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Dayton Audio DTA-2 Class T Digital Audio Amplifier Module

Brand:| Model: DTA-2
Product Video
Overview
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.
Highlights
  • 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 # 
300-385
Weight: 0.25 lbs.  
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List Price$25.99
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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
  • Special FeaturesClass T,Board Only Module
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
    (56 Reviews)
  • Weight0.25 lbs.
  • Case Qty195
  • 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.

View similar products to the Dayton Audio DTA-2 Class T Digital Audio Amplifier Module
in the Audio Amplifier Boards & Modules product category.

Reviews

Dayton Audio DTA-2 Class T Digital Audio Amplifier Module
Dayton Audio DTA-2 Class T Digital Audio Amplifier Module is rated 4.5357 out of 5 by 56.
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: 2014-02-03
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
Rated 5 out of 5 by from What a great little amp!This little thing is perfect for small projects and the sound is great. Be sure to use something to hold your pcb and use the rite soldering tip for the job.
Date published: 2014-01-25
Rated 5 out of 5 by from Great little ampBought this to build Bluetooth stereos for gifts. Pretty good sound from a small module.
Date published: 2014-01-23
Rated 5 out of 5 by from Simply Amazing.Even though I saw a lot of positive reviews on this little amp, I wasn't expecting much. Boy, I'm surprised. I bought it to use as an amp for a tiny little intercom speaker for a stage show. I knew I had something special in my hands when I started playing some mp3s through that little 2 1/2" speaker and they sounded surprisingly clear and articulate. I built the amp into an Altoids box like one of our other members here, and then plugged it into a couple of cheap Aiwa bookshelf speakers I use in my haunted house. I started playing Dark Side Of The Moon (my standard reference) and I was blown away. I have it turned up all the way and it's too loud sitting 20 feet away. And so clear -- I have no doubt that any distortion I'm hearing is due to the cheap speakers and not the amp.This is a gem for small projects, folks, and even though it used to cost less, it's still a bargain at this price.
Date published: 2013-10-18
Rated 5 out of 5 by from Love theseFirst things first the customer service is great and all questions get answered.Tech support is very helpfull as well.Now this amp module is great perfect size to put inside speaker enclosures and just enough power for to get the sound i needed.I build a small boombox with it was very easy to use this amp.Solder the speaker wires and figure out where to place it and your set.Very versatile and good for small projects.Going to pick up a couple more when i can.
Date published: 2013-09-21
Rated 4 out of 5 by from Dayton DTA-2. Tiny amp, big sound.I bought this little amp to make a small portable speaker box. Installation was easy. I like the seperate volume control.I used a cheap set of 4” coax car speakers (Boss CH4220), but it sounds good. I only wish I had some control over the bass and treble levels.I have it running on a 12v SLA battery. So far I’ve played it at a low volume for about 5-6 hours. The battery still read 12.8v last i checked.I haven’t cranked it past half volume since it’s just been used in the garage and the backyard. At 50% volume, it’s plenty loud for a backyard party.Well worth the money.
Date published: 2013-09-09
Rated 5 out of 5 by from Great little amp!I used this amp to make a small boombox. This is my first project and I am pleased with the results. The boombox is loud and clear with no distortion. If you are looking for deep bass you might need more power. Here is a list of the parts used. I bought everything from parts express except the box itself.Dayton Audio DTA-2 Class T Digital Audio Amplifier ModulePart #: 300-38512 VDC 2000mA 2A Switching Power Supply US and EU 2.5mm plugPart #: 120-0524-1/2" Silver Cone Treated Paper WooferPart #: 299-002Penn-Elcom D0944K Dish One 1/4" Black 4" x 4-3/8"Part #: 262-324Penn-Elcom Z408116 Dome Amplifier Knob ChromePart #: 240-2003.5 mm panel mount jackPart #: 090-3172.5mm Panel Mount DC jackPart#: 090-479
