SureTA-2024 Board integrated in Lepai LP-2020 - Quad Channel amp - diyAudio
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Old 5th January 2012, 05:10 PM   #1
QT0815 is offline QT0815  Germany
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Talking SureTA-2024 Board integrated in Lepai LP-2020 - Quad Channel amp

Hi i like to present my little modding project. Till now i had installed this Lepai amp in my car, and connected a little subwoofer. My Radio is a good one, but i like to drive the frontspeakers with the Sure TA2024 board. But i don't have a lot of space. So i cut the top of and mounted it a little bit higher, so i am able to have a quad channel amp in almost the same space as before.

It is a little bit difficult to squeeze everything in there, but it seems like it is possible.

Here are my pics:

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Old 5th January 2012, 07:49 PM   #2
QT0815 is offline QT0815  Germany
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Old 6th January 2012, 09:31 PM   #3
QT0815 is offline QT0815  Germany
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Hello, i have finished my amp. And everything fits - barely but it does! I heard it, and tested the Sure amp against another from art0.de. This one i soldered myself.

I have to say, that the Sure TA2024 sounds very good. Christal clear, and a lot of deep bass! I am not sure, if it helped that i changed the input caps that i added 2 220uF low ESR caps.

Here are some pics:

I also added a relais 12V, which will later be switched with the remote out, of my radio in my car. Its glued to the on/off switch of the Lepai.

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It was a little bit difficult for me, to identify which are the input caps. Because i got a new version of the Sure TA2024 (V.300). Then i changed C22 and C30 against 2,2uF MKP from WIMA.
There you could also see, where i added caps for the supply.

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Here is a shot opended, you could probably image how tight it is in there..

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The backside, now there are 4 chinch connectors. And another one (its like an ATX 12V connector) for the loudspeakers.

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Now everything closed when testing

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Who will try it next ??
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Old 13th February 2012, 10:11 PM   #4
v-bro is offline v-bro  Netherlands
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Amazing how that fits mate!

One thing though, I see that done a lot, those thick speaker wires inside the box... It's not necessary... Take some 20AWG teflon coated wire, it's thick enough, even 22AWG would be fine for this amp...

If I were to build something like that I would take a TAA4100A amplifier instead.

In my car I have a pair of TA3020 amplifiers though, running on a switch mode DC-DC converter. Very nice, because it prevents ground loops at the source without disturbing the signal path.

Have a google at "Rod Elliot car SMPS" based on "SG3525"...
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Max. cone displacement can be several foot on any speaker!Too bad it can be done only once......
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