Workingman’s
2X10C
OWNER’S MANUALSWR • SCOTTSDALE, AZ • USA

IMPORTANT SAFETY INSTRUCTIONSCAUTION: TO REDUCE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER OR BACK.
NO USER-SERVICEABLE PARTS INSIDE. PLEASE REFER TO A QUALIFIED SERVICE TECHNICIAN.
A. READ INSTRUCTIONS: All safety and operation instructions should be read before the product is operated.
B. RETAIN INSTRUCTIONS: The safety and operating instructions should be retained for future reference.
C. HEED WARNINGS: All of the warnings on this product and in the operating instructions should be adhered to.
D. FOLLOW INSTRUCTIONS: All operating and use instructions should be followed.
E. CLEANING: Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use aslightly damp cloth for cleaning.
F. WATER AND MOISTURE: Do not use this product near water; for example, near a swimming pool, wet basement, and the like.
G. ACCESSORIES: Do not place this product on an unstable cart, stand, tripod, bracket or table. The product may fall, causing
serious injury to a child or adult, and serious damage to the product.
H. VENTILATION: Slots and openings in the unit are provided for ventilation and to ensure reliable operation of the product, toprotect it from overheating, thus these openings must not be blocked or covered. This product should not be placed in a built-in
installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer's instructions have been adhered to.
I. GROUNDING: This product is equipped with a three-wire grounding-type plug, a plug having a third (grounding) pin. This plug will
only fit into a grounding-type power outlet. This is a safety feature. If you are unable to insert the plug into the outlet, contact yourelectrician to replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.
J. POWER CORD PROTECTION: Power supply cords should be routed so that they are not likely to be walked on or pinched by items
placed upon them, paying particular attention to cords at plugs and the point where they exit the product.
K. LIGHTNING: For added protection of this product during a lightning storm or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet. This will prevent damage to the product due to lightning and power-line surges.
L. OVERLOADING: Do not overload wall outlets or extension cords as this can result in a risk of fire or electric shock.
M. OBJECT AND LIQUID ENTRY: Never push objects of any kind into this product through the openings as they may touch dangerous
voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product.
N. SERVICING: Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service personnel.
O. DAMAGE REQUIRING SERVICE: Unplug this product from the wall outlet and refer servicing to qualified service personnel under
the following conditions:
1) When the power supply cord has been damaged2) If liquid has been spilled or objects have fallen into the product3) If the product has been exposed to rain, water, or other conductive liquids4) If the product does not operate normally by following the operating instructions
5) If the product has been dropped or damaged in any way6) When the product exhibits a distinct change in performance.
P. REPLACEMENT PARTS: When replacement parts are required, be sure the service technician has used replacement parts
specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire,electric shock, or other hazards.
Q. SAFETY CHECK: Upon completion of any service or repairs to this product, ask the service technician to perform safety checks todetermine that the product is in proper operating condition.
R. HEAT: The product should be situated away from heat sources such as radiators, heat registers, stoves or other products that
produce heat.

INTRODUCTION
Congratulations on your purchase of the Workingman's 2x10C Bass Combo Amplifier! You now own the mostpowerful combo amp in SWR's world-renowned Workingman's Line of products, a line designed for bassists
who expect typical SWR professional quality at affordable prices.
In today's crowded market, it's easy to forget that SWR pioneered the concept of the 2x10 + tweeter bass
combo amp in the late 1980's with the introduction of the now-famous Redhead. The piece quickly became
the first-call amplifier of first-call studio musicians in New York and Los Angeles, attaining legendary status for
its crystal-clear sound, studio-specific feature set, and ample headroom. As its reputation grew, more andmore people began using it as a live application amplifier, sometimes with a 2x10 or 1x15 extension cabinet
hooked up to take full advantage of the amplifier's tone and power capabilities.
Meanwhile, over time, we received numerous requests from our customers to produce a line of products thatwould incorporate SWR's accurate sound, high reliability, quality components, and hand-made craftsmanship− but at an overall lower cost. This resulted in the development of the Workingman's Series of amplificationfrom SWR. The precision electronic section featured in the Workingman's Series is entirely hand-built,
employing a variety of technologies selected for their sound quality and practical usefulness in a roadworthy
and studio-ready amplifier, including an all-discrete initial gain stage in the preamplifier section and discrete
solid-state design in the power amplifier. Regardless of its lower price, the Workingman's Series offers nocompromises of the essential SWR design and construction philosophy. Corners are not cut from a moreelaborate model: rather, each product's design parameters are conceived from the ground up and the best
available components are selected for each application. Such was the case with the Workingman's 4004
amplifier, a 260/400 watt head that has proven to be one of the most successful and widely-used products in
SWR's history since its release in 1999.
We constantly strive to listen to our customers, and you've told us repeatedly that you wanted a 2x10 +tweeter combo amp in the Workingman's Series. Keeping SWR's design philosophy in mind, we customdesigned a 10" driver specifically for this combo amp, tweaked the design of the popular Workingman's 4004
head, and listened and soundtested repeatedly until it met and exceeded the demands of the many bassists(from inside and outside the company) who tried it. The fast all-solid-state response, the 260-watts (standalone)/400 watts (with any Workingman's extension speaker) power delivery, and the famous SWR sound are
all there. Just like you asked for.
It's all part of SWR's commitment to providing today's bassists with the tools necessary for the pursuit of theultimate goal: finding equipment that not only does the job, but actually enhances the overall musicalexperience and contributes to the creative process. Everyone here at SWR sincerely hopes that the purchaseof your Workingman's 2x10C helps you get there from here…and beyond.
Please take the time to read your Owner's Manual thoroughly and completely, so that you can realize the fullpotential of your new Workingman's 2x10C Bass Combo Amplifier. Once again, thanks for your purchase, andfor letting SWR help Amplify Your Future.™
Sincerely,
SWR
Note:
Note Please take a moment to verify that the following items were included in your SWR Workingman's
2x10C packaging: AC Cable, (4) heavy-duty caster wheels, SWR Catalog.