Date published: 2013-08-30
Rated 5 out of 5 by from Awesome Sound in Small FootprintSo far I've only soldered speaker wires and run a short test with this amp, and I was really impressed.The final project is to mount this inside a speaker cabinet similar to the perfectly portable B652 except I'm doing this with some old Pioneer tower speakers. I've got a 12V 5A supply hooked up to this and it gets wicked loud.Really happy with the purchase. I'll probably be buying more as they are the perfect size to embed in restoration projects etc.
Date published: 2013-05-24
Rated 5 out of 5 by from clear and loud!I've bought three of these so far and have not been disappointed. My only wish is for a little more bass. Easy to use!
Date published: 2013-04-30
Rated 4 out of 5 by from Fun!First one did have an issue (the magic smoke came out), but was repalced immediately. The second one does a great job of running a set of JBL 5 1/4 mid-woofers and Polk MOMO tweeters. Very big sound for such a small unit.
Date published: 2013-04-30
Rated 5 out of 5 by from Great little amp.So I bought this amp to put together a little portable boombox to use off a cigarette lighter socket in other family members cars (long trips + old radios with no inputs/CD/tape = sleepy driver). I used some very old high end car audio speakers that I had lying around (90's vintage Clif Designs). 5.25" midbass with 1" tweeters and a relatively low efficiency (something like 85db if memory serves but very high power handling and great clarity), so I wasn't expecting much. After completion, I must say that I'm very impressed. The sound quality is actually quite excellent, better by far than what you'll find in all but the highest end computer speakers. Though they aren't going to push a pair of 18"s (I wouldn't even try 8"s), they are very capable of pushing a normal pair of speakers to levels that will reach across the average yard or solidly fill a car interior. If you're looking for something to power a small or highly efficient speaker, it's hard to go wrong for the price.
Date published: 2013-04-22
Rated 5 out of 5 by from Worked greatPerfect for the small iPod speaker I built using this amp. Great sound and power for the very small footprint it produces.
Date published: 2013-04-19
Rated 4 out of 5 by from Not too bad for the priceThe Dayton Audio DTA-2 Class T Digital Audio Amplifier Module is not bad for the price. Just remember that it is only about 10 to 15 watts (dependent upon speaker impedance). I built the RockNDock project which used this amp. Sounds pretty good but the amp cuts-out if there is heavy bass and you are pushing the volume too much. But the amp is very compact for the 10 to 15 watts it delivers. Great little amp for most any application were you don't need a lot of volume, just comfortable listening.
Date published: 2013-04-11
Rated 5 out of 5 by from I just keep buying these! So fun!Love this little thing. Last week a friend came over who wanted to make a desk radio for his wife. We used a wood enclosure and two Tang Band 3" full range speakers. He actually made the wood enclosure sectioned off and had the internal volume to the exact cubic inch for what the Tang Band specs called for. Probably un-necessary but fun the same. Sinple little radio that will never be played above whisper volume. (Though I did CRANK it to test it and it was ridiculous for it's size and components.)Can't say enough about making little projects with these amps. I keep buying them and am trying to have two in my shop, in boxes, ready to go, at all times. I keep making stuff for friends and they love it. I post pictures on Facebook and everyone wants to know where to get this wonderful device??? PARTSEXPRESS.COM!!
Date published: 2013-03-25
Rated 5 out of 5 by from Great little bare amp, great soundafter reading few speaker builds, so I've gave it a try, man this little thing delivers, it pushes 2 6.5" woofers and tweeters no problem, the sound is clear and loud, great product, I've ordered few more just to build other speakers projects.
Date published: 2013-03-14
