STEREO POWER AMPLIFIER

RPA-MG3000

Safety Precautions
Operating Environment
Operating environment temperature and humidity: +5 °C to+35 °C (+41 °F to +95 °F); less than 85 %RH (cooling vents notblocked)Do not install this unit in a poorly ventilated area, or in locations
exposed to high humidity or direct sunlight (or strong artificial
light)CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO

NOT REMOVE CHASSIS. NO USER-SERVICEABLEPARTS INSIDE. REFER SERVICING TO QUALIFIEDSERVICE PERSONNEL.

WARNING
This equipment is not waterproof. To prevent a fire or shock
hazard, do not place any container filled with liquid near
this equipment (such as a vase or flower pot) or expose it
to dripping, splashing, rain or moisture.

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE OF NON-INSULATED“DANGEROUS VOLTAGE” WITHIN THE PRODUCTS ENCLOSURE THAT MAY BE OF
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.

POWER-CORD CAUTION

Handle the power cord by the plug. Do not pull out the plugby tugging the cord and never touch the power cord whenyour hands are wet as this could cause a short circuit or electric
shock. Do not place the unit, a piece of furniture, etc., on the
power cord, or pinch the cord. Never make a knot in the cord ortie it with other cords. The power cords should be routed suchthat they are not likely to be stepped on. A damaged power
cord can cause fire or give you an electrical shock.
Check the power cord once in a while.

THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT
OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE LITERATURE
ACCOMPANYING THE UNIT.

WARNING
Exposure to extremely high noise levels may cause apermanent hearing loss.
Individuals vary considerably to noise induced hearing loss
but nearly everyone will lose some hearing if exposed to
sufficiently intense noise for a sufficient time.

European model only

If you want to dispose this product, do not mix it with general household waste. There is a separate collection
system for used electric products in accordance with legislation that requires proper treatment, recovery andrecycling.

Private households in the member states of the EU, in Switzerland and Norway may return their used electric products free ofcharge to designated collection facilities or to a retailer (if you purchase a similar new one).
For countries not mentioned above, please contact your local authorities for the correct method of disposal.
By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery and recycling and thus
prevent potential negative effects on the environment and human health.

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Contents
Chapter 1

Introduction

Chapter 3

Part Names

Check included items................................................................. 4

Front panel...................................................................................10

Installing this product................................................................ 4

Rear panel.....................................................................................11

Regarding installation................................................................ 4

Chapter 2

Chapter 4

Connections

How to Operate

Playback steps.............................................................................13

Connections diagram ................................................................ 5

Chapter 5

How to connect the speaker cords........................................ 8

Other

Troubleshooting.........................................................................14

How to connect XLR cables...................................................... 8Care and maintenance.............................................................14

How to connect audio cords.................................................... 9Specifications..............................................................................15

How to connect the power cord............................................. 9

Warranty and after sales service...........................................16

3

Chapter 1

Introduction

Check included items

Installing this product• Power cord × 1• Be sure to install this product on a flat, stable surface.

• DC cord (MAIN) × 1• Do not install this product in the following locations:• DC cord (SUB) × 1—— On top of a television (the image may warp)• Mini plug connection cable—— Near a cassette deck or other magnetism emitting device (the• Operation manual (this book)audio may be adversely affected)—— In a location hit by direct sunlight—— In a moist location—— In high or low temperature locations—— In a location with vibration—— In a location with much dust or tobacco smoke—— In kitchens or other locations where fumes are emitted andoil is used

Regarding installation
Caution• Never place items on top of this product, cover it with a sheet,or use it when its heat radiation is obstructed. Abnormally hightemperatures may damage the product.

4

Connections

Chapter 2

Connections diagram
Important• When connecting devices or making changes, be sure to turn the POWER switch OFF and disconnect the power cord from theelectrical outlet. Plug in the power cord last.
• If an extremely loud signal is input to this product, there is a danger that noise will be generated and cause damage. In such a case,lower the input signal level.
• Use only the included DC cords for the connection between the amplifier and power supply. Do not use any other cords. Be careful not
to mistake the MAIN DC cord and the SUB DC cord.

■■ When STEREO mode
• Set the 8 SPEAKERS selector switch to [STEREO]. ( page 12)• When a playback device is directly connected to the product, the volume of the product can be adjusted by connecting the volume
controller (H-VC5 or H-VC1000) (sold separately) to the SPEC-VOL CONT terminal. Set the 3 GAIN selector switch to [SPEC-VOL]. (page 12)• When a control amplifier is connected to the product, set the 3 GAIN selector switch to [MAX] or [-6 dB]. ( page 12)
Speaker system
R (right side)
To the speakerterminals

To the balanced
output terminals

To the audio output
terminal

L (left side)
To the speakerterminals

Control amplifier, etc

H-VC5 or H-VC1000

To AC IN

To the electrical outlet• Depending on the Control amplifier used, there may be a caution regarding simultaneously connecting RCA and XLR, so refer to theoperation manual of the respective Control amplifier.

