also, each of other guitar effector modules  100  set by the No. 1 alternative switch  611  may be maintained in the turn-on state. 
     In case in which the No. 2 alternative switch  612  is not set to the No. 3 guitar effector module  103 , when the No. 2 alternative switch  612  is turned off in the turn-on state of the No. 1 alternative switch  611  and the No. 2 independent switch  612 , only the No. 3 guitar effector module  103  may be turned off, and also, each of other guitar effector modules  100  set by the No. 2 alternative switch  612  may be maintained in the turn-on state. 
     As described above, this has the advantage that the alternative switch  610  is capable of quickly selecting a desired combination of the effector modules. 
     Embodiments and effects with respect to the plurality of switches  600  may be fundamentally the same as those of the above-described guitar effector loop, and thus, specific constituents and effects of the multi-type guitar effector will be described below. 
     The body circuit performs a control such that the input signal received through the input terminal  201  is transferred to the circuit input parts  121  of the plurality of circuit connection units  120  through the body output parts  222  of the plurality of body connection units  220 , and the signal distorted by the plurality of component circuits is transferred to the body input parts  221  of the plurality of body connection units  220  through the circuit output parts  122  of the plurality of circuit connection units  120  and then is output through the output terminal  202 . 
     Since it is preferred that a signal ground (signal GND) is separately connected to remove noise, signal GND connection parts  124  of the circuit connection units  120  are separately connected to signal GND connection parts  224  of the body connection parts  220 . 
     For example, the input signal received through the input terminal  201  is transferred to the circuit input part  121  of the circuit connection unit  120  of the No. 1 guitar effector module  101  through the body output part  222  of the No. 1 body connection unit  220  of the body  210 , and the signal distorted by the circuit of the No. 1 guitar effector module  101  is transferred to the body input part  221  of the No. 1 body connection unit  220  through the circuit output part  122  of the circuit connection unit  120 , and then is transferred to the body circuit again. 
     The signal of the body circuit is transferred to the circuit input part  121  of the circuit connection unit  120  of the No. 2 guitar effector module  100  through the body output part  222  of the No. 2 body connection unit  220  of the body  210 , and the signal distorted by the circuit of the No. 2 guitar effector module  102  is transferred to the body input part  221  of the No. 2 body connection unit  220  through the circuit output part  122  of the circuit connection unit  120 , and then is transferred to the body circuit again. 
     The signal distorted by the circuit of the final guitar effector module  100  through this process is transferred to the body input part  221  of the final body connection unit  220  through the circuit output part  122  of the circuit connection unit  120  of the final guitar effector module  100  and then is output through the output terminal  202 . 
     That is, the multi-type guitar effector according to the present disclosure is not configured by the plurality of compactors which are separate complete products and a multi-type apparatus (loop) as in the related art, but a complete product thereof is finally obtained by coupling the plurality of guitar effector modules  100  to the body  210  of the multi-type guitar effector. 
     When this configuration is selected, a combination structure in which a plurality of circuits for the guitar effectors are mutually coupled to each other may be achieved only by mounting the guitar effector modules  100  on the body  210  and connecting the circuit connection units  120  thereof to the body connection units  220  of the body  210 . Thus, use of a plurality of cables as in the related art may be omitted, so that transport, storage, installation and use thereof are simple and convenient. 
     The variable resistor driving unit  131  for adjusting a level, a tone, and the like may be mounted on the module case  130 , and the module case  130  is coupled to the opened part  212  of the body. Therefore, the effector circuit of the corresponding component assembly may be adjusted by the above-described variable resistor driving part  131 . 
     A catching part  150  that protrudes outward from an upper portion of the module case  130  and is stepped upward is disposed on the module case  130 . While a top surface of the guitar effector module  100  having such a structure is exposed to the above opened part  212  through a lower opened portion of the body  210 , when the catching part  150  is caught by an edge of the opened part  212  of the body  210 , and the lower opened portion of the body  210  is coupled (screw-coupled or the like) through a separate closed plate  250 , simple, convenient, and stable coupling may be achieved (see  FIG. 22 ). 
