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AMP 50

Stereo Power Amplifier

Congratulations

 on your purchase of the AudioSource® AMP 50.

 

Please take a few moments to read this entire manual, and be sure to 

retain this document for future reference. Please read and observe all 

safety instructions detailed on page 2.
NOTE: If any part of this product is damaged or missing, please call your 

dealer or AudioSource® directly at 1.877.715.5439 or 503.914.4688.
Please read your warranty and retain your receipt and original carton

for possible future use.
For more information about AudioSource® electronics, speakers and

 

accessories please visit www.audiosource.net

FEATURES:

Separate Bass & Treble Controls

Front Panel Volume Controls

Signal Sensing “Power On / Off”

Mini Form Factor / Light Weight

SPECIFICATIONS

Stereo (8 ohm):

25W per channel, 20Hz ~ 20kHz, <1% THD+N*

Stereo (4 ohm):

30W per channel, 20Hz ~ 20kHz, <1% THD+N*

 

Bridged Mono (8 ohm):

N/A

Frequency Response:

10Hz ~ 20kHz, +0dB/ -3dB

Signal to Noise Ratio:

100dBA

Channel Separation: 

65dB @ 1kHz

Input Sensitivity:

900mV input for rated output 

into 8 ohms

 AC Power Consumption: 250W maximum

Net Weight:

2.1lbs / 1kgs

8.5” (216mm)

6”

(153mm)

2.75”

(70mm)

AMP 50

Power

Auto On/Off

Bass

Treble

Volume

MIN

MAX

MIN

MAX

MIN

MAX

Stereo Power Amplifier

0

0

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13970 SW 72nd Ave. Portland, OR 97223 • 503.914.4688 • www.audiosource.net

AMP 50 Owners Manual

AMP 50

OWNER’S MANUAL

*Peak Power

 2 x 15 Watts RMS @ 8 Ohms

50’ or less - 16 Gauge 2-Cond. CL3 Rated
50’ - 150’ - 12 Gauge 2-Cond. CL3 Rated
150’ - 200’ - 10 Gauge 2-Cond. CL3 Rated

For stereo output connect the speaker’s positive (red) terminal to the amplifier’s

positive (red) terminal, and the speaker’s negative (black) terminal to the 

amplifier’s negative (black) terminal for each Right and Left speaker. 

NOTE: To prevent sonic degradation in your speaker installation, total speaker

wire resistance should be kept below 0.5 ohms. This table lists recommended 

speaker wire gauge versus wire run length.

SPEAKER TERMINALS

CAUTION

RISK OF ELECTRICAL SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER. NO 

USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL!

Limited Warranty

AudioSource®  warrants  its  amplifier  products  against  defects  in  materials 

and workmanship for a limited period of time. For a period of two years from 

date of original purchase, we will repair or replace the product, at our option, 

without charge for parts and labor. Customer must pay all parts and labor 

charges after the limited warranty period expires. The limited warranty period 

for factory refurbished products expires after ninety (90) days from date of 

original purchase. 

This limited warranty applies only to purchases from authorized AudioSource® 

electronics  retailers.  This  limited  warranty  is  extended  only  to  the  original 

purchaser and is valid only to consumers in the United States. 

Consumers are required to provide a copy of the original sales invoice from 

an authorized AudioSource® dealer when making a claim against this limited 

warranty. This limited warranty only covers failures due to defects in materials 

or  workmanship  that  occur  during  normal  use.  It  does  not  cover  failures 

resulting from accident, misuse, abuse, neglect, mishandling, misapplication, 

alteration,  faulty  installation,  modification,  service  by  anyone  other  than 

AudioSource®,  or  damage  that  is  attributable  to  Acts  of  God.  It  does  not 

cover  costs  of  transportation  to  AudioSource®  or  damage  in  transit.  The 

customer should return his defective product, freight prepaid and insured, to 

AudioSource® only after receiving a Return Authorization. 

This warranty will become void if the serial number identification has been 

wholly or partially removed, altered or erased. Repair or replacement under 

the terms of this warranty does not extend the terms of this warranty. Should 

a product prove to be defective in workmanship or material, the consumer’s 

sole  remedies  will  be  repair  or  replacement  as  provided  under  the  terms 

of this warranty. Under no circumstances shall AudioSource® be liable for 

loss or damage, direct, consequential or incidental, arising out of the use of 

or inability to use the product. There are no express warranties other than 

described above.

 

REAR PANEL CONTROLS

8. 

Speaker Zone A Output

Speaker output terminals for zone A.

9.

Speaker Zone B Output

Speaker output terminals for zone B

7. 

 Power Cord & Fuse Holder

This amplifier is configured for operation at 115V. (North America) A fuse

in the integrated holder provides safety protection from fault conditions. 

Replace fuse with 5 x 20mm T4A 250V. 

5. 

RCA Input

This is the primary input connector used by most home audio sources  

6.

 Mini Stereo Input

This is the primary input connector used by most portable audio source

as well as most computers

10.

Auto-On / Normal Switch

Changes amplifier power on function from manual to auto sensing.

13970 SW 72nd Ave. Portland, OR 97223 • 503.914.4688 • www.audiosource.net

2

13970 SW 72nd Ave. Portland, OR 97223 • 503.914.4688 • www.audiosource.net

AMP 50 Owners Manual

AMP 50

OWNER’S MANUAL

1.   

Power Switch

 Switches the AMP 50  on or off. A red LED indicates connection to AC power

while in standby mode. 

2.  

Bass Adjustment Control

3.  

Treble Adjustment Control

4.  

Volume

      Adjusts amplifier volume.      

FRONT PANEL CONTROLS

3

2

1

4

6

8

9

5

13970 SW 72nd Avenue   Portland, Oregon 97223

503.914.4688   Fax: 503.746.5224   Support: 877.715.5439

www.audiosource.net  support@audiosource.net

Left Input

Right Input

Stereo

Input

FUSE 4A/250V

AC 18V

AUTO ON

NORMAL

AUTO

10

7

Figure 2. Rear Panel

Figure 1. Front Panel

AMP 50

Power

Auto On/Off

Bass

Treble

Volume

MIN

MAX

MIN

MAX

MIN

MAX

Stereo Power Amplifier

0

0

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