5

Chapter 2

Connections■■ When MONO mode (mono connection)• Set the 8 SPEAKERS selector switch to [MONO L]. ( page 12)• When a playback device is directly connected to the product, the volume of the product can be adjusted by connecting the volume
controller (H-VC5 or H-VC1000) (sold separately) to the SPEC-VOL CONT terminal. Set the 3 GAIN selector switch to [SPEC-VOL]. (page 12)• When a control amplifier is connected to the product, set the 3 GAIN selector switch to [MAX] or [-6 dB]. ( page 12)• For this connection, always connect a speaker to the speaker L terminal. No sound will be output from the speaker R terminal.
Speaker system
To the speakerterminals

To the balanced
output terminals

To the audio output
terminal

Control amplifier, etc

H-VC5 or H-VC1000

To AC IN

To the electrical outlet* Depending on the control amplifier used, there may be a caution regarding simultaneously connecting RCA and XLR, so refer to theoperation manual of the respective control amplifier.

6

Chapter 2

Connections■■ When MONO x 2 mode (bi-amplifier connection)• Set the 8 SPEAKERS selector switch to [MONO (BI-AMP)]. ( page 12)• When a playback device is directly connected to the product, the volume of the product can be adjusted by connecting the volume
controller (H-VC5 or H-VC1000) (sold separately) to the SPEC-VOL CONT terminal. Set the 3 GAIN selector switch to [SPEC-VOL]. (page 12)• When a control amplifier is connected to the product, set the 3 GAIN selector switch to [MAX] or [-6 dB]. ( page 12)
Speaker system

HIGH
LOW

To the speakerterminals

To the balanced
output terminals

To the audio output
terminal

Control amplifier, etc

H-VC5 or H-VC1000

To AC IN

To the electrical outlet* Depending on the control amplifier used, there may be a caution regarding simultaneously connecting RCA and XLR, so refer to theoperation manual of the respective control amplifier.

7

Chapter 2

Connections

How to connect the speaker cords

How to connect XLR cables

The connection terminals are red for positive (+) and black forConnect the balanced output terminal on the device to the XLR

negative (–).

input terminal on the product.

1 Twist the wire.

Match the orientation of the XLR plug to the XLR input terminal

2

terminal until a click is heard.

on the product, and then push the XLR plug into the XLR input

Loosen the speaker terminal, and insert the speaker
cord.

LIN

E2

3 Once the speaker cord is inserted, tighten and secure

(XL

R)

the speaker terminal.
1

2

3

10 mm

When disconnecting an XLR plug, press the latch lever (the partwith “PUSH” inscribed on it) while pulling the cable. Use caution,
as forceful disconnection may damage the unit.

The connection terminals on this product are also compatible
with Y lug terminals and banana plugs.
Y lug terminals

LIN

E2

Banana plugs

CautionPress the latch lever
(XL

R)

Note
• The pin positioning of the XLR input terminal of this product is• Use speakers with nominal impedance of 4 Ω to 16 Ω.

depicted below. Confirm that the product to be connected is• Connect accurately the + and – terminals between the speakers

compatible with the pin positioning of this product. For further

and this product.

details, consult the operation manual included with the product• Do not allow unshielded center wire from the terminals to stick

to be connected.

out and make contact with each other. If the center wires touch
the device may break.
• Use sufficient current capacity speaker cord and be sure to

2

make connections that are not loose and do not short. Using

1

1: Ground
2: Hot3: Cold3

low current capacity connecting cords or making imperfect• The balanced output signal level of the source device (CDconnections may affect playback audio and can cause

player, DA converter, etc.) may be significantly larger than theoverheating or short circuits.

RCA unbalanced output, depending on the device. For this• High voltage is output from the speaker terminals. To avoid thereason, the signal level of balanced input on the product isdanger of electrical shock, be sure to unplug the power cord

dropped approximately 3 dB lower than the RCA unbalanced

before making speaker connections.

input. Depending on the connected device, playback may
occur at a volume lower than a device with an RCA unbalanced
connection, but this is normal and not a malfunction.

8

Chapter 2

How to connect audio cords

Connections

CautionConnect the RCA output terminal on the device to the RCA input• The power cord for this product is removable, but please refrainterminal on the product.

from using power cords other than the cord included (3P plugin socket type with electrical current capacity: 7 A).

