4x100W at 4 Ohm TK2050 Class-T Digital Audio Amplifier Board

Brand:| Model: AA-AB33182
Based on two TC2000 and four TP2050 chips from Tripath, this Class-T audio amplifier board simplifies the creation of exceptional sounding custom multi-channel systems.
  • Perfect Class-T architecture featuring Tripath TC2000 and TP2050
  • Four channels—each up to 100W
  • Pre-assembled, pre-tested
  • Ample heat sink with cooling fan
  • Audiophile quality sound
  • Up to 90% efficiency
Part # 
Weight: 1.15 lbs.  
List Price$99.95
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Your Price
Buy 4-up$44.90
Part # 320-335
Qty:  EA
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Product Details

4x100W at 4 Ohm TK2050 Class-T Digital Audio Amplifier Board

Based on two TC2000 and four TP2050 chips from Tripath, this Class-T audio amplifier board simplifies the creation of exceptional sounding custom multi-channel systems. Compatible with power supplies ranging from 10V DC to 30V DC (or an AC voltage source with the addition of this rectifier board), it can be used in many audio applications. The amplifier has four channels with the same power of up to 100 watts each, resulting in outstanding sound quality and versatility. You can employ any number of channels you like, and leave the others unused.

This amplifier is exceptionally well designed, with a lot of power reserve, high fidelity, low distortion, good S/N ratio, high sensitivity, and full protection with heatsink and fan. These ideal characteristics make this amplifier a candidate to become the basic building block of your future high fidelity system, or it can become the element that will upgrade an existing system.

Features and Specifications: 
• Two Tripath TC 2000 and four Tripath TP2050 chipsets
• Over/under voltage protection, over current protection, over temperature protection
• Input sensitivity: 520 mV @ 100W per channel 
• Input impedance: 10 kΩ
• Efficiency: 90.3% @ 100W per channel
• Minimum impedance (per channel): 3.2Ω
• Output power (using 30V power supply): 64W x 4 @ 4Ω (1% THD+N), 108W x 4 @ 4Ω (10% THD+N)
• Frequency response: 20 to 20,000 Hz (±3 dB) 
• Signal to noise ratio: 100 dB (A-weighted) 
• DC power supply range: 10V to 30V
• Dimensions (L x W x H): 153 x 112 x 53 mm.

4x100W at 4 Ohm TK2050 Class-T Digital Audio Amplifier Board
  • BrandParts Express
  • ModelAA-AB33182
  • Part Number320-335
  • UPC844632007910
  • Product CategoryAudio Amplifier Boards & Modules
  • Unit of MeasureEA
  • Product Rating
    (7 Reviews)
  • Weight1.15 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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4x100W at 4 Ohm TK2050 Class-T Digital Audio Amplifier Board
4x100W at 4 Ohm TK2050 Class-T Digital Audio Amplifier Board is rated 4.1429 out of 5 by 7.
Rated 3 out of 5 by from STA508 not TripathThis is STA508 part from STM, and this is not the Tripath chipset as mentioned...
Date published: 2014-10-25
Rated 5 out of 5 by from Very good amp for the priceI have two driving large open baffle speakers. I checked the datasheets before buying these. At the rated 100W per channel THD is just over 5%. At 70W they are at 0.005%! They sound great. I will be using them a lot.
Date published: 2014-07-24
Rated 5 out of 5 by from These amps are all so great. This is no exceptionThis product, just like all the Sure Amp Boards, works great, has next to no distortion and easily embeds in audio projects. I have put this thing in countless custom projects and the new owners are always blown away. Sometimes, I put these right in speaker cabinets I've restored or build, with a BlueTooth unit to create an almost wireless sound system. People LOVE it.
Date published: 2014-03-08
Rated 3 out of 5 by from Didn't work in the car. Worked fine on the computer.The amp picked up way too much noise to be used in the car. I spent all day with no success trying to get it grounded enough to stop the noise even ran a ground directly to the battery. Put the amp in different locations and ended up using a regular auto amp instead with no problems. Not sure if there is a filter or something that would allow it to be used in the car since the directions say it can be used for auto. I hooked it up to a 12 volt and then a 24 volt power supply to a laptop in the house and it sounds good with either power supply with no background noise.
Date published: 2013-05-12
Rated 5 out of 5 by from Wish I had this decades ago!Got this to drive a multi-speaker basement setup: 2 Bose 301 Series II, 2 Realistic rear mini speakers, 2 large Utah bookshelf speakers (and eventually 2 AR-4 speakers, once I re-cone them). I wanted to see how much current it was taking since the power supply (24VDC, 14.6A, Part #: 320-316) fan was not running. At idle, it took 0.37A. At too loud for upstairs TV watchers, it took 0.4A. I measured it with 2 different meters. Since my power supply would only go to 27.4V, that is 10.96W input power. So it is loafing, with lots of head room, and sounding very good! I drove it with a McIntosh C27 preamp.I wish I had this amp decades ago when I was providing the sound for a parade float for a children's chorus. It would have sounded far better than what I had then and it would have run on batteries (even 2 x 12V lawn tractor ones would have lasted the duration of the parade). And it would sound far better than the typical float "boom box" setup.This amp would also have been excellent for providing the sound for a Jr High musical in a sound challenged cafeteria-auditorium. The individual channels would have allowed adding the proper delay between the front audience speakers and the middle audience speakers, or for adding individual channel echo-canceling signal processing.
Date published: 2013-04-18
Rated 5 out of 5 by from Wow, it sounds better than expected!Giving it a rectified 25VDC from a salvaged pwr supply, The sound quality is much higher than anticipated. The onboard fan was initially a concern, but remains mechanically and electrically silent. I have not tried to clip this amp, but have driven it fairly hard and it delivers the goods. The turn off thump is also quiet enough to completely dismiss. There is no power-up pop. The power jack seems to be an oddball size, which required me soldering directly to the board (no biggie). Overall, definitely a deal.
Date published: 2013-02-04

