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Dayton Audio DTA-2 Class T Digital Audio Amplifier Module

Brand:| Model: DTA-2
Product Video
Dayton Audio's DTA-2 amp module utilizes a Class-T Tripath audio chip to produce incredible fidelity and efficiency. Add a 12 VDC 2A power supply to this complete PCB, and install smooth, clean audiophile sound almost anywhere.
  • Features Tripath TA-2024 IC
  • 15W/ch continuous power
  • Limitless application possibilities
  • Measures 2-11/16" x 1-5/16"
  • Ideal for audio projects and educational applications
Part # 
Weight: 0.25 lbs.  
List Price$25.99
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Buy 5-up$18.90
Part # 300-385
Qty:  EA
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Product Details

Dayton Audio DTA-2 Class T Digital Audio Amplifier Module

The Dayton Audio DTA-2 Class-T Digital Audio Amplifier is designed around the Tripath TA-2024 IC developed by Sonic Impact. The TA2024 is a 15W/channel continuous average two-channel Class-T Digital Audio Power Amplifier IC using Tripath's proprietary Digital Power Processing™ technology. Class-T amplifiers offer both the audio fidelity of a Class-AB amplifier and the power efficiency of a Class-D amplifier.

This DTA-2 amplifier is ideal for any audio enthusiast who enjoys building and modifying speaker systems. The applications are virtually limitless, since this tiny PCB measures a mere 2-11/16" x 1-5/16". Build your own speakers or incorporate the amplifier into an existing speaker cabinet. Recommended power supply: 12 VDC, 2000mA, regulated.

Specifications: • Output power: 11W @ 4Ω, 6W @ 8Ω (0.1% THD+N); 15W @ 4Ω, 10W @ 8Ω (10% THD+N) • Efficiency: 81% @ 15W, 4Ω; 90% @ 10W, 8Ω • Dynamic range: 98 dB • Over-current protection • Over-temperature protection.

Package Contents:
(1) Class T digital audio amplifier PCB
(1) Volume control PCB with 12" ribbon cable
(1) LED power indicator with ribbon cable
(2) 12" speaker wires (red & black)
(2) 12" power wires (1 red & 1 black)
(2) 12" LED wires (1 red & 1 black)
(2) Ferrite cores
(2) Output capacitors

Product Specifications
  • Power Output (RMS Per Channel @ 8 ohms)15 Watts
  • Power (RMS/Channel 8 ohms)0 - 25 Watts
  • Special FeaturesClass T,Board Only Module
  • Weight Range< 10 lbs.
Dayton Audio DTA-2 Class T Digital Audio Amplifier Module
  • BrandDayton Audio
  • ModelDTA-2
  • Part Number300-385
  • UPC844632080623
  • Product CategoryAudio Amplifier Boards & Modules
  • Unit of MeasureEA
  • Product Rating
    (54 Reviews)
  • Weight0.25 lbs.
  • Case Qty195
  • 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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Dayton Audio DTA-2 Class T Digital Audio Amplifier Module
Dayton Audio DTA-2 Class T Digital Audio Amplifier Module is rated 4.5926 out of 5 by 54.
Rated 5 out of 5 by from great working little amp.Ive been waiting for something like this. AWESOME!!!
Date published: 2014-03-12
Rated 4 out of 5 by from Versatile project AMPThese wooden cigar boxes are 2 for $5 at my local cigar store. Can't decide which will go in my office!
Date published: 2014-03-08
Rated 5 out of 5 by from MoTo Sound that doesn't Tax electrical system!I've bought two of these units. For portable application and for the moto. And I know I'll buy more! I had been having troubles with using small commercially available car audio amplifiers in my Honda Pacific Coast 800 (PC800). Known issue with the bike is inability to add very much extra current draw in the way of electrical add-ons. After countless headaches, replacing a burnt Voltage Regulator/Rectifier, then upgrading to a MOSFET based R/R... and killing-off two moto batteries in the process... I decided to give this little guy a try, since some sound is better than no sound. I'm using an old Creative Labs ZEN Nano Plus MP3 player as input, but its input proved to be not quite strong enough so fed it into a FiiO E5 Headphone Amplifier that then feeds into the DTA2 which I built a small wooden enclosure for to fit in the "glovebox" in the front fairing of my moto. One thing I like about this setup is that I can control when the amp comes on via the rotary switch... so when I'm trying to crank-over the moto after it has set for a while I don't have the amp pulling a draw trying to sabotage getting her started. The output is pretty darn good! The bass is not quite as good as the other car audio amp I was using.. but the speakers I'm utilizing are Polk Audio db401's which are 91db Sensitivity so they get nicely loud with this setup. I'm very pleased that I now don't have to go without sound in my ride. And... you can run a DTA2 virtually all darn day at full volume off a 12v 5Ah battery, so now I don't have to worry about this little guy taxing my electrical system!
Date published: 2014-03-28
Rated 5 out of 5 by from Great little boardThis is a great audio card for small projects. The volume pot also works as a power switch with its detented pot. Power LED output uses the input voltage so I could use a 12V lamp from a different project instead of the supplied blue LED. The price was great for such an adaptable kit.
Date published: 2014-02-07
Rated 4 out of 5 by from Fun and easy!A bit intimidated as I had never done anything like this before. Came out great! Had an old pair of speakers from a micro system lying around and thought this application would be better for my garage as the amp is sealed up inside the speaker and somewhat protected from the elements, not to mention the smaller footprint and fewer wires. Working out so well that I just ordered another!
Date published: 2014-02-10
Rated 4 out of 5 by from Easy build with nice featuresI bought two of these to make ammo cans into speaker sets for mp3 players/phones (using Pyle PL42BL drivers). They were easy to build, even for a a novice. The small board size and ribbon connections to the light and switch lets them fit anywhere. The board lets you move power to a panel mount jack, but not the input so that required a modification. Everything sounds great now that they're done. Highly recommended for this kind of project.
Date published: 2014-01-26