How to connect the power cord
Once all connections have been made, connect the included

Notepower cord to the AC IN terminal of this product and to the• When not using this product for extended periods, be sure toresidential electrical outlet. Press firmly to push the plug all theturn the POWER switch OFF or unplug the power cord from theway in.

electrical outlet.
• Turn the POWER switch OFF before unplugging the power cord.
• The power consumption of this product varies greatly
depending on the volume level of the playback audio signal.
For satisfactory music playback, connect to an electrical outlet
with sufficient capacity. (Connecting to a low capacity electricaloutlet creates the danger that the connection will overheat.)* The plug type varies according to the region.

• If the residential power supply is cut off due to a power outage,
the state of this product will be as follows when power isrestored.
—— If the POWER switch is ON when power is restored" The product returns to its state prior to power restoration.
—— If the POWER switch is OFF when power is restored" The product is in the normal power OFF state.

9Chapter 3

Part Names
Front panel

1
1 ON indicator
Lit when the product power is turned on.
Change the illumination type by setting the DIMMER switch.
( page 11)

10

Chapter 3

Part Names

Rear panel■■ Power supply

1

2

3 4

5

1 POWER switch

4 DIMMER switch

Turns power ON and OFF.

Changes the illumination type of the ON indicator on the frontof the product. (For both the power supply and amplifier)2 AC IN terminal

ON : Lit in white light.

Connect the included power cord. ( pages 5 to 7, 9)

1/2 : Lit using white light. Slightly dimmer than ON.
OFF : Only the center of the ON indicator is lit using warm

3 Fuseyellow light.

The fuse may break if something abnormal occurs to the
product. Contact us if the fuse breaks. ( page 16)

5 DC OUT terminals
Connect the power supply to the amplifier using the included
dedicated cables.

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Chapter 3

Part Names■■ Amplifier
1

2

3

4

5

6

7

8
1 DC IN terminals

6 INPUT selector switch

Connect the amplifier to the power supply. (Using the

Switch the input terminals of this product.

dedicated cables.)LINE 1

product is connected to the RCA terminals.

2 SOUND MODE selector switch

LINE 1 (ATT) : Set this when the device connected to thisChanges the sound quality. Set the sound quality as desired.

product and you hear distortion due to, forexample, excessive input. This reduces the level

3 GAIN selector switchof the input signal by approximately 6 dB.

Switches the output gain of this product.
MAX

LINE 2: Select this setting when using a preamp. Switches: Set this when the device connected to thisproduct is connected to the XLR terminals.

the setting to the rated output.
-6 dB: Set this when the device connected to thisLINE 2 (ATT) : Set this when the device connected to this

: Switches the setting to the rated output minus

product and you hear distortion due to, for

6 dB.

example, excessive input. This reduces the levelSPEC-VOL : Select this setting when using the volumeof the input signal by approximately 6 dB.

controller (H-VC5 or H-VC1000).

7 Audio input terminals ( pages 5 to 7)

4 SPEC-VOL CONT terminal

LINE 1 : RCA-type input terminal.

Connect the volume controller (H-VC5 or H-VC1000).

LINE 2 : XLR-type input terminal (female).

5 Speaker terminal

8 SPEAKER selector switch
Switches the mode for the connection between this productand the speakers.
STEREO : Set this for use with an ordinary stereo (driving ofboth the L and R channels) connection. ( page 5)
MONO L, MONO (BI-AMP): Set this to use this product as a mono amplifier. Input
the INPUTS to the L channel. ( pages 6 to 7)

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How to Operate

Chapter 4

Playback steps
2

1 Turn on the power of the playback device.
2 Confirm that the volume of the device connected tothe product is set to its lowest setting, and then turnon the power of the product.
Check that the ON indicator on the body front panel is lit.

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Chapter 5

Other
Troubleshooting

If you think this product may be broken, check the following troubleshooting items. Some minor operational errors can make theproduct appear to be broken.
Potential causes other than this product should also be considered. Check the other devices being used as well as all simultaneously
operated electrical devices. If the following instructions do not help even on multiple inspections, contact us. ( page 16)
Issue
The power does not turn on.

There is no sound.

Cause/Treatment• Is the power plug disconnected from the electrical outlet?
→→ Correctly insert the power plug into the outlet.

page 9• Is the power plug disconnected from the AC IN terminal?
→→ Correctly insert the power plug.

page 9• If the power will not turn on even with correctly connecting the power plug, thefuse may be broken.
→→ Contact us for consultation.

page 16• Is the connecting cord disconnected from the terminal, or connected incorrectly?
→→ Correctly connect the cord.

pages 5 to 9

• Is the speaker cord disconnected from the terminal, or connected incorrectly?
→→ Correctly connect the speaker cord.

pages 5 to 8

• Is the terminal or connecting cord pin plug dirty?
→→ Wipe clean the terminal or plug.
• Is the GAIN selector switch of this product set to SPEC-VOL?
→→ Set it to the MAX or -6dB position.
Sound comes out of the speakers even • Immediately after turning off the power, sound may come out of the speakers
after turning off this product.
while the ON indicator is lit, but this is not a sign of breakage.
→→ When playback is finished, first turn the volume of the device connected tothe product all the way down and then shut off the power of this product.
The volume is low.