WORKINGMAN’S 2X10C OWNER’S MANUAL • 1

WORKINGMAN'S 2X10C - FRONT PANEL FEATURES• Discrete Solid State Front End• Balanced XLR Output• Tuner Out Jack• High and Low Sensitivity 1/4" Input Jacks• Gain Control with LED peak clipping indicator• Aural Enhancer Control• Bass Level Control• Lo Mid Level Control• Mid Level Control• Hi Mid Level Control• Treble Level Control• Effects Blend Control• Variable Limiter with Pull Defeat Option• Master Volume Control• Speakers (both internal and extension) On/Off Switch• Stereo Headphones Jack• Single Open Rack Space for effects unit of your choice

WORKINGMAN'S 2X10C - REAR PANEL FEATURES (chassis and cabinet)• Side-Chain Effects Loop (Effects Send and Effects Return 1/4" jacks)• Extension Speaker 1/4" Output Jack• Speaker Fuse (3AG, 10-amp fast-blo)• Line Fuse (3AG, 7-amp slo-blo)• AC Power Cord Receptacle• Internal Speaker On/Off Switch• 3-Way Tweeter Mode Selector Switch (Full Range, -6db, Off)

SPECIFICATIONSPower Ratings (minimum)
260 Watts @ 8 ohms (internal cabinet)
400 Watts @ 4 ohms (with 8-ohm extension cabinet)
Minimum Impedance (amplifier)4 ohmsFrequency Response (power amplifier)-3dB @ 20 Hz and 40 kHz

2 • WORKINGMAN’S 2X10C OWNER’S MANUAL

Speaker Complement(2) 10" custom designed cast-frame SWR drivers(1) LeSon TLX-1 Piezo Tweeter
Cabinet Construction and Features
5/8" 7-ply, Maple or Birch plywood construction, waterproof glue.
All joints Dado and Rabbet, glued and nailed.
Front Slot Port designed to eliminate unwanted noise
Heavy Duty Removable Casters
Heavy Duty Spring Handles
Midnight Blue Carpeting with Stack Lock Corners
Midnight Blue Stamped Steel Vibration-Free Grill
Dimensions
23"W x 23"H x 16.75"DWeight76 lbs.

WORKINGMAN'S 2X10C - GETTING STARTED
Remove the AC cable from the accessory pack and connect it from the amplifier to a standard wall outlet.
Make sure that the "Gain" and "Master Volume" controls are set to the minimum position (fully counterclockwise). Locate the power switch on the right side of the front of the unit and turn the amplifier on. Upon
powering up, don't be surprised if you hear a small pop. This is absolutely normal and will not cause damage
to your speaker system.
(Eliminating this "power on transient" would require a component called a relay. SWR chose not to incorporate
this type of component due to the fact that relays degrade signal quality and often fail, causing the unit tohave no output and requiring a trip to a local service center. If you wish not to hear the pop upon power up,
locate the "Speakers On/Off" switch on the front panel and set it to the down position before you turn the unit
on. Be sure to remember to set the switch back to "On" afterwards, or you may find yourself wondering why
you don't hear anything.)
Plug your instrument into the desired input jack (refer to "Front Panel Features" for greater detail). Turn yourinstrument's volume up to at least 75% of maximum and slowly adjust the gain control. Once you begin toplay your instrument and you see the red light (marked "preamp clip") over the gain control illuminate, backoff the gain a bit. Now turn up the "Master Volume" and you should hear the sound of your instrument
amplified through the Workingman's 2x10C. For more detailed information, please read the entire manual
carefully so that you can fully realize the potential of your new Workingman's 2x10C.
For those who wish to use an extension speaker cabinet with the Workingman's 2x10C, please skip ahead tothe section marked "Extension Speaker Output Section" on page 10.

WORKINGMAN’S 2X10C OWNER’S MANUAL • 3

WORKINGMAN'S 2X10C - FRONT PANEL FEATURESBALANCED D.I. (XLR) OUTPUT
The Balanced XLR output is a true balanced output. No front panel controls affect its signal. The tone andoutput levels are controlled only by the instrument plugged into one of the input jacks. To use this feature, run
an XLR cable from the Balanced D.I. Output to the input of a tape machine, mixing console, etc. This output
is also suitable for sending a signal to a house mixer in live situations.
Wiring for the XLR connector is American standard (as follows):
Pin 1 = ground, Pin 2 = +, Pin 3 = TUNER OUT
The Tuner Out function allows the user to plug their instrument tuner into this jack and "tune up" without
having to unplug and go back and forth from amp to tuner. This feature is totally isolated from the rest of thepreamp and will function regardless of the settings on the front panel. Being isolated on a side chain avoids
loading down of the instrument, which can cause a loss in dynamic range.
To use this feature, connect a shielded patch cord from the Tuner Out jack on your Workingman's 2x10C to
the input jack on your tuner. Turn the amplifier on and you're ready to go. If you do not wish to monitor yoursound during the tuning process, you may either turn down the Master Volume, or set the Speakers On/Off
switch to the down position.
INPUT JACKS
Both input jacks accept a standard 1/4" phone plug and both inputs can be used at the same time. Since thetwo inputs are totally independent, no loss in volume or tone will occur by using two instruments
simultaneously. However, the main applicational use for the two separate input jacks is their difference inlevel, as the Passive/Active input has five times more gain than the Active input. In other words, it's notnecessarily intended as a "submixer" for two instruments, but no harm will come from having two instruments
plugged in at once. Please read below for more details.
PASSIVE/ACTIVE INPUT JACKThis input jack is designed to accommodate both "passive" instruments and most "active" instruments. A
passive instrument has no built-in preamp and does not use a battery, while an active bass utilizes a batteryoperated preamp for gain, tone controls, or both. The Passive/Active Input will work with all instruments having
a maximum output of less than 1 volt RMS. Some active pickups such as EMG, Bartolini, etc., use batteries
for operation and will work perfectly using this input. Instruments made by MTD, Sadowsky, Modulus, etc.,
have active electronics that are suited for use in the Passive/Active input.
Generally speaking, try this input first. If you hear a small amount of distortion and the preamp clip LED is not
activated, try using the Active input jack. If the Active input does not correct any audible distortion, check thebattery in your bass.
ACTIVE INPUT JACKThe Active input jack should be used with instruments having a built-in (on board) preamp or other soundsources that will produce output levels greater than 1 volt RMS. The number of bass manufacturers has
increased significantly over the years, and it's impossible to try and keep track of them all. Generally, if you
have very "hot" pickups and/or tone controls installed in your instrument, and you use them to boost the levelof your bass signal 10 dB or more, you may find the Active input more compatible. The best judge is your own
ears.