Rated 5 out of 5 by from As promised only more funThis little gadget is fun! This is the perfect thing for someone with a new soldering iron who hasn't tried it on an application they might use just yet. It's assembly is easy in a lot of ways and has a challenging step or two that just makes you feel like you've accomplished that much more.Promotes creativity for what you'll put this in. Will it be as small as possible in a little box? Will it be inside existing speakers? Will you put it in an unlikely item on its own or something you've cut driver holes in? Will you build yourself a little music maker on your own and put this in it? Batteries? Imagination is the limit with this since it weighs almost nothing and even with wiring has the footprint of a stack of 20 dollar bills. The board itself is smaller than a box of matches.I just got mine yesterday and it's fun! I am only a little worried about using the LED because other reviews had different people saying the light left after a day or two. I do not need it- but I will use it if I know it will work by cutting a hole for it in the enclosure. I don't want an empty hole / dead bulb so I guess I have to keep the drill still.I see myself buying more of these and having them on hand, actually. I'd like to be able to solve someone's audio problem by saying "I have a $20 piece of gear that will let you have music in your ______ room. Gimme $20 to order another and we'll open the box and use this one right now."
Date published: 2013-01-31
Rated 1 out of 5 by from Went through 2 of these..worked, and then done...used this to recieve a signal from bluetooth and send to dayton exciters. Worked great...for about a day. Then lost one channel...then the other. Really dissapointing.
Date published: 2012-12-31
Rated 5 out of 5 by from Easy PeasyInstructions were clear.. easy to assemble and drives my 50w Pyle PA Speaker horn to the max with zero distortion. Outperforms the RadioShack 200ma mini-amp.
Date published: 2012-12-04
Rated 5 out of 5 by from 1st Portable Speaker ProjectFirst things first...I'm an amateur :)I wanted to build completely portable speakers that I can take on my bike rides or when when hanging out at the park etc. I read the reviews for this little amp and I knew this was the right product for me.Pros:1. It has everything you need to push a pair of small speakers. (3.5mm input jack, dc jack, battery leads, left-right channel, power/volume control button.)2. It claims to push at 15watts RMS - Which it DOES, easily.3. Comes with all the wires that you'll need.Cons:If you are not good with a solder gun, then you'll have trouble soldering the wires onto the board - tight space. (Luckily, I managed to solder all the wires without frying the board haha)I hooked this amp to a pair of 3 1/2, 2-way Pioneer speakers. I built a little box for it, and it sounds AMAZING!!! I can crank it up to about 95% without any distortion. It is powered by a 12volt battery, which I happened to have laying around. I played these speakers indoors and outdoors over the weekend. My neighbors were impressed with the sound quality coming out of this set up.Oh side note, The LED light did not work. No biggie as I did not really care for it. Also, I had to change out the power/volume knob with a better one that I found at my local electronic's store - see pics (looks much nicer than the plastic knob it comes with).
Date published: 2012-11-13
Rated 5 out of 5 by from Worth every penny and then some.I built a boomcase using this little amp several different drivers and an old samsonite luggage case. It goes together pretty easily functions very well. The sound is very impressive considering the size of the board. It draws hardly any amperage and ran for a combined 24 hours with a 35ah battery on a three day camping trip. The battery metered at 12.4 volts at the end of the trip. I will be building more cases around this little amp.
Date published: 2012-10-27
Rated 5 out of 5 by from Still SurprisedI bought this to run my portable speaker build running 2 6.5" car speakers and I'm very very pleased. This stereo plays LOUD and clear with decent bass. Like most have said I can't believe how small it is, but don't let that fool you. The soldering was simple for an amatuer. Sounds better than the SMSL SA3 I first tried.
Date published: 2012-10-11
Rated 5 out of 5 by from Dayton DTA-2 ampThis really fit the bill for a small project amp.The only thing extra I did was to epoxy a small heatsink onto the output chip as I noticed it was getting a bit warm. It wasn`t an issue but I really drive these hard and it helps if you can keep them cool.I used this one inside a bose sounddock with the bluetooth device sold here. The sound quality was great and plenty loud for this project.