Reference• Is the GAIN selector switch set to -6 dB?
→→ Set it to MAX.

–

page 12–page 12Note
The product may not function properly due to external factors, such as static electricity. In this case, the product may once again
function properly if the power cord is unplugged and then plugged in again. If this does not solve the problem, please contact SPECCORPORATION.

Care and maintenanceFor daily maintenance, use a polishing cloth to lightly wipe the front panel of this product. If it is very dirty, use a soft cloth moistenedwith neutral detergent watered down to 1/5-1/6 concentration and wipe off the dirt, then wipe dry with a dry cloth.
If alcohol, thinner, petroleum ether or insecticide adhere to the front panel it may be damaged, so use caution. Whenever using premoistened wipe, be sure to completely read the warning instructions that come with the wipe.
Natural wood is used for the side panels and bottom panels of the product. Do not place it in direct sunlight or near a heater. The front
panel may become discolored, and the product may be warped due to the natural wood contracting.

14

Chapter 5

Specifications■■ Amplifier
Maximum output.................................300 W × 2 (4 Ω)Frequency response............................10 Hz - 30 kHz ±1 dB (6 Ω, 1 W)
Line input terminal..............................XLR input: 1
RCA unbalanced input: 1
Speaker terminal..................................1
External dimensions............................450 mm (width) × 180 mm (height) × 455 mm (depth)
Weight......................................................18.0 kg■■ Power supply, otherPower voltage........................................110, 120, 220, 230, 240 V AC, 50 Hz/60 Hz
Electrical consumption......................With no signal: 16 W, during maximum output: 550 W
External dimensions............................450 mm (width) × 180 mm (height) × 440 mm (depth)
Weight......................................................27.0 kg■■ Included items
Power cord..............................................1
DC cord (MAIN)......................................1
DC cord (SUB).........................................1
Mini plug connection cable..............1
Operation manual (this book).........1* Due to improvements the above specifications and external appearance may be changed without notice.

15

Other

Chapter 5

Other
Warranty and after sales service■ About Warranty■ Terms of Warranty

Make sure that the name of your distributor and the date ofpurchase are written in the warranty. Read it carefully, andthen keep it in a secure location. The warranty is valid for
one year from the date of purchase.

1. If this product malfunctions during use in accordance with the■ Malfunctions

2. If you cannot ask the store where you purchased it for repairs

manual, and during the warranty period, then please bring the
product and this warranty to the store where you purchased it.
It will be repaired free of charge.
(e.g. if you have moved or the product was a gift), please

If the product malfunctions in the course of normal use(use in accordance with the manual and safety precautions)
during the warranty period, then we will repair the productfree of charge. When you bring your product to the
distributor for servicing, be sure to bring the warranty withyou. See the guarantees in your warranty for details. We
will repair malfunctions occurring after the warranty period
has expired for a fee, in accordance with our servicing
regulations.
Please note that we cannot provide any warranty or
bear any liability for damage to any equipment that isconnected to the unit resulting from incorrect use.

consult with SPEC CORPORATION.
3. A fee will be charged for repairs in the following circumstances,even if it is during the warranty period.
(A) The product malfunctioned or was damaged due to user
error or unauthorized repair or modification(B) The product malfunctioned or was damaged due todropping, etc. after purchase(C) The product malfunctioned or was damaged due tofire, flooding, lightning and other weather phenomena,
pollution, salt damage, or the like(D) The product malfunctioned or was damaged due toother than normal use, such as long hours of continuouscommercial use

Contact Information(E) The main unit has been disassembled

SPEC CORPORATIONTEL: +81-3-3660-0303
FAX: +81-3-3660-0333
E-mail: info-ex@spec-corp.co.jp
URL : spec-corp.co.jp(F) The text of the warranty has been changed or overwritten(G) The malfunction was caused by another company’s
product
4. This warranty cannot be re-issued. Store it in a safe place, anddo not lose it.

WARRANTYE
L

RPA-MG3000 STEREO POWER AMPLIFIER

P
M

Name

Telephone

AddressA
S

Date of PurchaseWarranty Period (Main Unit Only)

One Year()

Distributor Name & Telephonefrom Date of Purchase

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4th FL.NIHOMBASHI NAKAYA BUILDING,12-12 NIHOMBASHIKOBUNA-CHO,CHUO-KU,TOKYO 103-0024,JAPAN

2020