4 • WORKINGMAN’S 2X10C OWNER’S MANUALIf you're using a keyboard or bass pedal with the Workingman's 2x10C, we have found the best choice to be
the Active input.
NOTE: Using the Active input with passive basses (active instruments will always employ a battery) may
result in a loss of high end transients. Players who roll off their high end starting at about 2kHz, or prefer a"darker" sound, may find this input more to their liking.
If you hear some distortion with your active bass and are using the Active Input, make sure the preamp clip
LED indicator is not lighting. If the preamp stage is not being driven into clipping, replace the battery inyour instrument.
GAIN CONTROLThe Gain control adjusts the volume of the preamp section. Since the Gain control is similar to a "pad," asmall amount of signal will be heard even with the Gain control rotated fully counter-clockwise ("MIN") if the
Master Volume is up.
After all EQ settings and the Aural Enhancer are set, the Gain control should be raised until the preamp clip
LED barely flashes when your loudest note is struck. This will insure maximum signal to noise ratio andprevent unwanted clipping of the preamp section.
NOTE: The Gain can serve as an EFFECTS SEND LEVEL ADJUSTMENT. If your effect is being overdriven,
turn down the Gain control and readjust your Master Volume for overall loudness.
PREAMP CLIP LED
The preamp clip LED will light whenever the preamp, tone section or output buffer reach clipping (run out ofheadroom). In the event the clip indicator lights, turn down the Gain control. Since this circuit monitors thetone controls, boosting any one of them can cause the clip LED to activate. Once again, you may leave thetone control at its desired level, but turn the Gain control down further.
NOTE: Even though the Preamp Clip LED lighting indicates that at some point the preamp is clipping, noharm is being done to your amplifier. However, clipping of the power amp can cause damage to yourspeakers and is not recommended.
AURAL ENHANCER
The Aural Enhancer is a feature that's been on just about every SWR amplifier since the company's inception
in 1984, and is a trademark part of the "SWR Sound" people have come to know and love. It was developed
to help bring out the fundamental low notes of the bass guitar, enhance the high-end transients, and reduce
certain frequencies that help "mask" the fundamentals. The ultimate result is:
1. A more transparent sound, especially noticeable when slapping and popping.
2. It can make a passive bass take on an "active" type of quality when set at positions of "2 o'clock" orfurther clockwise.
Let's take a second to learn how the Aural Enhancer works. Think of it as a variable tone curve that changes
depending on where you set the Aural Enhancer control knob. As you raise the control clockwise from the"MIN" position, you are elevating a whole range of sound (lows, mids, and highs) at a variety of frequency
points selected specifically because they're different than those selected for the individual Tone Controls.
This remains true up to about the "2 o'clock" position. This position − a favorite for many users − brings out
both the low end fundamentals and crisp highs and, at the same time, adds a little lower midrange to help
cut through the band. However, if you go further clockwise and past the 2:00 position, selected mids will start
WORKINGMAN’S 2X10C OWNER’S MANUAL • 5

to drop off − specifically, a group of frequencies centered around 200 Hz. At this point and after, the effectbecomes much more pronounced. However, the curves involved here are gentle, as opposed to the very
extreme curves you can create by boosting or cutting the Active Tone Controls (EQ).
Most significantly for basses, the Aural Enhancer will help bring out the fundamentals of your lower registers
without masking them with overtones, as is possible when using the Bass control only. At the same time, it
opens up the sibilance characteristics of all instruments without being harsh.
Obviously, numbers and curves and circuits all mean nothing compared to what you hear with your own ears.
Play a chord, a repeated lick, or a harmonic, and turn the Aural Enhancer control to various points on theknob to hear the effect for yourself. As always, your ears are the best judge when it comes to settings that
affect the tone of your instrument.

WORKINGMAN'S 2X10C - 5-BAND GRAPHIC EQ SECTIONOVERVIEWYour Workingman's 2x10C comes equipped with a 5-band graphic equalizer for versatile, active tone shaping
in an easy-to-use interface. Each of the five bands utilizes a slider control that can cut or boost its designatedfrequency range by up to 15db. For each EQ control, sliding the knob up will boost its designated band or
frequency, while sliding the knob down will reduce its designated frequency. Each control also has a flat(center-click) position that defeats its function. In other words, when an EQ control sits in the center-click
position, that EQ control does not cut or boost anything − it is inactive.
The center frequencies for each EQ control are as follows:
Bass:
Lo Mid:Mid:
Hi Mid:Treble:80 Hz
160 Hz400 Hz800 Hz3kHz

