2.1 TDA2030 amp from ebay - Page 3 - diyAudio
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Old 16th February 2011, 03:07 AM   #21
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Hi, i just purchased one of these amp and i was wondering how do i hook the audio input because theres only 3?
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Old 17th February 2011, 09:11 PM   #22
eladmi is offline eladmi  Germany
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It is a stereo input. Onle left, one right and one ground connection. You will have to solder it.
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Old 6th April 2011, 12:34 AM   #23
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Sorry to bump a kinda old thread, but I was searching for some help on this kit and run across this thread since I just purchased one of these too. That message that he sent you was for a different TDA2030A kit that he sells that I purchased awhile ago. I think he got the 2 confused on your order. Not sure if it matters now if its running safely but you may want to solder those parts in if you haven't already. I gotta admit these are pretty cool kits on the cheap for a newbie like myself, not bad for a PC speaker amp setup.

A couple of questions, is yours still getting pretty hot? Mine almost burnt my finger but my heatsink was much smaller, I was wondering what size heatsink would be needed?

Also, any recommendations on a transformer? I have a 24VCT 1.5 amp transformer, seemed to do OK in my limited run on my small heatsink for about 10 minutes or so. But it seems I read 1A per chip is best, which would mean 4A transformer @24VCT?

Oh, I plan to run each output into a 4 ohm speaker.
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Old 13th May 2011, 05:04 PM   #24
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Smile My version TDA2030 2.1

My version 2.1 tda2030
http://www.te1.com.br/2011/05/circuito-de-amplificador-audio-tda2030-2-1-subwoofer/

Click the image to open in full size.
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Old 30th May 2011, 03:48 PM   #25
amptech is offline amptech  Scotland
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@Eladmi, in-regards to the module getting hot place a cooling fan on the main heatsink in order for the power ic's not to go thermal shut or burn out... if you look at most amplifiers o/p stages you will see large heat sink's and cooling fan's...
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Old 30th May 2011, 04:29 PM   #26
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Quote:
Originally Posted by caxxxxxx View Post
Also, any recommendations on a transformer? I have a 24VCT 1.5 amp transformer, seemed to do OK in my limited run on my small heatsink for about 10 minutes or so. But it seems I read 1A per chip is best, which would mean 4A transformer @24VCT?

Oh, I plan to run each output into a 4 ohm speaker.
With a 24 VCT transformer you should get something like 16 W into 4 Ohm. Look for a transformer with more than 64 VA, 4 A at 24 VCT seems reasonable.
For full blast you will need a heatsink with a thermal resistance of 0,5 K/W at 60 W. If you listen at civilized levels you may get away with something much smaller, e.g. 1,2 K/W at 45 W.
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Old 20th October 2012, 03:04 PM   #27
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Default tda2030 overheating

I read here that this amp kit seems to be getting hot, and using 4 ohm speakers right have u tried using 8 ohm speakers yet. Or is the problem with the power end of it which would effect the regulators getting hot. My reason for this is the 8 ohm speakers will draw less current then the 4 ohm let me know if this helps
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Old 25th October 2012, 01:39 AM   #28
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Eladmi a good work you have there. I am currently building a bridge audio amplifier using TDA2030 but i am facing challenges with the tone controls. Please can you assist me with a proper circuit diagram for it.
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Old 20th March 2013, 05:02 PM   #29
Pdwhitt is offline Pdwhitt  United States
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Default Power transformer for TDA2030a 2.1

I'm still trying to figure out the correct power for my TDA2030a 2.1 TDA2030A 2 1 Circuit Amplifier Stereo Audio 2 Channel Subwoofer Amplifier Board | eBay It calls for dual 12 volt AC power input. I will probably use 4 ohm speakers. I found the following three options:
(1) 24V 4A for $12.95 at MPJA 24V, 4A Center Tapped (12-0-12) Transformer-Marlin P. Jones & Assoc. Inc.
(2) 24VCT 2A 48VA for 13.95 at Jameco 24V, 4A Center Tapped (12-0-12) Transformer-Marlin P. Jones & Assoc. Inc.
(3) 24VCT 4A 96VA for 25.95 at Jameco GTR-22404: JAMECO VALUEPRO: Power Supplies & Wall Adapters

Any suggestions on which might work better for me?

Thanks,
Paul
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Old 21st March 2013, 06:07 AM   #30
Mihkus is offline Mihkus  Estonia
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The cheapest one is just fine.

I would get toroid transformer instead of E I energy wasting and heating piece of iron...
Sometimes you may need to rewind your transformer...
Maybe the E I s are welded and rewinding toroid is simple and clean.
Bought 5 250VA toroids 12€ each from poland and ive had lots of fun with them,
Always in need to get diferent voltages and many many outputs...
Even my silent pc is running on regulated supply driven by toroid
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