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AudioSource Power Amplifier

AudioSource AMP-100 Stereo Power Amplifier

by AudioSource See the Amazon Page for this brand
4.1 out of 5 stars  See all reviews (438 customer reviews) 80 answered questions

List Price: $179.99
Price: $139.99
You Save: $40.00 (22%)
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Ships from and sold by Beach Audio.



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Product Features

Size: 50-Watt
  • Perfect for Computer and Video Games
  • 60 watts per channel into 4 ohms
  • Rear Channel Amplifier for Dolby 6.1 and 7.1 systems
  • 2 Independent channels rated
  • Dual Auto-Switching inputs

Special Offers and Product Promotions

Size: 50-Watt
  • Amazon Free 30-Day Tech Support: This item is eligible for free tech support for 30 days from the date of delivery. Over the phone, our trained technicians can help you set up, configure, connect, and troubleshoot so you can start enjoying your new purchase. Owners of qualifying products can reach Tech Support by calling 1-800-362-5703. Learn more

Frequently Bought Together

AudioSource AMP-100 Stereo Power Amplifier + Apple AirPort Express Base Station (MC414LL/A)
Price for both: $237.92

These items are shipped from and sold by different sellers.

Buy the selected items together

Product Specifications
Size: 50-Watt
Brand NameAudioSource
Output Wattage50 watts
Color NameOne Color

Product Details

Size: 50-Watt
  • Product Dimensions: 16.5 x 9.2 x 2.9 inches ; 9.6 pounds
  • Shipping Weight: 12 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B00026BQJ6
  • California residents: Click here for Proposition 65 warning.
  • Item model number: Amp 100
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (438 customer reviews)
  • Amazon Best Sellers Rank: #3,667 in Electronics (See Top 100 in Electronics)
  • Date first available at Amazon.com: October 2, 2001

Product Description

From the Manufacturer

AudioSource AMP-100 Amplifier: Clean Power Meets Ease of Use for Flexible Home Theater Applications

AudioSource started designing and building amps over 20 years ago. Over time, AudioSource has continually refined its products to balance power, sound clarity and long-lasting performance.

AudioSource AMP-100 Amplifier
Built to deliver powerful music. View larger

Like the rest of AudioSource's line of amps, the AMP-100 is full-bandwidth capable, bridgeable, and features A-B switching, providing a repertoire of flexible configurations. It features a robust power supply and bipolar output devices, with source override to accommodate necessary interruptions such as PA systems, game consoles, phone calls, or even doorbells. All AudioSource electronics, including amplifiers, equalizers, volume controls and more, are easy to install and torture-tested during development to ensure years of use.

This AudioSource AMP-100 two-channel power amplifier is built to deliver powerful music, pure and simple, with few extra controls to get in the way. Listeners can use the AMP-100 as an independent stereo amp (50 watts x 2 into 8 ohms) when used with a preamp, as a second zone amplifier in multi-room applications, or as a rear-channel amplifier in a 6.1- and 7.1-channel system. Using the Amp 100 in pairs as monoblock amplifiers playing Right and Left channels (the AMP-100 delivers 150 watts RMS of bridged power), listeners can independently drive two front left/right speakers or two rear speakers, further clarifying each channel to create dynamic high-end sound. To connect additional components to the amp, use the included stereo inputs with automatic priority override (for connecting to a source such as a receiver, CD player, or preamplifier)--or use the auxiliary output for creating a multi-amp setup.

The AMP-100 boasts a precise frequency response of 20 Hz to 20 kHz and total harmonic distortion of 0.02 percent. Additional features include A, B, or A+B speaker selector switches, front-panel mounted volume and balance knobs, and five-way binding posts that work with both bare wire and banana plugs. Plus, at 16.5 by 2.9 by 9.25 inches (W x H x D), the device should fit comfortably in most rack mount or home entertainment setups. All AudioSource amps are backed by a two-year warranty on parts and labor.

Which AudioSource Amplifier is Right for You?

