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

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
You Save60%
Your Price
Buy 4-up$8.33
Part # 320-329
Qty:  EA
Available Payment Methods

Product Details

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

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 • Dimensions (mm): 98.48 L x 52.90 W x 16.10 H.

Product Specifications
  • Power Output (RMS Per Channel @ 8 ohms)3 Watts
  • Power (RMS/Channel 8 ohms)0 - 25 Watts
  • Special FeaturesBoard Only Module
  • Weight Range< 10 lbs.
2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board Only
  • BrandParts Express
  • ModelAA-AB32231
  • Part Number320-329
  • UPC844632098871
  • Product CategoryAmplifiers
  • Unit of MeasureEA
  • Product Rating
    (12 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.

Similar Products

View similar products to the 2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board Only
in the Amplifiers product category.


2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board Only
2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board Only is rated 4.8333 out of 5 by 12.
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: 2014-04-08
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: 2014-02-27
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: 2014-02-14
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: 2014-01-31
Rated 5 out of 5 by from Works amazingly well - I now own 30 of theseI purchased one of these to test alongside two other amps here on Parts Express, one of another style and the higher powered version of this amp by the same manufacturer. This amp was much better than the other brand amp, a big difference in fact. The higher powered version of this amp worked fine but really in my uses was too much power and I preferred the audio connection to be a headphone jack as this one used over the others RCA input.In the end I purchased 30 more of this amp to replace an one year old analog amp that was installed in kiosks. They are powering a 2" speaker, and on the computer that this is connected the volume is set between 5 and 10% and is more than enough for the kiosk to be super loud (able to hear clearly 5-6 feet away outdoors in open air) and completely distortion free. I am very, very impressed with this amp so far. I've owned these for three months now and have had no issues. I purchased a few extra to have a spares in case one failed but so far they have all worked perfectly. I can't ask for more than what these have provided so far anyway, recommended!
Date published: 2014-01-22
Rated 5 out of 5 by from Amazing valueThis amplifier is simply amazing when paired with fairly sensitive speakers. 5 watts can go a lot farther then one might expect. I use it in a large living room for background music, but in a smaller room it would be more than adequate. The sound is smooth, slightly warm with detail, and has surprising bass. This could easily be someone's reference amplifier if modded with the right component's. This is the first of a few I plan to build. I upgraded the stock caps with pany fc's, added a volume pot, gold plated binding posts, gold plated rca's, and a dc jack. I plan to build my next one using top component's. Even stock, this amplifier is a steal at $9.99
Date published: 2014-02-13

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 Only

What is the power input requirement? (ie. at 12V, how much current is required?)

At 15V input, how much current is required?
Asked by: scottghall
This neat little amp board has hundred of custom uses. It is clean for it's size. The output will depend on your input power. It can be from 10vdc@ around 1200ma to 18 vdc @ 2500 ma. More power equals better performance but you need not max out to get good sound.
Answered by: Nitnub
Date published: 2014-01-27

Using this amp for small computer speakers. Can I use the volume control for the sound card?

The speakers I am using are 8 ohm at 6W max. I built cabs for them. Not really looking for HD sound, just for basic sound. I can switch to my larger amp to get the surround on power games. So the current needed for the amp, does it need to be about 1 amp?
Asked by: barber
1. Yes, use the volume control from the PC. This eliminates the need for a volume control potentiometer and simplifies the build. Also, voltage bridging is much better with no potentiometer.2. Using 8 ohm speakers, this amp's max power is 5 watts per channel (10% THD). For class D amps, the max power output depends on the voltage in. The datasheet provided from Sure has the voltage in for the power spec at 12 volts. So, if your supply is 12 volts, the max power draw would be a little under 1 amp. A 12 volt 1 amp power supply would be sufficient.3. Enjoy your home built computer speakers. They are FAR better than anything you could by at a computer shop.
Answered by: Honest Rob
Date published: 2012-04-26

Can I bridge to mono?

Hello, I was wondering if it is possible to bridge this amp into a mono mode?Thanks
Asked by:
Actually, the CHIP can run in a mono mode, but you'd have to do some very careful rework to get it to happen.You'd have to lift pin 14 of the chip, then connect it to the AVCC pin through a 100K resistor. Also, you need to hard-ground the left channel input (not through a capacitor).You can figure out more about it by looking at the TI datasheet. Look at the applications schematic on page 21 and compare it to the Sure schematics to help understand the differences.
Answered by: TYger23
Date published: 2013-07-29

Can this be used in a portable speaker?

I'm essentially new to this, despite having spent the last couple of weeks reading up on what I thought was important. I've decided to build a small, battery operated, and hopefully cheap, portable speaker with 2 full range drivers. But because I'm new, I have a couple of questions.1) Should I bother adding a potentiometer as an additional volume control to the one from the audio source (probably an MP3 player)?2) Is an on/off switch (like PE's cheapest SPST mini rocker switch necessary? And if so, where is it wired?3) In the manual, it was stated that only 1 power source should be connected at a time. If I were to wire a 12V battery pack (in the form of a rechargeable li-ion battery pack or a bunch of AA batteries, and assuming I purchase the terminal blocks from the Sure website), how would I go about "switching" (maybe the wrong word) the power source from the battery to the DC plug? Or am I simply creating too much trouble for a newbie?Sorry for the long(ish) read, and thanks for the help.
Asked by: iamrcubed
If you are using a MP3 player or something that has control over the volume, I would not recommend using an additional volume control. IT is just additional resistance that is unnecessary.I think your setup could actually use something like a DPDT switch that has the center position off. One side can be for battery, the other for DC power supply, and the center for "off"
Answered by: Chrisf
Date published: 2014-02-04


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

Additional terminal blocks?

The board comes with PCB-mounted screw-type terminals for the outputs. I would like to buy more of these terminals for the input and power. Is there a PE part number for these terminals? If PE doesn't carry them, does anyone know of manufacturer + part number that can be sourced somewhere else?
Asked by: MattG
Yes, PE carries sever to choose from.
Answered by: Nitnub
Date published: 2013-04-01

Customer Projects

Customer projects that include: 2x8W at 4 Ohm TPA3110 Class-D Audio Amplifier Board Only

If you built a project using this product, post it in the Parts Express Project Gallery.

Customer Discussions

If you would like to start a discussion about this product, post a thread in the TechTalk Customer Forum.
Parts Express Free Shipping at 98 Dollars

Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Parts Express
725 Pleasant Valley Dr.Springboro,OH45066USA

© 1996-2014 Parts Express, All Rights Reserved