USING THE 5-BAND
5 BAND GRAPHIC EQ SECTIONBASS CONTROLThe Bass Control (band 1) itself, as stated above, works in a range that will be useful under most "normal"
conditions. Its musical use might be thought of as a "fatness" control. The overall "punch" of your instrument,from your low E-string on up to about two octaves (midway up the G-string), will be determined with thiscontrol. With passive instruments, this will be straightforward. With active instruments having bass-boost
controls, more exploration will be worthwhile. (Some active tone circuits have boost-cut controls such as
Tobias, Sadowsky, etc. Others such as Music Man, may be straight boost controls. Take a little time and see
how the EQ onboard your bass interacts with the Bass Control on the 2x10C.)
MIDRANGE CONTROLSThe Midrange Controls (bands 2, 3, & 4 - Lo Mid, Mid, and Hi Mid respectively) operate in a crucial area formost instruments. Many basses, particularly with roundwound strings, can have a very "honky" or nasal
sound. Locating and cutting the correct midrange frequencies can go a long way toward smoothing out yourtone. But it's worth remembering that what sounds best when listening to your tone by yourself may not be
what works best in a band or recording. Sometimes that objectionable quality may be just the right "hair" on
your note to still have an audible presence in the track or onstage.
6 • WORKINGMAN’S 2X10C OWNER’S MANUAL

Some hints: If you need to "cut through" the band a little more, try boosting the Mid Control. If you like amore transparent or "scooped" sound, try cutting the Hi Mid Control. The midrange controls are also especially
useful in controlling fretless basses and their inherent qualities.
TREBLE CONTROLThe Treble Control (band 5) operates in a tonal area that extends through and beyond the usual "treble"
range. Boosting the control will open up the sound of a dull instrument, particularly in conjunction with thetweeter. However, this is also the range of string rattle, finger slides and pickup clicks. Again, we recommend
you experiment with the control alone with your instrument while finding your tone, and then listen again in aband context, both near to and away from your speaker system. Bass-oriented qualities like punch andfatness can be fairly well spread out. However, what most people know as treble, despite the broad dispersionof most tweeters, is a very directional quality. Spend some time exploring what you can hear in this area as
you move around.
EFFECTS BLEND CONTROLThe Effects Blend Control "blends" the signal sent from your instrument with the signal coming from an
outboard effects unit of your choice. With the Effects Blend fully counter-clockwise ("DRY"), no signal fromyour outboard effects unit will be heard. As you turn this control clockwise, more of the effect can be heard in
the overall sound. When the Effects Blend control is set fully clockwise ("WET"), no true or unaffected signal isheard other than what your outboard effects unit provides. If your outboard effects unit has a similar control,
adjust it to the fully clockwise ("WET") position. This will avoid any possible phasing problems.
The Effects Blend circuit is similar to that used on recording consoles with the effects loop on a "side chain"to the normal circuit. Unless the control is set to the full "wet" position, you will always get the full sound ofyour instrument AND get the diversity an effects unit offers. This circuit is also effective in reducing noise
generated by effects units because it is located after the gain stages in the preamp.
The Effects Blend control functions only when the Effects Loop is being used. It is activated when a 1/4"
phone plug is inserted into the Effects Receive jack (for more information, please see the heading titled"Effects Loop" in the "Rear Panel Features" section later in this manual).
VARIABLE LIMITER CONTROL (with defeat option)
The Limiter in the Workingman's 2x10C is designed to provide the user with maximum flexibility of control,
while at the same time provide protection for the power amplifier from clipping, a condition that can cause
damage to itself and the speaker system over time if allowed to occur.
The Limiter circuit is located after (post) the Master Volume and before (pre) the power amplifier, so theLimiter itself is driven by the Master Volume control. You can set the threshold of the Limiter with the Limiter
Control. Turning the control clockwise sets the threshold to increase the amount of limiting, while turning thecontrol counter-clockwise will decrease the amount of limiting. As always, your ears will help you determine
the right amount of limiting to use, as levels vary greatly from player to player due to playing style, output
levels of basses, EQ settings, and many other factors. This feature can also be helpful in preventing speakerdamage when running your system at high volumes.
NOTE: When listening to hear if there is distortion present in your signal, make sure you are not confusing
power amp distortion with preamp distortion. To make sure preamp distortion is not present, be sure to set
the Gain Control to where the Preamp Clip LED is not illuminating. Then you can make a clear
determination as to how best to set the Limiter.

