2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board

Brand:| Model: AA-AB32231
This 2 x 8W Class D dual channel amplifier board employs a Tripath-style Texas Instruments TPA3110 chip. Each channel is rated at 8 watts, delivered with state-of-the-art sound quality.
  • Pre-assembled, pre-tested
  • Superb sound quality
  • Perfect Class-D architecture
  • Fully-bridged stereo output
  • Two channels—each up to 8W
  • Up to 92% efficiency
  • Does not require a heat sink for most applications
Part # 
Weight: 0.15 lbs.  
List Price$24.99
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Buy 4-up$8.33
Part # 320-329
Qty:  EA
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Product Details

2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board

Each channel of this Class D dual channel amplifier board is rated at 8 watts, delivered with state-of-the-art sound quality. The TPA3110's efficiency eliminates the need for an external heat sink when playing music under average listening conditions. Integration of high-quality SMD and MKP plug-in capacitors ensures hi-fi amplification output. Requires a DC power supply ranging from 10 to 16V (available separately) and performs admirably with 4 ohm and 8 ohm speakers.

Specifications: • Output power: 3W x 2 @ 8 ohms (<0.1% THD+N), 5W x 2 @ 8 ohms (<10% THD+N), 6W x 2 @ 4 ohms (<0.1% THD+N), 8W x 2 @ 4 ohms (<10.0% THD+N) • Frequency response: 20 Hz to 20 kHz (±3 dB) • Signal to noise ratio: 100 dB (A-weighted) • Recommended power supply: 10 to 16 VDC • 2.1 mm DC input jack • Dimensions (mm): 98.48 L x 52.90 W x 16.10 H.

2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board
  • BrandParts Express
  • ModelAA-AB32231
  • Part Number320-329
  • UPC844632098871
  • Product CategoryAudio Amplifier Boards & Modules
  • Unit of MeasureEA
  • Product Rating
    (17 Reviews)
  • Weight0.15 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board
2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board is rated 4.8235 out of 5 by 17.
Rated 4 out of 5 by from Excellent amp!I bought this amp a couple weeks ago just to experiment with. The amp has decent volume from most sources. What I like most about the amp is the clarity and excellent stereo image. The only thing is the amp could have more input sensitivity and volume, and better bass response. But good clean amp will work great with most projects, Just make sure input has decent voltage level.
Date published: 2014-09-14
Rated 5 out of 5 by from You have to hear it to believe it!I've built a half dozen or so portable powered speaker systems using a few of the various 2x15 watt board amps available from various sources. Having to always pad the input signal to not overpower the drivers, I thought I'd try this 2x8 watt board. I figured I'd be trading away some sound quality but, lo and behold, I find this may actually be a step up -- and still requires a pot on the input for the smaller systems. In fact, I am going to try the Sure 2x2 watt amp, next, for these.To fully test the capability of this amp's 2x8 watts, I am currently listening to it through a pair of Optimus PRO LX-8s I am in the middle of reengineering. This amp delivers the goods, even with crossovers less efficient than the originals for these love/hate speakers. Here's what is so surprising -- I am comparing this amp to my "bench" amp used in this setting, a Stewart Audio World 1.2, which produces a nicely clean 2x300 watts at 4 ohms. This is what I am hearing: the Stewart with input controls at half matches this Sure at full; this Sure presents slightly better detail and stereo separation from about 2k on up; the Stewart is better at controlling bass, but the bass from this Sure still sounds rather good. In short, I am nearly giggling because of what this little board can do as I blast iTunes Radio's Latin Jazz station through it.Other things I very much appreciate include easy hookup via onboard jacks for power, audio input, and speaker output; input voltage requirements that accommodate eight NiMH AAs; and, best of all, holes for mounting!
Date published: 2014-09-07
Rated 5 out of 5 by from Great little ampBought this to power two speakers on my computer, works great
Date published: 2014-09-02
Rated 5 out of 5 by from Superb Tripath SoundJust hooked this up to my home stereo. I have a number of Tripath based amps that use the TA2020, TA2021 and TA2024 chips. I've also got an amp that uses the newer TPA3116. To my ear this sounds as good as any of them. Since it (obviously) lacks a volume control, I hooked it up to an Bravo Audio Ocean Preamp and it is a match nearly made in heaven. Even though this is only an 8 watt amp, the Bravo Audio Ocean has so much gain that you'll be shocked how loud you can drive your speakers. My only complaint is that I can only use about the first 1/10th of the travel in the Bravo's volume knob before it gets too loud with my 92db Axiom M3 speakers.
Date published: 2014-08-00
Rated 5 out of 5 by from Wonderful little thingBought this little guy, because I wanted a TPA3116 but didnt want to wait for an order from China. And Im glad I did. I love this Amp. I currently have it installed with a rat shack pot in an old wooden .22lr ammo box. Using a pair of Boston HD5s, the sound is stellar.
Date published: 2014-05-02
Rated 5 out of 5 by from Very clean amplifierI bought this amplifier for a portable bluetooth music player. I bridged the amplifier to run 16 watts mono. I am powering a Tang Band W3-881SJF 3" Full Range Speaker and the outcome sounds fantastic. The battery life is also very impressive due to the efficiency of this amplifier.
Date published: 2014-03-25
  • 2015-03-30T06:12CST
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Product Q&A

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2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board

Can I power this amp with a 12v, 6800 mAh battery?

Asked by: Crisrmz_
Yes that will work fine with this amp.
Answered by: MattP
Date published: 2015-01-07

What is the input impedance of this amplifier?  What resistors would you recommend when summing a source to mono into this amp?

Asked by: hoovie87
This amplifier has an input impedance of 30K ohms.
Answered by: MattP
Date published: 2014-11-10

I soldered my board up yesterday. Unfortunately, when I hooked it up to my Acoustat preamp and Tekton OB4.5 speakers, I get a constant "thump" from the speakers and the music that's there is very, very low. Any thoughts?

Asked by: wes_in_va
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-08-25

I'm confused by "board only" in the description. Is it just the circuit board and I have to purchase all the little bits that it shows in the picture separately or is it all there and working, I just need to add an on/off, power and volume?

Asked by: tlb18
"Board only" simply means this is not installed in a casing. You will receive what is pictured, which is a fully functional amplifier board, completely assembled with all required parts, just not in an aesthetic case.
Answered by: MattP
Date published: 2014-08-14

Which potentiometer would be adequate for this board? I see several on you site but not sure which one would be best? 5k, 10k, etc..? https://www.parts-express.com/Search.aspx?keyword=potentiometer%20stereo&sitesearch=true

Asked by: graciaj
found the answer, 50k per the manual.
Answered by: graciaj
Date published: 2014-07-02

Is there a 3.5mm jack there?

Asked by: powpowkick
Yes this has a 3.5mm jack for an input.
Answered by: MattP
Date published: 2014-08-14
  • 2015-03-30T06:18CST
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