Date published: 2012-10-05
Rated 5 out of 5 by from T-amp powered "Green Beast" portable iPod boomboxI built the "Green Beast" with this T-amp. It plays loud and sounds very clean. Over 10 hours playback on (8) rechargeable AA batteries. The box is constructed of 1/2 plywood with green poster board then .08 thick acrylic sheeting. The speakers are JBL in-wall painted black from Hifibuys Nashville. It has blue-tooth and of course the color can be changed. https://plus.google.com/u/0/113459964719502857090/posts/466DHEomyUc
Date published: 2012-09-28
Rated 5 out of 5 by from Bang for the buckHonestly, my expectaions weren't too high even though I read the great reviews. I'm using this amp in a suitcase speaker project (my first audio project ever) and I'm thoroughly impressed. Worth every penny!
Date published: 2012-08-15
Rated 5 out of 5 by from A very good ampThis is a very good amp, and could be used for pretty much anything you could come up with. We used it to power a pair on in-ceiling speakers for a conference room. We set the maximum volume we wanted and stuffed it into the ceiling. It's been running continuously for a few weeks without distortion and I expect it will be up there for quite some time.Be careful though. When you have to soldier the speakers wires into this unit, it can be easy to create a soldier bridge to other components. I did that on my first one, and it destroyed the unit. Thankfully, these aren't too expensive to replace.
Date published: 2012-07-31
Rated 5 out of 5 by from Great Little AmpsSo far I have purchased 4 of these amps with 1 small hickup. One of the amps ran expremely HOT (manufactuing issue) but was quickly replaced by parts express - THANK YOU. This amp runs extremely COOL even when pushed hard.I bought this amp because of the Podzuma project in the parts express speaker building section. All amps are being used in 12V suitcase speaker projects and I am just amazed at the sound that comes from this thing. The sound quality is terrific for what it is - a small, light, portable amp that produces decent sound at an amazing price.Amp comes with a volume board that works terrific and an led harness (12V), which needs a resistor if you are going to use a 3-5V led.Love this product!
Date published: 2012-06-11
Rated 5 out of 5 by from Fun Novice ProjectI got this as part of a first project. I'd not done much soldering before and was concerned that my iron would be to big. Not a problem, all my connections went just fine on the first test. The test assembly took me about an hour as a noob. Great fun, excellent value.
Date published: 2012-04-22
Rated 5 out of 5 by from Very inexpensive and does what it says.I've ordered three of these little guys since the first one i ordered got stolen. The amount of power it delivers is more than plenty. For the price and the performance you get, you can't go wrong with this product. Also, doesn't seem to be very picky about the power source as i've powered it with 9v, 12v, 13.5v and connected straight to the car's "lighter" power.
Date published: 2012-04-13
Rated 5 out of 5 by from Boldly goes where no 25 dollar amp has gone before...I received my Parts Express care package in the mail this morning and 2 hours later I am listening to the most amazing sound stage and image that I've ever heard short of high end equipment costing hundreds if not thousands.I used the module to construct a standard amplifier with outputs for banana plug speaker connectors(Parts Express #091-1140) (2 required) and all the rest of the necessary wiring was included in the box with the module. When pushed to higher output levels, the bass does become a little muddy. This has a documented fix by changing the output capacitors. I do not intend to trouble myself with that as the output of this beast at absolute cleanliness is more than loud enough.And by the way, in homage to the CMOY amplifiers, I put this little monster in an Altoids box! Everything fit except the speaker lead ferrite cores. I left them out. I am temporarily powered the unit with a !2 volt !.2 amp wall wort adapter. I recommend ordering the adapter that Parts Express specifies. Photos attached. I could not be more pleased with the results and with Parts Express and their service. Total price- $22.86 + shipping and an Altoid box. Way more than anyone could expect for the money. I will order more of these little wonders later.
Date published: 2012-04-11

