Ebay seller has solved the energy chrisis

woody · 7th August 2011, 04:09 PM

This ebay celler has a cheap 500w amp for about $15 look at the power requirements.

infinia · 7th August 2011, 04:37 PM

indeed for the time between the fuse going open.

what? there is no fuse, longer time for a crises to occur

wwenze · 8th August 2011, 01:45 PM

He's not the first nor will he be the last.

But aside from that, that looks like a cool new amp from Lepai. Not many manufacturers include clipping indicators.

Lepai Mini T Integrated Amplifer Great Sound | eBay

ingenieus · 8th August 2011, 02:50 PM

500W from 12V and in such a small enclosure? With no ugly heatsink in sight (hidden inside I suppose). And he's driving the speakers with the thin wires that will go into those clips! Will wonders never cease?

Give him an IEEE fellowship. And a Nobel prize in physics!

dangus · 18th August 2011, 08:23 AM

The featured amp looks like the Lepai LP-A2, which uses the TDA7057Q.
Guangdong Jieyang Bukang Household Appliances Factory
The outputs are bridged, and the Philips data sheet only talks about it doing 3W into 16 ohm loads. Lower impedance loads may not hurt it since it's supposed to be short-circuit protected.

Unless it's the AQ version... which is spec'd at up to 8W into 8 ohms. Neither version has an overload pin on the chip (unlike the TA2024). Maybe there's just a comparator to indicate overloads.

7th August 2011, 04:37 PM	#2
infinia diyAudio Member Join Date: May 2005 Location: Californication	indeed for the time between the fuse going open. what? there is no fuse, longer time for a crises to occur __________________ like four million tons of hydrogen exploding on the sun like the whisper of the termites building castles in the dust

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8th August 2011, 01:45 PM	#3
wwenze diyAudio Member Join Date: Mar 2008	He's not the first nor will he be the last. But aside from that, that looks like a cool new amp from Lepai. Not many manufacturers include clipping indicators. Lepai Mini T Integrated Amplifer Great Sound \| eBay

8th August 2011, 02:50 PM	#4
ingenieus diyAudio Member Join Date: Apr 2011	500W from 12V and in such a small enclosure? With no ugly heatsink in sight (hidden inside I suppose). And he's driving the speakers with the thin wires that will go into those clips! Will wonders never cease? Give him an IEEE fellowship. And a Nobel prize in physics!

18th August 2011, 08:23 AM	#5
dangus diyAudio Member Join Date: May 2004 Location: Vancouver Island	The featured amp looks like the Lepai LP-A2, which uses the TDA7057Q. Guangdong Jieyang Bukang Household Appliances Factory The outputs are bridged, and the Philips data sheet only talks about it doing 3W into 16 ohm loads. Lower impedance loads may not hurt it since it's supposed to be short-circuit protected. Unless it's the AQ version... which is spec'd at up to 8W into 8 ohms. Neither version has an overload pin on the chip (unlike the TA2024). Maybe there's just a comparator to indicate overloads.