WORKINGMAN’S 2X10C OWNER’S MANUAL • 7

DEFEATING THE LIMITER CIRCUIT
Regardless of where the Variable Limiter Control is set, you may defeat the Limiter circuit at any time bypulling out on the Limiter knob itself. (It doubles as an on/off switch for the Limiter.) To defeat the Limiter,
simply pull "out" on the knob of this control until you hear and feel a "click." To re-engage the Limiter, push
the control back in to its original position, and the Limiter circuit will reactivate at the threshold setting you
chose originally. This may be useful in determining just how much limiting is occurring in an "A/B" type of test.
You can also hear in an instant if your limiter is set to where it is actually stopping the power amp fromclipping, because if you suddenly hear distortion that wasn't there when the limiter was engaged, that's
exactly what's occurring. (This is especially key to remember when using your 2x10C with an extension
cabinet at high volumes.)
LIMITER ACTIVE LED
When the threshold (starting point) of the Limiter circuit is reached, the Limiter Active LED will light, indicatingthat the Limiter Circuit is active and helping to protect your power amplifier from clipping. The Limiter LED will
not illuminate when: a) the Limiter has been defeated by pulling out on the Limiter control; b) when playing at
levels not high enough to engage the circuit.
NOTE: If you have defeated the Limiter and you hear a loud, sharp distortion present in your sound − andthe Preamp Clip LED is not lighting up − re-engage the Limiter by pushing the Limiter control back in. If the
distortion goes away, you were probably clipping the power amp, which is not a good thing. Remember, theLimiter circuit is there to protect your amplifier from such a state of operation.
MASTER (VOLUME) CONTROLThe Master (meaning "Master Volume") control adjusts the level being sent to the power amplifier in yourWorkingman's 2x10C − it controls the overall volume of the unit. Turning the control counter-clockwise
reduces the overall level, while turning the control clockwise boosts the overall level.
Two notes: The Master control never affects the level present at the XLR or effects send jacks − it only affects
the level being sent to the power amplifier, and subsequently, your internal speaker system and extension
speaker output only. Also, losses caused by outboard effects units can be recovered by increasing the Master
control.
SPEAKERS ON/OFF SWITCHThis two-position switch controls the signal sent from the power amplifier to the speaker section of yourWorkingman's 2x10C and an extension speaker if connected (hence the term "speakers"). When set to the On(top) position (default setting from the factory), the Workingman's 2x10C will operate normally, and the soundof your amplified bass will be heard from the speaker section and any connected extension speaker. Whenset to the Speakers (bottom) position, that signal will be defeated regardless of the settings on the front
panel. This can be useful for silent practicing (in conjunction with the Headphones Jack, listed below), or for
defeating the audio while you re-patch cables or plug and unplug your instrument. This switch will not affectthe signal present at the various audio outputs (XLR, Effects Send, Tuner Out). It will also not affect the signal
present at the Headphone Jack.
NOTE: If the volume on your instrument is up, and your Gain and Master Volume controls are up, andespecially if you're seeing the Preamp Clip and Limiter Active LED's illuminate while you're playing… andyou can't understand why you're not getting any audible output from the Workingman's 2x10C, check theposition of this switch!

8 • WORKINGMAN’S 2X10C OWNER’S MANUALHEADPHONES JACK (stereo only)
By inserting a set of stereo headphones into this jack, you can monitor your sound more closely in a studiosituation, or practice silently (when the Speakers On/Off Switch is set to "Off") so as not to completely annoy
your neighbors. The headphone volume level is adjusted by the Master Volume. We suggest you begin with
the Master Volume full off (counter-clockwise), then slowly bring up the volume to the desired level. If you
hear some distortion in your headphones that isn't present through your speaker system, turn down the
Master Volume. You are probably overdriving your headphones and could ruin them, to say nothing of what
you may be doing to your ears.
Any impedance headphones will work. However, optimum impedance is 75 ohms.
POWER ON/OFF SWITCHThis switch turns the complete unit on or off. Setting the switch upwards to the "On" position turns on theunit, and the switch itself will illuminate in red. Setting the switch downwards to the "Power" position will turnthe unit off, and the red light inside the power switch will turn off as well.

WORKINGMAN'S 2X10C - REAR PANEL FEATURES (chassis and cabinet)
EFFECTS LOOP (for outboard effects devices)
As mentioned previously in the "Effects Blend Control" section of the manual, the Effects Blend circuit in yourWorkingman's 2x10C is similar to that used on recording consoles, with the effects loop on a "side chain" tothe normal circuit. Unless the Effects Blend control is set to the full "wet" position, you will always get the fullsound of your instrument AND get the diversity an outboard effects unit offers. Use of the effects loop will
reduce the noise generated by outboard effects units (as compared to using the effect between your instrument and the input jack, though many people use it in this fashion anyway). This is because the loop is after
the preamp gain stages.
The Effects Loop is compatible with most individual or multi-effect outboard effects devices. Many effects
devices on the market have input level adjustments. For instance, some units have a switch that you can set
for either -20 dB or +4 dB. In all cases, these should be set for 0 dB (if available) or +4 dB. The level goingto your effect is controlled by the Gain control on the front panel.
NOTE: The Effects Loop is used in conjunction with the Effects Blend control on the front panel. When the
Effects Blend Control is in the full counter-clockwise ("DRY") position, no effects will be heard. This isnormal.
CONNECTING AN OUTBOARD EFFECTS DEVICE TO THE WORKINGMAN'S 2X10C EFFECTS LOOP
Obtain two high-quality shielded patch cables, preferably as short as possible. Route them in the most direct
way possible. (Running patch cables over the top of the Workingman's 2x10C − as with any amplifier − caninduce hum in the cables and is not recommended.) Take one cable and connect it from the Effects Send
jack on the Workingman's 2x10C to the input of your outboard effects device. Take the second cable andconnect it from the output of your outboard effects device to the Effects Return jack on your Workingman's
2x10C. To set levels, follow the instructions as previously listed in the "Effects Blend Control" heading under"Front Panel Features."