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.
Dayton Audio DTA-2 Class T Digital Audio Amplifier Module

i want to use this amp in a small boombox and would like to use a rechargeable battery pack what type of battery and or specs would be possible to use with this amp?

Asked by: enbarnes357
Any 12 volt battery will work with this amplifier module. I usually recommend a sealed lead acid type, usually 2Ah or more. The higher the amp-hour rating, the longer it will last. This can be recharged with our float charger, part number 365-008.
Answered by: MattP
Date published: 2014-02-12

Lost the output caps that came with the amp, Which caps would be a equal replacement?

Asked by: GARRICH01
The capacitor value is 0.165 uF at 100V.
Answered by: MattP
Date published: 2014-01-29

What size is the threading on the volume pot bushing? I have determined that it's not 1/4" or 3/8".

Asked by: briancispresident
Unfortunately this is not specific information that the manufacturer provided for us.
Answered by: MattP
Date published: 2014-01-20

Anti-static Precautions

Has anyone who has used this unit actually used any form of ESD protection, as in anti-static mats or wrist bands..? I received this unit yesterday but have put off un-baging it as I don't have either of these things; I'm considering just maintaining contact with a guitar amp chassis I know to be earthed while assembling.. :PI've read of people in the computer maintenance business dismissing ESD protection as paranoia and claim to have been servicing machines for years without using a wrist band and never having a problem; if one was to use a wrist band with this unit, how can you be sure that earthing yourself puts you at the same potential as the unit? Is it simply a given that items distributed in anti-static bags are at zero volts?Any light that may be shed on this controversial topic would be of great interest, thanks!
Asked by: DrummerKat
This amplifier is run using a 12 volt power supply. After it's unplugged, it only takes a short time for the capacitors in the power supply/amplifier section to discharge. When I service large amplifiers with huge blocking caps, I wait a few minutes after unplugging, then short the caps with an insulated wire. You won't need to do that here as this will drain pretty fast. You can wrap a simple copper band on your wrist or ankle, then run a "drain wire" to the nearest ground [cold water pipe/romex/]-anything that you are sure is linked to the house's earth ground and is solid. A 12 ga. wire will work fine. I don't see safety as "paranoia". While I've never been zapped--I know of others who have. Anyway, I assure you that this amp has safety in mind and you will be just fine. Try grounding your guitar to the same ground till this amp is enclosed. Good luck on a cool project!!
Answered by: Joe from San Francisco
Date published: 2013-11-11

Could I use one channel of this as a small bass guitar amp or would I need to build a preamp for the input?

I would like to put this in a little 6x9 4 ohm automotive speaker enclosure and use it as a portable bass amp. Would I need to build a preamp?
Asked by: PaulEllingsen
Yes, this amps input is designed for line level signals. Your bass guitar pickup(s) are a fraction of the input required. You also wouldn't have any signal control, such as tone. There are a few stomp boxes on the market that would increase your signal sufficiently.
Answered by: Nitnub
Date published: 2013-11-06

Use as a booster amp for car stereo AUX input?

Could this be used as a 'booster' amp - input from on iPod etc., with the output(s) driving the AUX input of a car stereo? What are the impedance-matching implications here? Thanks.
Asked by: KenKenKen
Unfortunately this is not a proper amp for this application. This uses a speaker level output and would likely fry the AUX input if you were to use it for such a thing. Usually you want to use a headphone amplifier or line driver to boost a line level signal like this.
Answered by: MattP
Date published: 2013-11-05

Hi,

8 or 4ohms? wattage? power supply for max output? will any of these knobs fit?
Asked by: speaker freack
4 or 8 ohm is fine. 15W @ 4ohm and 10W @ 8ohm. recommend a 2A 12vdc power supply (like Part #:120-052) and both of those knobs will work :-)
Answered by: Matt's Watts
Date published: 2013-10-31

Guitar amp?

Anyone used one of these as a compact guitar amp. I'd like to build an amplifier for acoustic guitar so little to no distortion is preferred. I'd also like to add a mic input, maybe guitar on one channel, microphone on the other(?)Any thoughts.Thanks!
Asked by: MusicCityAmps
Hello,You could use this amp for a small guitar speaker. A couple of pointers:1. I'd use 4 ohm speakers. Probably one on each channel.2. You HAVE to drive the amp from an active source (mixer, mic preamp, etc.). It has low input impedance--around 10K ohms. You can't just hook up a passive guitar pickup and expect good results. Sounds like your guitar is acoustic, so I'm assuming the pickup is active, so it probably will have low Z output. Make sure the output Z is less than 1k ohms.With those considerations taken into account, the Tripath amps work great for portable guitar amps. They are small and are very easy on batteries.If I were to use a setup like yours I'd set up a small mixer with XLR in for my mic and with a standard TS connector for my guitar. Use the mixer RCA output to drive the amplifier with two separate 4 ohm pa speakers. You don't need distortion, so there isn't really a need to have a special guitar amp speaker (make sure the PA speakers can go as low as about 60 hertz for the low E on your guitar). PA speakers are good mates for this amp since they are so efficient.If you are interested in ever going electric, build some boxes for 10 or 12 inch guitar speakers. Get a high efficiency speaker (like 100db/1W or greater). My Telecaster screams with my Tripath amp and a nice Jensen Mod speaker.Good luck and enjoy!
Answered by: Honest Rob
Date published: 2013-10-31

