Lepai T-Amp with TA2020

[srinath]

I got the lepai amp too. I like it though I'd definetly say its a bit harsh.
Now is there any seller on fleabay who will combine ship them. Like like it costs 10 bucks to ship one. But if you cram 5-6 in 1 box, that can ship for 15. The seller I got my 1 from seems to want to charge 9 bucks for shipping each if I buy 5.
Thanks.
Srinath.

[msj965]

Originally Posted by Ekand

Hello

New to this forum, I have been reading this thread for about two weeks byt i cant seem to find any information of how I can bypass the tonecontrolls.

Could someone please post an image an explaine where and how it is done.

Best regards

Fredrik

I'm playing with some of these Lepai for some friends. If in the stock form they sound good, after a couple of little mods the improving is really stunning.
Please allow a burn in period (around 100 hours) for the best sound (the bass become fuller and warmer).

About bypassing opamp and tone controls:

-replace first input capacitors with some good film cap (2,2uF up to 4,7uF: the bigger the capacitor the bigger the 'bump' when switching on the amp);

-replace input resistors with 20/22k;

-connect one side of the new input capacitors with one side of new input resistors.

ET VOILA'.
Attached Thumbnails
Lepai T-Amp with TA2020-inp1.jpg #266

[Ekand]

I cant click your attached file!!

Fredrik

[goodgnus]

I have a few questions about the Lepai TA2020 (the version with the blue LED).

This first question might seem obvious, but I'm asking just to be sure: What position would I turn the bass and treble dials in order to have the Lepai sound like they were being bypassed? I assume the answer is straight up, as in 12 o'clock... but is that really right?

Also: how does the Lepai TA2020 compare to the Topping TP20 that Arjen is selling on eBay?

I lack the vision needed to monify one of these, so I'm looking for the best sounding option out of the box that will last. I'm starting to get crackles out of my Lepai after less than a year (I think the connector for the power supply is the problem). I realize this is the DIY forum, so I hope you don't mind helping me find a non-DIY option, but you folks seem to be the experts on these amps by a wide margin!

[srinath]

I opened my lepai from the back. The front has one screw that wont come out, so I didn't get the front off. Now the IC is glued to the base with that white glue. Scrape it and unscrew the board form the base, and take the front off and its gonna pop right out. Sit it on a metal plate so The IC is touching the metal and run it and figure out what is crackling.
I dunno the TP20 I'll check. That's all I know, someone else may provide you the answer though.
Oh, I think 12 o clock will have 0 effect on bass and treble ...
Cool.
Srinath.

[srinath]

OK so does the Lepai have this chip - Mitsubishi M51515L AF IC ? The thing looked like it when I opened it, and the 14 pins matches tha tone.
Cool.
Srinath.

[LosNir]

No, it has the Tripath TA-2020 IC.

[srinath]

OK I'll open mine again and check. mine looked an awful lot like the thing only had 14 pins though.
Cool.
Srinath.

[Bone]

Not all Lepai amps use the Tripath chip.

[LosNir]

Have you looked at the title?
If Srinath's Lepai is not LP-2020 then it not the place for discussion.