WORKINGMAN’S 2X10C OWNER’S MANUAL • 9

EFFECTS SENDThis jack's primary function is to send a post-EQ signal to an outboard effects device for use in the
Workingman's 2x10C Effects Loop. However, it can also be used as:
1. A line level output for use in conjunction with an additional (slave) power amp − such as SWR's
Power 750.
2. An unbalanced output suitable for recording or live mixing board purposes.
The output impedance of the Effects Send jack is 100 Ohms.
EFFECTS RECEIVE
This jack's primary function is to complete the Effects Loop circuit by routing the post-outboard-effects device
signal back into the power amp of the Workingman's 2x10C, where it can be blended back in with the original
signal by using the Effects Blend control on the front panel. However, it can also be used as:
1. A power amp input jack. If, for some reason, you wished to bypass the entire front end and use theWorkingman's 2x10C strictly as a powered monitor, you could take the output of whatever line-level audio
source you wished and connect it to this jack. Then, set the Effects Blend control to the full clockwise("WET") position. Use the Master control to set the overall level, and your Workingman's 2x10C is now apowered speaker cabinet.
2. An input for pre-recorded music, for playing along and practicing purposes. To accomplish this, insert a
CD player or other sound source into the Effects Receive jack. (It must be a MONO 1/4" plug that goes
into this input, so you'll have to use a stereo-to-mono cable adaptor of some kind.) You can adjust thelevel of recorded music versus the "live" sound of your instrument by using both the Effects Blend control(the more clockwise the control, the more pre-recorded music signal you'll hear) and the volume controlof your CD (or other) audio source. The mixed sound will be heard through your speaker(s). Besides prerecorded music, this is also an excellent way to practice along with a drum machine.
Input impedance of the Receive jack is 27k Ohms minimum.
NOTE: Inserting a plug into the Effects Receive jack activates the Effects Blend control. The control receives
this command through the ground created by the phone plug making contact with the jack. The plug must
be a mono plug (tip and ground). If you have a stereo plug only, it will be necessary to tie the ring and theground together.
COMBO CABINET JACK/PLUG ASSEMBLY
The black cable/plug assembly that comes out of the cabinet and is connected to the rear panel (near the
text marked "Combo Cabinet") is the means by which the power amp in your Workingman's 2x10C sends its
signal to the speaker complement. Both the plug and the jack it connects to are a special size, slightly lessthan the typical 1/4" found on instrument and speaker cables alike. SWR strongly recommends that you not
disconnect this cable, as it is not meant to be (nor can it be) used as either an extension speaker output or a
speaker cabinet input. For proper connection of an extension speaker to your Workingman's 2x10C, please
read below.

EXTENSION SPEAKER OUTPUT SECTION
This section of the manual will deal with the proper connection of extension speaker cabinets to the power
amplifier in the Workingman's 2x10C. We recommend that you read this section carefully, as power
amplifiers, impedance and speaker cabinets are all crucial in determining how best to operate your new
Workingman's 2x10C with an extension speaker cabinet.
10 • WORKINGMAN’S 2X10C OWNER’S MANUALHOW IMPEDANCE AFFECTS POWER RATINGS
People often have questions about impedance. What is it? The root of the word "impedance" is the verb
"impede," which means to block or resist. That's what impedance is − resistance to power.
Solid-state power amps do not have a pre-determined impedance. They deliver power at whatever impedance
the speaker cabinet tells it to. That's why you hear the term "slave amp" − amplifiers only do what they're told.
So if someone tells you that they have a "4 ohm power amp," their terminology and understanding of theconcept is way off the mark.
Unlike power amps, every speaker cabinet has a pre-determined impedance rating measured in "ohms." In
most cases this rating is either 4 or 8 ohms (though there may still be some old 2 ohm creakers out there).
The higher the impedance of the speaker cabinet, the more resistance to power it will offer. The lower the
resistance of the speaker cabinet, the less resistance to power it will offer. In other words, HIGHERIMPEDANCE MEANS LESS POWER CAN ENTER THE SPEAKER CABINET. LOWER IMPEDANCE MEANS MORE
POWER CAN ENTER THE SPEAKER CABINET.
You may be thinking that you've found the solution to the universe − just use speaker cabinets with really low
impedances and you can get skull-crushing power out of your amplifier, right? Wrong. There's a catch. Poweramps have limits as to how low an impedance they can drive safely. This is what's known as an amplifier's"Minimum Impedance Rating." If you try and operate a power amp below its minimum impedance rating, it
will give you lots and lots of power for about five minutes…and then overheat, short out and fail completely.
In other words, THE LOWER THE OPERATING IMPEDANCE OF THE AMPLIFIER, THE HOTTER IT WILL GET.
WORKINGMAN'S 2X10C POWER AMPLIFIER MINIMUM IMPEDANCE RATINGS
Here's what this means to the power amp in the Workingman's 2x10C. Like most combos, the Workingman's
2x10C contains a mono power amp, which makes things fairly simple. The operating impedance of theinternal speaker system in your Workingman's 2x10C is 8 ohms, so that's your starting point. When you
add an extension cabinet to the Workingman's 2x10C, invariably the total operating impedance of theamplifier will get lower. The Minimum Impedance Rating of the Workingman's 2x10C is 4 ohms. Thismeans that you can safely connect to the extension speaker jack:- One 8 ohm speaker enclosure (4 ohms total impedance)- Two 16 ohm speaker enclosures (4 ohms total impedance)
Operation at 4 ohms will provide 400 watts, a nice increase over the 260 watts available when used in astand-alone configuration. But as previously mentioned, the lower the operating impedance, the hotter theamplifier will run. An amp that runs at or near its minimum impedance all the time may wear the life of its
components faster than normal. Furthermore, damage to the power amplifier section of the Workingman's
2x10C may occur if speaker enclosures with total impedances less than the minimum loads listed above areconnected to the speaker output section. The owner's manual that came with your speaker cabinet should
state its total impedance. On SWR speaker enclosures, the total impedance is generally indicated on the
speaker's input panel.
So how do you determine the total impedance of two cabinets hooked up to your Workingman's 2x10C?
Here's a quick key of the most common setups:
One 8 ohm enclosure (internal) + one 8 ohm enclosure (extension) = 4 ohms total impedanceThis is OK. However:One 8 ohm enclosure (internal) + one 4 ohm enclosure (extension) = 2.6 ohms total impedance
WORKINGMAN’S 2X10C OWNER’S MANUAL • 11