Does anyone know if there is a possibility to pull 5v from any place of this amplifier? or 3.6v? I need to power a bluetooth module

Asked by: CLange
Pin 1 of the TA2024 is a 5V regulated output for supply to itself, but the datasheet I found doesn't specify how much current is available. You can certainly try powering your Bluetooth module off of that pin, but I wouldn't guarantee that it won't damage the amplifier.
Answered by: Circuitsoft
Date published: 2013-10-22

2.5mm or 2.1mm 12v AC Adapter?

I looked through the questions and didn't see an answer, what size is the AC adapter jack on the board, 2.5mm or 2.1mm? Thanks in advance for your time.
Asked by: OutdoorsJase
This uses a 2.1mm power jack.
Answered by: MattP
Date published: 2013-09-27

About to use every resource this little guy has... I think. Help with power stuff?

I have put together a bunch of these for various uses and the uses of friends and family. Love this little guy.I have hooked it up with A/C, and the 8AA battery clip thing.I am about to make a portable player for a friend's teenage son. I am going to put it inside an enclosure with some full range speakers. He'll use his iPod to play it through a 3.5mm jack I'll install on the enclosure.He wants it to be battery powered and A/C powered. I think there is a way to do this, but am unsure. How do I do this- that's question 1.Question 2. I think I can also charge the ipod with this unit. Is that right? How?And #3. If I were to buy one of those sealed acid batteries, like I have seen other people use in the project gallery, in conjunction with this device, can I wire it so it plays when unplugged off battery and plays + charges battery when plugged in?Thanks!
Asked by: Spaker
I have run this same scenario through my head, as I love these amps and have built them into a number of projects.My solution to power the amp with both a battery as well as a plug in power supply (AC-DC) is to simply use a DPDT center off switch. Switch it one way to power off the battery, the other way to run off household AC through your plug in power supply. The center off allows you to turn it on and off without using the volume knob, which is nice if you usually use it at a particular volume setting as I often do. This is not only the simplest solution I have come up with, but also the cheapest. Amico makes a perfect candidate for this switch and can be found on Amazon. I buy them buy the 10 pack. Note that you will have to wire the battery separately from the wall adapter through the switch...if this doesn't sound fun you can also just simplify and attach a barrel plug the the batter pack and swap it with the wall power supply plug as necessary. Connect a 335-372 barrel plug to your battery, whether it be a 8xAA or a 12v sealed lead acid and just leave the wire hanging out the back of the enclosure for portable use.To charge and ipod you will need 5v at 1 amp to a USB connector. You can wire a 7805 +5V Voltage Regulator TO-220 directly to the power input on the amplifier which will step down the voltage from 12v to 5v. Just wire it to a USB connector mounted in the enclosure.Third question...yes you can wire it to charge the battery while it is plugged in but you are getting into something a little trickier here. I have not actually tried this yet, only thought it out (because I have been wanting to do exactly what you speak of...just haven't tried it yet). You need something that will feed the battery power without over-charging it and thereby degrading it's life span (or even destroying it) and at the same time not drawing too much power off of the AC power supply. (To do this you may need a higher amperage AC/DC power supply.) Maybe a cheap trickle charger? I am leaning towards a charging circuit that cuts the power charging the battery when it reaches a designated voltage...but I am yet to diagram one out. If you really want to take it this far look around on the web for a 12v charging circuit and ask around with any questions you may have.. lots of people on the web are helpful in my experience. That is my plan when I get around to it.Have fun with your project, these little amps are just great.
Answered by: Dj Sidetrack
Date published: 2013-09-29

Wiring LED

Neat little amp but I am not sure how to wire the LED. The instructions say to solder the LED to the PCB at point D - yet point D is occupied on mine by a plastic connector (as I see in a number of the product photos), to which an accompanying wire connects. Assuming they simplified the design since the instructions where written and this is indeed where the LED goes I temporarily connected to this wire to the LED (and the unit is on) the LED does not work. Can someone assist me in understanding this?
Asked by: BretJG
The kit comes with a small wire pigtail that plugs into the small white connector on the amp board. The LED plugs into the other end of this pigtail. If the unit is on and the LED does not come on, flip the leads on the LED and try again, the polarity is probably backwards.
Answered by: MattP
Date published: 2013-09-12

How can I add FM Tuner?