Product Q&A

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Dayton Audio DTA-2 Class T Digital Audio Amplifier Module

Battery Power Options

Can this be powered by the output from a “new iPad” battery back up?The specific unit I am looking at is a 7000mAh External Battery Pack.It has duel output 5V/2A and 5V/1A. Can the 5V/2A run the amp? I like this unit as I could power a Bluetooth module of the 1A side…
Asked by: andyvp
No, you need a 12 volt 2000 ma power supply and your unit is only 5 volts. Even though you have sufficient current (amps) you lack the voltage required for rated output.
Answered by: Nitnub
Date published: 2013-08-13

could you power 2 of these amps with one ac adapter

just wondering if you could power 2 of these amps with one 12v 2a ac to dc adapter i have a project in mind that will need 2 amps but don't want to have 2 power supplies connected to it thanks
Asked by: GWF82
Yes, you could do that, but there won't be enough available power to drive the both amps to full volume. With a 2 amp power supply, there isn't even enough available power to drive one amp to full power.That said, if your volume needs are low or you have sensitive speakers then yes. Otherwise I would get power supply that can provide more current.
Answered by: Honest Rob
Date published: 2013-01-22

Actual Schematic

Would it be possible to get an actual schematic to this amp instead of the TA2024 Application/Test Circuit from the Tripath Data sheet? The DTA-2 looks fairly close to the Evaluation Board minus a VDD Filtering capacitor and access to the Sleep/Mute/Fault Pins.
Asked by: JDoyner
Yeah I doubt the actual schematic will be provided. I did some simple continuity testing and came up with an introductory cheat sheet dealing with the connectors and added basic LED and TRS stuff(1). With the TD2024 and EB-TD2024 datasheets(2,3,&4), I think I can make some educated guesses.
Answered by: JDoyner
Date published: 2013-04-02

How could I power this and a usb charger (5v) off of the same 12v input?

I have this working with a 12v power input, but I want to be able to charge an iphone off of the same power supply.
Asked by: Karen
Best way is to wire a 7805 regulator between the 12VDC input and the 5VDC output. This is available here (see below). Charging an iphone should not require a heat sink on the 7805. If the chip gets too hot, heat sinks are available at your local Radio Shack.
Answered by: Doc Jones
Date published: 2013-03-24

Would this external battery power this amp?

I have a 12v 5ah sla battery but its kinda big. Was wandering if a Anker astro3 10000mah external battery pack would work says it is switchable between 9/v/12v? Here is some specs from amazon.Astro3 Spec:-- Input: 12 V / 1A-- Output: DC 9V / 12V 2A, 2 x USB 5V 2A (dual charge @ 2A Max)-- Minimum required current: 80mAh-- Size: 4.9 x 2.9 x 0.9 inches; Weight: 10.2 ounce-- 18 months warranty
Asked by: Argmister
That looks like it would be able to power the amplifier with no problem.
Answered by: Chrisf
Date published: 2013-06-13

What is the input impedance of this amp

Asked by: Mast
That is a great question. I don't know why, but there are a precious few of us in the DIY audio community who care about input/output impedance. No manufacturers seem to care, and some of them use blatantly incorrect information (see the obviously false output impedance of Parts Express product number 180-997--and I've even posted a question to clarify).Anyway, the input impedance of the Tripath chip in the DTA-2 is 100K ohms. *IF* there are no resistors in the signal path that would change that, it would be 100K ohms. I have not gotten out a magnifying glass and followed the trace, but it is my belief that there is a resistor network in front of the chip signal input that brings the overall input impedance down to about 10K ohms. I'm sure that isn't what you wanted to hear but I think you need to plan on it being as low as 10K ohms for design purposes.No passive pre-amps without an op-amp buffer with input impedance that low :(
Answered by: Honest Rob
Date published: 2014-03-28


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