This is NOT OK! The power amp will eventually overheat and fail.
Here's another formula: To figure out the total impedance of two or more cabinets of equal value hooked up
in parallel, divide the impedance of one cabinet by the number of cabinets:
Impedance of one cabinet / number of cabinets = total impedance(For an even more in-depth discussion of impedance and power rating issues, go to the SWR Website atwww.swrsound.com, click on "Support", then click on "Technical Articles," then click on "Plug and Play - Setup
Tips for Amps and Speakers"-an article by SWR founder Steve Rabe that ran in the August '92 issue of Bass
Player Magazine.)
WORKINGMAN'S 2X10C POWER DELIVERY CAPABILITIES (Power Ratings)
After determining how the extension cabinet you wish to use affects the total operating impedance, you needto take into account the power handling capabilities of that speaker cabinet as compared to what theWorkingman's 2x10C can deliver at that operating impedance. Those ratings are as follows:
260 Watts @ 8 ohms (internal speaker system only)
400 Watts @ 4 ohms (internal system with one 8 ohm extension cabinet)
So if you use an 8 ohm extension speaker cabinet along with your internal speaker system, it will get up to
200 watts of power (400 watts split in half), and more during transient peaks. Make sure your extension
speaker cabinet can handle the power.
There is also the situation known as underpowering your speakers. This is caused when the power amp, in
the process of trying to drive one or more speaker cabinets, reaches its limit and goes into clipping. That"clipped" waveform (or "square wave") will quickly heat up the voice coils in speakers, and if operating
continually while clipping, eventually will burn the voice coils and cause the speakers to fail. Speakers abusedin this fashion are easy to detect and generally not covered under a manufacturer's warranty. (Remember,engaging the Limiter will not allow the power amp to clip, so we recommend that you not disengage theLimiter when running at low total impedances in general.)Also be aware that when running the amp at 4 ohms, you are operating at the maximum capacity of thepower amplifier. With extreme settings on the Gain and Master controls and the Limiter circuit disengaged,
you may hear audible clipping of the power amp. If so, you have exceeded the maximum capacity of thepower amp. POWER AMP CLIPPING CAN CAUSE DAMAGE BOTH TO ITSELF AND YOUR SPEAKER CABINETS.
Either re-engage the Limiter (by pushing in on the Limiter control) to help smooth out the peaks, or back off
on the Gain and Master controls.
Remember, it's always better to have a little too much power than just barely enough. If you find yourself
constantly wanting more power than the Workingman's 2x10C provides, either:a) tell your bandmates to turn downb) tell the monitor engineer to turn you upc) (better option) take the time to investigate getting an external power amp for the additional speakercabinets to supplement your rigd) (best option) investigate getting a larger rig (perhaps something modular, with a large head and two
speaker cabinets) for those gigs where more power and volume is needed

12 • WORKINGMAN’S 2X10C OWNER’S MANUALNOTE: The frequency response of the Workingman's 2x10C is far greater than usually found in musicalinstrument amplifiers (20 Hz to 40K Hz). This was engineered in order to give the bass player the same
punch and clarity on stage as found in the studio or concert P.A. systems. Therefore, it is doubly importantthat you are aware of the impedance and power rating of the extension speakers that you intend to use,
and that they are compatible with the Workingman's 2x10C. Speakers that have been overdriven are easy
to detect and generally do not fall under a manufacturer's warranty.
EXTENSION SPEAKER OUTPUT JACKS
One 1/4" phone jack is provided for connection of an extension speaker to the Workingman's 2x10C. Only
SPEAKER CABLE of 18 gauge or heavier (the heavier the cable, the lower the gauge) should be used toconnect an extension speaker to your Workingman's 2x10C. Do not use shielded instrument cable in thisapplication, as this can result in intermittent power loss, cause your amp to oscillate and damage itself
and/or your speakers, and render the cable useless for any purpose.
Recommended SWR Speaker enclosures for use as an extension cabinet with the Workingman's 2x10C
include:Workingman's 2x10T
Workingman's 1x15T
Workingman's 4x10T
Big Ben (1x18 sub)SPEAKER FUSE
The speaker fuse is provided to protect your speakers in the unlikely event of a power amp failure or toprotect your power amplifier from incorrect speaker impedances or hookups. Size and rating of the fuse is
3AG, 10 amp, fast-blo. Do not defeat the purpose of this feature by using a higher rated fuse as it candamage your amplifier and void your warranty.
The fuse can open as a result of a fault in the speaker cable, the speakers themselves, or the power amp
being sent well into clipping. With this in mind, it is wise to carry extra fuses at all times.
INTERNAL SPEAKER MODE SWITCH
Located on the small panel on the rear of the Workingman's 2x10C's speaker cabinet, this two-position switch
controls the signal sent from the power amplifier to the internal speaker cabinet only. When set to the On(top) position (default setting from the factory), the Workingman's 2x10C will operate normally and the soundof your amplified bass will be heard from the internal speaker cabinet. When set to the Off (bottom) position,
the internal cabinet's signal will be defeated, but any extension speaker connected will still be audible. This
could be extremely useful if you wish to use the amplifier in your 2x10C in a head-only configuration, at which
point you could connect any speaker cabinets to the amplifier just so long as the resulting total impedance
was no lower than 4 ohms. This can also be useful for silent practicing (in conjunction with the Headphones
Jack, listed previously), or for defeating the audio while you re-patch cables or plug and unplug yourinstrument. This switch will not affect the signal present at the various audio outputs (XLR Out, Effects Send,
Tuner Out).
In some ways, this switch is similar to the Speakers On/Off Switch on the front panel, but remember: theSpeakers On/Off Switch on the front panel will defeat all speakers connected to the amplifier, while theInternal Speaker On/Off Switch will only defeat the internal speaker system. But since either one can defeat
the internal speaker system, they can override each other when set to the bottom position. Make sure thatboth switches are in the "On" position if you want to hear sound from your internal speaker system.