How can I add an FM tuner to this amp?I can't find a separate tuner board or kit here.I want to make a portable radio/amp out of a used mini keg can.
Asked by: LiDave
You will have to use an external tuner that has a line level output in order to plug it into the module's 3.5mm input.
Answered by: MattP
Date published: 2013-08-22

This thing runs hot. Am I damaging it?

I've used this in a few boombox builds and am very impressed with its output, clarity and reliability. I've noticed that the TA2024 chip gets hot enough to burn fingers when it's running at max volume. Is this okay for the chip or should I put a heat sink on it?
Asked by: Sleezy D
You are probably only doing slight heat wear, that will lower it's projected life span, but nothing that should fail catastrophically. I personally, just bought an 8 peice chipset heatsink set, with 1x1.5 cm aluminum sinks and pre-applied heat goo, and used one on each board I have. Total cost was like $9 from some Chinese import website, and no more heat issues. Probably will increase your projected board life by ~40-50%, or atleast I hope it will. Best of luck fitting those little heat sinks to your boom boxes!
Answered by: Richard Rubner
Date published: 2013-08-20

Does the Dayton Audio DTA-2 amp come with any installation instructions or ideas?

Any install video on your website?
Asked by: mfpage
yes you can download the Dayton amplifiers manual to the right of the catalog page on the website it'll be in PDF format and that will give you all the information that you need.
Answered by: Nitnub
Date published: 2013-08-15

What is the part number of the LED light that comes with this kit?

For my project I need two lights and need to know what the part number is so I can order it.
Asked by: dbrown4444
We do not sell that specific LED separately although the one below will work fine as a replacement.
Answered by: MattP
Date published: 2013-08-05

Is this a 2ch amp?

Asked by: mdfreeze
Yes.
Answered by: MattP
Date published: 2013-07-31

Will this amp drive 60w 4ohm component speakers?

I'm building suitcase boombox and was thinking of using this amp with the Bravox CS50S speakers on buyout here at PE: http://www.parts-express.com/pe/showdetl.cfm?partnumber=269-500Sorry for the newbie question...
Asked by: Seattler
Yes the DTA-2 will power those components without a problem.
Answered by: MattP
Date published: 2013-07-05

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

If i connect a 12v battery to the terminals on the board will plugging in a power supply charge the battery? Is there any way to do that?

Asked by: jstroud
Unfortunately no, the power supply is only designed to power the amplifier and could damage a battery if plugged into one.
Answered by: MattP
Date published: 2013-05-20

Recommendations for a better potentiometer?

Hi, I love this little amp so far but for one exception: I would like a better volume pot. This one is tiny, cheap and flimsy. Can anyone recommend one that would work with this? I have already isolated the power leads to the stock pot and hooked them to a separate switch, so the only thing I need is a good volume pot, not an on/off/volume pot. The seven-pin connector the original uses, though, confuses me. If anyone can give me (in layman's, beginner terms) a recommendation on a good volume pot to use, and how to wire it to either the plug or the pcb itself, I would be very appreciative. Thank you!
Asked by: Diverted
Since you're a novice and most likely have little or no circuit tracing experience, I think replacing this component is not a good idea. It is a dual or gang pot to control 2 channels an power off/on each wire must be identified and wired properly to avoi damage.
Answered by: Nitnub
Date published: 2013-04-28

Anyone have any clue how to provide power to a usb BLueTooth receiver along side one of these amps from one power source?

Particularly the BT-1A Bluetooth reciever
Asked by: Snailovercello
A solution would be to use a Voltage Regulator IC. Depending on your PS you might want to add some smoothing capacitors to keep it stable, but if your just using batteries I wouldn't bother.PE sells some of the 78xx series. You would want the 7805 (PE Part#: 7805)
Answered by: JDoyner
Date published: 2013-04-03

Solder Line in

I want to directly solder the line out from the PE SD card player to this amp.How best should I attempt to do this?
Asked by: madmadscientist
The DTA has an input jack, simply remove it and solder in the audio cable.
Answered by: Nitnub
Date published: 2013-03-30

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
The only schematic we have available is in the PDF below:http://www.parts-express.com/pdf/300-385m.pdf
Answered by: MattP
Date published: 2013-03-27

Resistor to help LED fail issue?