Model Watts Per Channel Features at a Glance
8 Ohms
4 Ohms
8 Ohms
Channels Inputs Priority
Auto-On 12v
AMP 50 25 30 NA 2 2
AMP 100 50 60 160 2 2
AMP 102 50 75 150 2 2
AMP 110 75 110 225 2 2
AMP 210 90 125 250 2 2
AMP 310 150 225 450 2 2
AMP 1200 40 40 80 12 3

Product Description

AudioSource AMP series amplifiers are designed for home and commercial audio distribution systems where high quality sound, flexibility, and reliability are essential. The AMP 100 features 2 independent channels rated at 60 watts per channel into 4 ohms (50 watts RMS at 8 ohms). The AMP-100 boasts a precise frequency response of 20 Hz to 20 kHz and total harmonic distortion of 0.02 percent. Additional features include A, B, or A+B speaker selector switches, front-panel mounted volume and balance knobs, and five-way binding posts that work with both bare wire and banana plugs.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
489 of 500 people found the following review helpful
Size Name:50-Watt|Verified Purchase
I've owned one of these amps now for about six months. All the complaints I've read in the reviews have come from people who obviously can't be bothered to read, pay attention, or think things through. I'm specifically referring to Auto Input Switching/Power, lack of features, and output power.

First, this is NOT an integrated amp. Nor is it designed to be used primarily as a standalone system. It is intended to be used as a node on a distributed music system. The feature set for this unit has this use in mind.

It can function as a standalone unit but if you are going to use it as such you need to use it with a pre-amp or with an input source that provides adequate line in, input selection and the tone/equalization control you want.

Second, the auto input switching. The manual isn't clear on this and the feature can't be switched off, which is why I docked it a star. But some reading and thought will provide the solution. The auto input feature is only on input 1. If you run your primary input to input 2 you will have no problem with auto switching cutting off your music during quiet passages or after the track has started. If you need to use multiple sources without the auto switch cutting the input then you need to use external input switching (see pre-amp above) and make sure the switch/pre-amp is fed to input 2 on the amp.

Auto-power on issues: This feature can be turned on or off by way of a selector switch on the rear panel of the amp. Default is on. This is in the manual.

"It doesn't have a sub out": No, but it does have a line out/pass-through for input 2 which can be used for a sub out.

"It isn't loud enough": One of two things is happening here; 1. The line in isn't sufficient to properly drive the amp. 2.
Read more ›
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94 of 100 people found the following review helpful
5.0 out of 5 stars Solid product! January 18, 2006
Size Name:50-Watt
I had the reported switching problem ("UPDATE: This device has one annoying defect ... a "clever" feature of switching inputs automatically when it senses no input on one of the two stereo inputs ... any stretch of silence will cause it to switch"). I called AudioSource and I have to give them credit. The problem is relatively easy to solve by using Input 2 instead of Input 1 if you're only using one input.
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96 of 110 people found the following review helpful
5.0 out of 5 stars Compact solution to complement my IPOD October 5, 2005
By Julie
Size Name:50-Watt|Verified Purchase
My stereo configuration is four KLH outdoor "rock" (they look like pieces of granite) speakers, an IPOD, and a ten-inch deep book shelf that I wanted to use as the location for the amplifier. I looked at Fry's, Best Buy, and Circuit City and couldn't find anything that was compact enough to fit on the bookshelf unless I went really high-end with a Bose setup. I had a spare Sony surround receiver that worked fine, except that it didn't fit the shelf, plus I wasn't really looking for all the bells and whistles of the receiver because I won't be using this setup to watch TV, my CD's are all on iTunes now, and I get crummy radio reception at my house. So, the technical requirements were to be able to drive the four speakers using a line-in level input coming from the IPOD. Pretty simple.