WORKINGMAN’S 2X10C OWNER’S MANUAL • 13

NOTE: One last time − if the volume on your instrument is up, and your Gain and Master Volume
controls are up, and especially if you're seeing the Preamp Clip and Limiter Active LED's illuminate
while you're playing…and you can't understand why you're not getting any audible output from theWorkingman's 2x10C, check the position of this switch!
TWEETER MODE SWITCH
Also located on the small panel on the rear of the Workingman's 2x10C's speaker cabinet, this three-position
switch gives you three different options for operation of the piezo tweeter. In the Full Range (top) position,
the tweeter will reproduce an unattenuated signal of every frequency it sees (roughly 2 kHz up to 15 kHz,
within certain tolerances). The -6db (bottom) position reduces the level of the tweeter's outputs by 6
decibels, which to the ear sounds roughly as if cut in half compared to the Full Range position. The Off(middle) position will defeat the tweeter's output entirely.
Try starting with the switch in the Full Range position. If this sounds too "treble-y" to your ear and you stillwant the touch of crispness that a tweeter provides, you can: a) set the Tweeter Mode Switch to -6db; b)
adjust the Treble tone control on the front panel; c) a combination of both. Those users with a predisposition
against a tweeter in general have the option to turn it off and leave it off, but we recommend trying it out
first.
LINE FUSE (A/C OR MAINS FUSE)
This fuse is provided to protect the internal electronics against power surges, etc. It also protects the unit
against itself should one of the internal components fail. If this fuse should open, replace it with the same
type of fuse and rating. Do not defeat the purpose of this feature by using a higher rated fuse as it can void
your warranty.
Proper size of the AC fuse for all countries is 3AG. Proper rating of the fuse is as follows:
United States: 7 amp slo-blo
Japan: 8 amp slo-blo
Europe (230V-240V): 4 amp slo-blo
A/C CORD RECEPTACLE
This receptacle accepts a standard A/C power cable (supplied with the Workingman's 2x10C in the UnitedStates) used with almost all current musical, professional and household electronic devices. We recommend
great care when packing up. If your unit is not in a rack case, put the cable in your instrument or accessory
case or leave it attached and looped around one of the rack handles. If it does become misplaced, areplacement cable can be purchased at almost any music or computer store.
NOTE: The rating for this cable is 3 conductor, 10 amperes minimum. Look for this rating on the cable.
Make sure the cable is plugged in all the way in both the amp and the wall socket.
REMOVABLE CASTER WHEELSYour Workingman's 2x10C comes with a set of four, heavy-duty, removable caster wheels. SWR uses only
closed shaft sockets so as to prevent air leaks or unwanted noise when the enclosure is in use. To install thecaster wheels on your Workingman's 2x10C, carefully turn the unit upside down (or on its side) so that thecaster base/sockets are visible. Insert the shaft of each caster wheel into a socket on the underside of theWorkingman's 2x10C. When all four wheels are firmly in place, return the Workingman's 2x10C to its uprightposition and you're ready to roll. You can leave the casters in place during performance, but it's
recommended that they be removed so as to allow the Workingman's 2x10C's speaker compartment to
14 • WORKINGMAN’S 2X10C OWNER’S MANUAL

couple to the floor, which can be helpful in extending its bass response. Please note that the ball bearing
type caster wheels provided with your Workingman's 2x10C may require periodic replacement depending on
usage and care. Replacement caster wheels can be purchased from the SWR Service Department.

WORKINGMAN'S 2X10C SUGGESTED SETTINGS
The following pages include examples of tone control options for various styles of music. These settings areintended for use as a starting point for dialing in your own individual sound, so feel free to make adjustments
based on your own playing style, instrument and speaker cabinet configuration.

(continued on page 16)

WORKINGMAN’S 2X10C OWNER’S MANUAL • 15

SUGGESTED SETTINGS (CONTINUED)

16 • WORKINGMAN’S 2X10C OWNER’S MANUALWORKINGMAN’S 2X10C LIMITED WARRANTY
The WORKINGMAN’S 2X10C from FMIC is warranted to the original consumerpurchaser for ONE YEAR fromthe date of purchase, against defects in materials and workmanship and provided that it is purchased froman Authorized SWR Dealer. This warranty applies only to products purchased in the USA or Canada.
This warranty is VOID if the unit has been damaged due to accident, improper handling, installation oroperation, shipping damage, abuse or misuse, unauthorized repair or attempted repair, or if the serial
number has been defaced or removed. FMIC reserves the right to make such determination on thebasis of inspection by an Authorized FMIC Service Center.
All liability for any incidental or consequential damages for breach of any expressed or implied
warranties is disclaimed and excluded herefrom.
Some states do not allow limitations on how long an implied warranty lasts, or the exclusion orlimitation of incidental or consequential damages, so that the above exclusion may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which vary from state
to state.

SHOULD YOUR SWR AMPLIFIER REQUIRE SERVICE OR REPAIR,
PLEASE USE THE FOLLOWING PROCEDURE:

1
2

Locate your original receipt showing date of purchase, model and serial number.
Determine the closest Authorized FMIC Service Center to your location. The fastest way to get a complete list of
Authorized FMIC Service Centers is on the web, at:
http://www.mrgearhead.com/faq/allservice.html
You can also get this information by calling FMIC Consumer Relations at (480) 596-7195.

3

To receive warranty service, return the complete product to an Authorized FMIC Electronics Service Center, with proofof purchase, during the applicable warranty period. Transportation costs are not included in this Limited Warranty.

4

Defective products that qualify for coverage under this warranty will be repaired or replaced, at FMIC's discretion, witha like or comparable product, without charge.

For a complete list of Authorized FMIC
Service Centers, and the latest SWR
news, interviews, and more,check out our website:

swrsound.com

WORKINGMAN’S 2X10C OWNER’S MANUAL • Part # 320044 • 11/02© 2002 SWR

SWR
8860 E. Chaparral Rd. Suite 100
Scottsdale, AZ 85250-2618 USA
PHONE: (480) 596-9690
FAX: (480) 367-5262
EMAIL: custserve@fenderusa.com
WEB: swrsound.com