I have noticed that many reviewers have had issues with the included LED failing. What type of resistor would I need to add to lessen the chances of this happening and how would I wire it?Thanks
Asked by: DJStronkinson
Every LED design would have a current limiting resistor. I look under a USB Microscope around the LED plug and couldn't find one! It looks as though it is hooked to the 5V supply pin 1 from the TA2024. I could be wrong since it is late and it is hard to guess where stuff is going under solder mask. However it look like a direct path to +5V. Shame on the designer if this is true.A typical Yellow LED has forward voltage drop of 2.1V(max 2.5V) and forward current of 10mA. This would suggest a Resistor value of 250-290 ohms. E12 Series resistor value of 270 ohms or 330 ohms for dimmer but safer value. Place this resistor in series with the long lead of the LED.To find the current limiting resistor value its simply ohms law (Ohms=Volts/Amp). So find the difference in voltage (Supply Voltage minus LED Forward Voltage Drop = 5-2.1 = 2.9) and divide by forward current of the LED (10mA = 0.01A)R = (Vs - Vfd)/IfR = (5 - 2.1)/(0.01)R = 290ohms
Answered by: JDoyner
Date published: 2013-04-02

Confirm Capacitor Wiring

I'm a bit confused on exactly how the capacitors should be wired without a visual. I am going to wire two 8ohm speakers in parallel to create 4ohms. The DTA-2 manual says to "Solder an output capacitor across the speaker terminals in parallel with the speaker wires." Does my simple digram attached correctly reflect how the wiring should be done in my situation? (of course, there will be two identical channels in the finished product)Thanks
Asked by: DJStronkinson
Yes your diagram is correct.
Answered by: MattP
Date published: 2013-03-20

can you add a 12v led strip from the power source of the amp ?

both being 12v .
Asked by: wraith77
Yes you can. As long as your power supply can power both devices, you can hook the amp and strip controller in parallel. Be warned that LED controller could add noise to your audio output. Filter caps or a more elaborate set up (LC Circuit to notch the switching noise of the controller, this can be difficult to get right) might be needed to eliminate the noise.
Answered by: JDoyner
Date published: 2013-03-19

when dta 2 soldering the capacitors do i solder them in between each wire each

meaning do i solder speaker wire , capacitor, speaker terminal .
Asked by: wraith77
The capacitor should be soldered in parallel either close to the board or next to your terminals of your project box holding the amp.
Answered by: JDoyner
Date published: 2013-03-18

Does this amp have remote turn on capability?

I mean, does this sense the input and turn on? I want to pair this with the PE SD player module with remote control. I'd really like to be able to have the amp and player both turn on when you hit power on the remote.
Asked by: madmadscientist
Unfortunately no, this amplifier uses a switching volume potentiometer for its power feature.
Answered by: MattP
Date published: 2013-03-08

Splicing power from the Pot

Ok once i find the output from the pot and i want to splice power to say a 5V mp3 would i just cut the out put solder in a restrictor and then the mp3? Would that cut down the voltage to the whole amp to 5V?
Asked by: Pychoz
It may be possible but I wouldn't mess with that. This thing is designed for 12v 2A and works magically at just that. I'd be afraid of frying something with that approach. This is a TINY amp that comes perfectly ready to go with (your own) wall wart that is 12v 2A. You can buy one here or sift through your old electronics, go to a used electronic store, a pawn shop, a local electronics store and find this power supply with ease. These things are around. And start saving your old wall warts from ANYTHING in a shoebox. Start looking for them at flea markets, garage sales, anywhere you see used electronics for sale. I know even some video game stores that accept trade ins have this kind of stuff. I found three at a pawn shop and the guy didn't even know what to charge me. I got all three for $5.
Answered by: Spaker
Date published: 2013-03-11

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