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Item#: 9SIA24G0P58735

AudioSource AMP-100 Stereo Amplifier

  • 2 channel
  • 50W/channel
  • 20Hz - 20kHz

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

AudioSource AMP-100 Stereo Amplifier

AudioSource AMP series amplifiers are designed for home and commercial audio distribution systems where high quality sound, flexibility, and reliability are essential. The AMP series offers exceptional value and many features that will make their installation and use easy and convenient.


  • Ideal for use as a remote amplifier
  • Use with Whole House Distributed Audio Systems
  • Second Zone Amplifier
  • Amplify MP3 Players
  • Rear Channel Amplifier for Dolby 6.1 and 7.1 Systems
  • Perfect for Computers and Video Games

Key Features:

  • Affordable!
  • 2 Independent channels rated
  • 60 watts per channel into 4 Ohms
  • Independent level and balance
  • Dual Auto-Switching Inputs
  • Auto Signal Sensing Power On
  • A/B Speaker selector
  • Bridgeable


  • Power: 50 Watts RMS @ 8 Ohms
  • 60 Watts @ 4 Ohms
  • Less than 0.2% THD into 8 Ohms
  • Input Sensitivity 1.5 Vrms
  • S/N Ratio: 100dB A-weighted
  • Frequency response: 20Hz to 20kHz


AudioSource AudioSource

Learn more about the AudioSource AMP-100

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Customer Reviews of the AudioSource AMP-100

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5 out of 5 eggsGreat little amp for the price

Pros: I was pleasantly surprised by how well this amplifier worked. Sound quality is quite good, and the power is sufficient for my needs. I'm sure if connected to studio monitors, an audiophile will say it's not great, but for the price, you can't beat it. And trust me, I have been searching!

2 sets of inputs. This appears to have caused confusion for a number of people so see Other Thoughts for more info on this.

2 sets of speaker outputs.

2 set of line-level outputs.


Always on power outlet on the back.

Considering this is made in China, the instruction sheet is very complete and very clearly written.

Cons: None that I have found so far.

Other Thoughts: While many people will buy this as a standard home audio amplifier as I did, I do not believe that is the intended application, which is why some people are having trouble with it. It is not specifically stated, but my belief is that this was designed as a stackable whole-house music system with intercom, or perhaps a PA system with background music. Here's why I believe this:

There are 2 inputs, but no input selector switch. "Input 2" is the main input source, while "input 1" is designed to cut off input 2 when a signal is detected. This would allow background music to be fed into input 2, and an intercom or PA could be fed into input 1, which, when keyed, would turn off the background music and instead broadcast the input 1 signal. When the signal on input 1 stops, the amplifier automatically switches back to input 2.

There is a line-level out. This allows several of these amplifiers to be daisy-chained together (connect the line-out to the input 2 of another amplifier).

This is bridgeable. While it is not uncommon for an amplifier to be bridgeable, it is not typically seen in home audio amplifiers, since no one wants to listen to mono audio in their living room. However, for an intercom system with background music, this would work fine.

There is no remote.

Auto power off when no signal is detected, which is well suited for mounting in inaccessible locations.

1 out of 1 people found this review helpful. Did you? Yes No

  • Christophe K.
  • 4/4/2015 2:10:51 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsBetter than a 100w Yamaha amp!

Pros: Plays nicely with my 89db Definitive Technology StudioMonitor350s, which are known for being very power-hungry. I use this rig for computer speakers (each monitor about two feet from my head & 3-4ft apart) with a powered Polk sub as well. It can crank to just about as loud as I would like in this configuration. Distortion at high volume is reasonable; not gone, but it doesn't ruin things by any means. I use it for music and video games.

I like that it's more or less void of features, too. All I wanted was an amp and nothing else. I appreciate that it has binding posts instead of clips. I've used it just about daily for half a year and it still hasn't caught fire, which is nice.

Frequency response is understated, too. It goes lower than 20hz, though I'm not sure who that would actually be useful for. It's pretty small compared to other amps, which is also good for my computer speaker application. It has a power plug in the back, which is where I've plugged in my sub.

I bought a Yamaha R-S201 to replace this, thinking that it would sound much better, but in fact, the Audio Source distorts significantly less at high volume than the Yamaha did at even medium volumes. Way to go!

Cons: There's an auto-power-off feature that confuses a lot of people; there's a switch on the back to disable it, but that doesn't completely work. It only affects Input 1, so use Input 2 for anything you don't want it to be all auto-power-off for. (It makes a clicking sound when it turns itself off)

It runs fairly warm if you use it at high volume for a while.

If the balance is panned all the way to the left or right, the channel that should be quiet makes a buzzing sound.

Other Thoughts: I'm pleased with this, and I can't imagine that anybody putting together a budget stereo setup would be unhappy here. I've used it to power a pair of big Klipsch floorstanders as well (95db) and it worked well there too. Whenever I do replace it, I'll surely keep it around as a backup amp or in case I ever buy a passive subwoofer.

