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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Your Price
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.

Product Specifications
  • Special FeaturesBoard Only Module
2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board
  • BrandParts Express
  • ModelAA-AB32231
  • Part Number320-329
  • UPC844632098871
  • Product CategoryHome Audio Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (14 Reviews)
  • Weight0.15 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains 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 4.8571 out of 5 by 14.
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: 2014-08-13
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
Rated 4 out of 5 by from Nice Sound, Good PriceI bought this to give me a speaker output for my digital recorder that I use for music practice. It works just fine and has a clean sound through small bookshelf speakers. My only complaint is that it could have used two more screw terminals for the input connections.
Date published: 2014-02-26
Rated 4 out of 5 by from Pretty decent ampI've built a few versions of this, but I've managed to keep this one. It has Elna Silmic II caps, and an Alps blue velvet. I can't get enough of the smaller power chip amps. There a lot of fun.
Date published: 2014-02-12
Rated 5 out of 5 by from Great Amp!Audiophile quality sound for cheap. With a few mods this little amp is amazing! Don't let the low power fool you. It will drive fairly efficient speakers easily. Especially good for computer sound systems.
Date published: 2014-01-30

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board

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


will this power supply give me MAX output.now i know this is the ideal power supply for the lepai 2020A+ but im not sure about this
Asked by: speaker freack
Yes that power supply will be ideal for that amplifier.
Answered by: MattP
Date published: 2014-01-27

Popping sound when powered on?

I built a little power amp with this board. I turn it on by plugging in the power supply (poor man's on/off switch). When it powers on, a "pop" comes out of the speakers. Does anyone experience this, and if so, what's the best way to remedy it?
Asked by: MattG
that "pop" sound is simply the caps filling up with power, no need to worry
Answered by: speaker freack
Date published: 2013-09-07

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