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.

Product Specifications
  • Power Output (RMS Per Channel @ 8 ohms)3 Watts
  • 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

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'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

Would I need volume control with a bluetooth module?

I was thinking of using the BT-1A for input. Would I need a potentiometer for volume control or would the volume on the source device be sufficient?
Asked by: Betts
This depends on your source device. If you can control the volume through bluetooth, then yes it will be sufficient
Answered by: JDoyner
Date published: 2013-07-26

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