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Old 28th July 2008, 07:50 PM   #1
rhing is offline rhing  United States
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Default Another Tripath Amplifier from China

Has anyone seen or tried one of these:

eBay: T-AMP Digital Amplifiers HI-END TA2024

The board looks to have some implementations of ideas from the Sure Electronics T-amp board thread: DC bias pot, thru-hole mounted input cap, one power cap per channel, etc.
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Old 29th July 2008, 04:30 AM   #2
Davet is offline Davet  United States
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This particular T-Amp doesn't seem to have a volume control. You will either have to use a preamplifier or a passive linestage. Otherwise it "looks like" a keeper.
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Old 29th July 2008, 07:33 AM   #3
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Now this one really does look like the Tripath Evaluation board !
It even has the screen print of the Logo
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Old 29th July 2008, 09:38 AM   #4
ElFishi is offline ElFishi  Europe
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not quite.
http://www.datasheetcatalog.org/data...th/mXwtryv.pdf
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Old 29th July 2008, 09:53 AM   #5
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OK, it's not identical, they introduced the DC null circuit but come on... it's pretty damn close @ the output

And with a SMPS thrown in with cabling.... it's pretty good value!!
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Old 29th July 2008, 11:27 AM   #6
ElFishi is offline ElFishi  Europe
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Okok,

gnd-rail, tank-caps and inductors, diodes, mute & sleep jumpers are placed quite the same way as in the EB.
Input is different: DC trimmers, as mentioned coupling caps in nice thru-holes.
What are the black thingies btn the input sockets and the coupling caps?
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Old 29th July 2008, 12:29 PM   #7
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Quote:
Originally posted by ElFishi
What are the black thingies btn the input sockets and the coupling caps?
Ferrite beads that the input signals pass through.
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Old 29th July 2008, 02:04 PM   #8
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Hi Folks,

look what I have found else in their ebay-shop:
http://cgi.ebay.com/YULONG-T-AMP-Dig...QQcmdZViewItem

This one I was interested in before and a real bargain for the price I think..
I was told that Yulong was run out of production and the following
Poppulse substitues the serial. But these are much different amps.
Different Chips, , different designs, different output power.

What do you think comparing these ones ?
The small box for 30 USD with the Yulong. Eventually comparing both
with the Poppulse ??
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Old 29th July 2008, 03:39 PM   #9
ElFishi is offline ElFishi  Europe
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mind the shipping costs
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Old 29th July 2008, 03:45 PM   #10
Livin is offline Livin  United States
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anyone used one of these eBay $20-$30 amps from China?

I'm thinking it should be fine for ceiling speakers.... wish there was a volume control.

Sonic Impact amps are way overpriced on ebay now... it is crazy!
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