Anyhow, I purchased the Audiosource AMP100 amplifier on Amazon (to my consternation they dropped the price 3 bucks between the time I placed the order and when I received it) and it arrived in about a week using the free shipping option. It came well packed and sealed, and was as simple to set up as you'd expect of a unit like this. So far, I have tested it once and it worked fine, in fact it sounded a little better than the Sony. All four speakers were being driven normally in A+B mode. I haven't tested the auto-on feature, but it allows the box to power up automatically when it senses a signal on one of two audio inputs. The power plug on the back of the unit is unswitched (always powered). If I have any problems with the unit I'll update this post, but so far, so good.
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39 of 47 people found the following review helpful
Size Name:50-Watt|Verified Purchase
(originally written 2005, updated 12/2013)

This is a unique device. I looked far and wide for it, and when I found it another reviewer had exactly the same need as me.

Firstly, let me help with some details. Amazon lists 3 different measurements for the depth of this device (main page, tech page, manual). The model I received is in fact:

- 8" deep using the cabinet measurement
- 9" deep including the banana plugs for speakers
- significantly deeper if one connected speaker leads with banana plugs, I use bare wire and screw in the connectors

I needed this to fit in a narrow shelf, so depth was critical. It fits perfectly, as long as I don't put banana plugs on my speakers. I threaded in the speaker wires and screwed down the banana plugs. It fit my cabinet.

The amplifier seems to have been designed to auto-switch from TV input to a CD player input. There are two rca plug inputs, one output. Two dials, balance and volume. Two sets of stereo speaker posts - A&B. You can drive A, B or both. Speakers MUST be at least 8 ohms resistance. There's even a headphone out, and you can direct sound to two speakers and the headphone.

I use low volumes and good quality (Mission) bookshelf speakers, to me the output is very agreeable.

There is one big defect that costs it two stars. Indeed, if not for the net (and other reviews here) providing a fix I'd give it one star. If you use Input 1, even if you set the switching to 'manual' and have no input 2, pauses in input sound produce a loud (to me) relay click sound. (I don't think manual every helped with this problem.)

The secret is to use Input 2, which is somehow "dominant". (See other reviews for mention of this.) Don't put anything on input 1 -- it's not worth it. If you want to switch inputs use an external device.

If this am had only ONE input and no auto-switch it would be a five star device.
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Most Recent Customer Reviews
1.0 out of 5 stars it doesn't work. after spending countless hours troubleshooting and...
it doesn't work. after spending countless hours troubleshooting and not knowing if it was my sony receiver or the amp 210 I decided to remove the an amp that I have in my home and... Read more
Published 2 days ago by darrell wood
5.0 out of 5 stars Power Amp
Just what we needed to power the external speakers for the TV in living room when watching movies.
Published 3 days ago by Nathaniel LeBeque
3.0 out of 5 stars you're going to be disappointed like I was
If you're going to use this as a separate power amp for your mains, you're going to be disappointed like I was. That's not really what this is for. Read more
Published 6 days ago by anonymous
1.0 out of 5 stars One Star
Does not work!
Published 12 days ago by Philip
2.0 out of 5 stars DOA out of the box. Glad I bought from Amazon so they could make it...
Pretty sure mine was defective. Would not put out a signal at all. But, as expected, Amazon made it right with no hassle. I'm guessing my unit was just defective. Read more
Published 14 days ago by A. Shank
5.0 out of 5 stars Awesome value.
3 years in use 24/7 and still working perfectly.
Published 16 days ago by Clay Melugin
4.0 out of 5 stars Value standout among AudioSource power amps.
The amp is very well put together at its amazingly low price point, including decent binding posts, toroid transformer in power supply, and such. Read more
Published 17 days ago by bobatious
4.0 out of 5 stars Problem solved!
Once I finally figured out that I needed an additional amp for my outdoor speakers, I did some research online and found this one from AudioSource. Read more
Published 18 days ago by Monterio
1.0 out of 5 stars One Star
Didn't last long.
Published 20 days ago by G. Wolf
5.0 out of 5 stars Great amplifier for my distributed audio system
Great amp. Love the auto power off and auto power on feature. I use it in bridged mode with the "Monoprice 108232 4-Channel A/B Speaker Selector with Volume Control" for... Read more
Published 22 days ago by ifitaintbrokeitwillbe
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