     When a coupling hole  151  is defined in the catching part  150 , and a screw member or the like is coupled to the body  210  through the coupling hole  151 , more stable coupling may be achieved. 
     The opened part  212  of the body  210  has a shape corresponding to one or the plurality of module cases  130 . When the opened part  212  has the shape corresponding to the plurality of module cases  130 , a plurality of small guitar effector modules  100   a  may be installed in one opened part  212  (see  FIG. 19 ). 
     It is preferred for stable mounting of the guitar effector modules  100  that the body connection units  220  of the body  210  of the multi-type guitar effector protrude from lower sides of the opened parts  212 , and the circuit connection units  120  of the guitar effector modules  100  are recessed to correspond thereto (see  FIG. 22 ). 
     The circuit input part  121  for transferring an input signal to the circuit, the circuit output part  122  for outputting an output signal distorted by the circuit, and the circuit power supply part  123  for supplying power to the circuit are disposed in the circuit connection unit  120  of the guitar effector module  100 . 
     The body input part  221  for receiving the output signal from the circuit output part  122 , the body output part  222  for transmitting a signal of the body circuit to the circuit input part  121  of the guitar effector module  100 , and the body power supply part  223  for supplying power to the circuit power supply part  123  are disposed in the body connection unit  220  that is connected to the circuit connection unit  120  (see  FIG. 19 ). 
     The circuit connection unit  120  of the guitar effector module  100  and the body connection part  220  of the body  210  may be fitted in each other by uneven structures. When a coupling structure in which the top surface of the guitar effector module  100  is exposed through the opened part  212  as described above is selected, a groove structure is selected as the circuit connection unit  120  of the guitar effector module  100 , and a protruding structure is selected as the body connection unit  220  of the body  210 , so that the coupling between the body  210  and the guitar effector module  100  and the coupling between the circuit connection unit  120  and the body connection unit  220  may be naturally achieved together. 
     The body  210  is spatially partitioned by a partition wall  214 . The body circuit board  230  is mounted in the body circuit mounting space  213  of the partitioned spaces, and the guitar effector module  100  is mounted in the module mounting space  211  on an opposite side thereto. 
     The body connection unit  220  connected to the body circuit board  230  is exposed close to the module mounting space  211  over the partition wall  214 , and the plurality of guitar effector modules  100  are coupled to each other in such a module mounting space  211 . 
     Thus, a user may obtain a multi-type guitar effector having a desired combination only by coupling the plurality of guitar effector modules  100  to the body  210  in a desired pattern, and accordingly, the coupling the circuit connection unit  120  and the body connection unit  220  in the module mounting space  211 . 
     The input terminal  201  that is connected to the body circuit to receive the input signal from the guitar a and the output terminal  202  that is connected to the body circuit to transmit the output signal to the amplifier b are disposed at one side or opposite sides of the body  210 , and the plurality of switches  240  that are connected to the body circuit to turn on/off the component circuit board  110  are installed to be exposed to the top surface of the body  210 . 
     Here, the switch  600  may have the same function as the switch  600  of the above-described effector loop. 
     The power supply terminal  203  is installed in the body  210 . Power supplied to the power supply terminal  203  is supplied to the plurality of component circuit boards  110  through the body power supply parts  223  of the plurality of body connection units  220  and the circuit power supply parts  123  of the plurality of circuit connection parts  120 . 
     As described above, the body circuit serves to output a signal that is input through one of the plurality of body connection parts  220 , through a subsequent body connection unit  220 , and output a signal that is distorted by repeating this process to the output terminal. 
     The present invention may provide the guitar effector loop that is capable of increasing the number of combinations of the guitar effectors without increasing the number of switches and the multi-type guitar effector using the same. 
     Although the above description merely corresponds to some exemplary embodiments that may be implemented by the present disclosure, as well known, the scope of the present disclosure should not be interpreted as being limited to the above-described embodiments, and all technical spirits having the same basis as that of the above-described technical spirit of the present disclosure are included in the scope of the present disclosure.