Product Q&A

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who own this product or have experience with it.
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4x100W at 4 Ohm TK2050 Class-T Digital Audio Amplifier Board

I'm looking for an amp that can drive my tactile transducers and these 4x100W amps look like a bargain. They will be use for a simrig, providing tactile feedback about curbstones, engine vibrations, etc. Will 10% distortion be a problem in this case? 

Asked by: Simracer
Thank you for your question!This particular amplifier board would work great for your simulation rig. You shouldn't need to use 100% of the rated output power at all times, and I really don't think you'll end up using more than 50 watts per channel if you intend to connect four transducers to a driving chair, so the distortion rating should be moot point.Distortion through vibration, however, is much harder to discern. I don't think you'll have an issue with signal fidelity if you do end up using all of the available power.
Answered by: mikevv
Date published: 2014-12-08

Hello, I am building my first boombox and I am powering it with 2 x SLA 12V 7Ah batteries. What's the best way to power amplifier board? Should i connect them in parallel or in series. I plan to use 2x Dayton Audio ND105-4 and JVC CS-V628.

Asked by: Raimondas
Parallel will double your capacity while series will double your voltage. Either method will work for this application since the amplifier can accept anything from 10-30VDC.
Answered by: MattP
Date published: 2014-12-11

On the 4x100W TK2050 Class T Digital Audio Amplifier, what is the maximum voltage?  Would 46 VDC be too much?   I am thinking about the: http://www.parts-express.com/48-vdc-33a-150w-regulated-switching-power-supply--320-3142 to save a few $$.  

Asked by: bigjoe
The maximum voltage recommended for this amplifier is 30 VDC.
Answered by: MattP
Date published: 2014-11-19

will this run 4 x 50w aura shakers with out issues? what power supply should i use to run this amp

Asked by: JsrJet
Yes this will power 4 shakers without a problem. I would recommend the power supply below.http://www.parts-express.com/24-vdc-146a-350w-regulated-switching-power-supply--320-316
Answered by: MattP
Date published: 2014-11-16

can this amp be use for a DIY project (Portable Boom Box) and if so what rechargeable battery do you recommend

Asked by: antonio229
This can work from 10 to 30volts so a battery is possible. The main obstacle would be the required amp rating. at 12 volts you would need over 30 amps and that would be a very large and heavy battery.
Answered by: Chrisf
Date published: 2014-06-06

do these amp boards need a heat sink?

Asked by: freddy1hound
Yes these do require a heat sink and air circulation in order not to be thermally damaged.
Answered by: MattP
Date published: 2014-05-09

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