2 out of 2 people found this review helpful. Did you? Yes No

  • Michael W.
  • 5/10/2014 7:42:57 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsawesome

Pros: super low noise. with the volume all the way up, and a long rca cable plugged into the input, but not plugged into any source, i can't hear any hiss at all. auto off is great, sound quality is great. The knobs feel tight and smooth like high quality potentiometers. i dont hear any pops or hiss while turning the knobs.

Cons: it has a balance knob which i dont need.

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  • Alexander P.
  • 3/8/2014 12:06:53 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat little amp

Pros: This amp does exactly what you need it to. It doesn't have a bunch of channels you'll never use and fancy LCD displays you don't need. It powers speakers with ease and provides two channels for a little extra utility and a line out to connect all of the rest of your stuff. It doesn't run too hot either. The volume and balance knobs are stiff as hell so you know they'll never budge from where you want them kept.

Cons: None. Quality piece of equipment that does what it needs to do and nothing else.

1 out of 1 people found this review helpful. Did you? Yes No

  • david d.
  • 12/14/2012 11:16:06 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsJust simple and Great!

Pros: Small, simple, easy, great amp

Cons: not really any.

Other Thoughts: plain and simple

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  • Geoffrey A.
  • 11/16/2012 6:47:45 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Amp for the $$$

Pros: the amp will sleep after a few minutes of no signal. great for saving power costs. provides very clean signal in mono mode. I run 2 of these amps in mono mode. one is dedicated to right and one is dedicated to left.

Cons: they 'pop' when waking up from sleep. not an issue, but it makes my wife ask "what was that noise" after she turns on the TV.

Other Thoughts: the pop i describe only happens on one of my amps. the right channel one. might be something i did wrong in the setup, but the left one does not do this.

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  • Jesse R.
  • 8/22/2012 4:03:50 PM
  • Ownership: 1 month to 1 year

5 out of 5 eggsunbeatable for the price

Pros: everything for the money

Cons: Its an amp...what more do you want from it?

Other Thoughts: I did not purchase this unit through Newegg, but just wanted to let folks know, this thing is awesome for a multitude of solutions. For the price, nothing on the market tops it.

And to the user comparing this to an A/V Receiver...are you serious? Of COURSE the H/K sounds has the capability to equalize sound! This is an AMPLIFIER. It does nothing more than supply power to the speakers! Nothing more, nothing less.

3 out of 4 people found this review helpful. Did you? Yes No

  • Anonymous
  • 8/19/2012 6:12:53 PM
  • Ownership: more than 1 year

1 out of 5 eggsFaulty Product

Pros: Works well if you only want to use it for 1 device. If so use input 2.

Cons: Auto power switching is intolerable. The sound will cut out in mid song or movie, just because the audio level dips below a certain threshold. There is a switch on the back that seems like it would disable this feature, but it does not. Only good for one device not 2. Use input 2 to connect to. Should work for 2 devices with out problems but does not. Only uses analog RCA connections.

Other Thoughts: Would not recommend this!!

0 out of 5 people found this review helpful. Did you? Yes No

  • paul C.
  • 12/26/2011 3:42:42 PM
  • Ownership: more than 1 year

5 out of 5 eggsGreat when use in Briged mode

Pros: I use two of the amp100 in bridged mode to run a L+R Polk M-70's pair in 2.0 stereo setup.
They drive these large floorstanding speakers with authority, pushing 150 wpc w/o any problems or clipping at high volume. The sound is neutral and warm.

I use a set of Emotiva XDA-1 & USP-1 as preamp with a squeezebox duet as transport. The system sounds fantastic. I listen to all sort of music.

Cons: None for the price.

In stereo mode it has it's limitations outside casual bookshelves powering, but when used as monoblock amps, they really shine.
No trigger inputs, just signal sensing. Oh well for the price I can not complain though.

Other Thoughts: I used the audiosource Amp310 (150 wpc) into the same system, and in comparison. 2 of these amps will do the same job, delivering 150 wpc, in bridged mode for less then half the price of the Amp310.

You need to read the manual, it is not detailed, but it suffciently explain how to use this amp.

5 out of 5 people found this review helpful. Did you? Yes No

  • Joseph D.
  • 12/11/2011 5:18:40 PM
  • Ownership: 1 month to 1 year

4 out of 5 eggsGreat lower cost amp

Pros: Quality, basic amp.

Everthing about it has a soild, quality feel.

Excellent speaker wire binding posts.

Cons: None really.

Other Thoughts: I got the "Amp 100" to use with a graphic EQ and a stand alone source switcher for a low cost, great sounding stereo, multi media sys.

It behaves well when driven into clipping.

1 out of 1 people found this review helpful. Did you? Yes No

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