cheap Chinese amp modules on ebay . Anyone know what they are ? - Page 4

jives11 · 10th November 2008, 09:10 PM

Actually it looks like it could be this :

http://www.alfaservice.ro/index.php?...oducts_id=3392 ?

albin · 10th November 2008, 09:45 PM

.But who put them there,I wasn,t dissapointed
regards
max

bishopdante · 11th November 2008, 03:58 AM

it was so cheap, I just had to find out what was in there!

so it turned up, obviously I didn't bother plugging it in, straight out with the screwdriver.

Well, what's inside is a bit of a shocker. It's like a really cheaply made headphones amp. The sticker on the bottom rates it at 2W per channel, and that's optimistic.

The most shocking thing was the quality of the PCB, which is about 1/2 a millimeter thick, and screwed direct to the chassis, which makes it warp like nobody's business.

Also, the volume knob is illuminated by an LED which is just floating around in there not attached to anything but PCB.

This is now a distortion pedal, basically. I'm gonna make some samples by torturing the little ******, hook up the speaker cables to a jack which goes into the front of a good guitar amp (not mine, in a rehearsal studio), and put a marshall into the front of it, and record the sound of it dying a horrible death. £10 well spent, and I get a fun blue box to put a class D amp in.

albin · 11th November 2008, 07:05 PM

Jives11
mental led flashes red green & blue,chip underboard pastes to case base
regards
max

delog · 27th November 2008, 05:34 AM

TDA8210 ~ ~ ~ in the 80s to the mid-1990s cassette tape recorder to see now that no one would like to use the~

~

Eva · 27th November 2008, 07:54 AM

If it wasn't funny enough, with the help of SMD, 4-layer PCB and plannar magnetics, a 2x180W rms amplifier fed from 12V with SMPS could be really fitted into these tiny enclosures...

I squeezed 2x150W @ 4 ohms class D with 12V SMPS into 17cm x 10cm x 5cm

Cool and small 2x150W class D full-range car amplifier

With LCD display, bass, trebble, volume, input gain, power up defaults...

But Chinese are certainly not up to the job

It could be a nice challenge to actually fit a 2x180W amplifier into that case...

albin · 28th November 2008, 04:35 PM

Yes.the one i got sounds wonderfull,clarity,stereo,dynamics,it works.
regards
max albin

10th November 2008, 09:45 PM	#32
albin diyAudio Member Join Date: Aug 2008	It,s probably unethical to buy from china .But who put them there,I wasn,t dissapointed regards max

11th November 2008, 03:58 AM	#33
bishopdante diyAudio Member Join Date: May 2004 Location: London	I got one of those it was so cheap, I just had to find out what was in there! so it turned up, obviously I didn't bother plugging it in, straight out with the screwdriver. Well, what's inside is a bit of a shocker. It's like a really cheaply made headphones amp. The sticker on the bottom rates it at 2W per channel, and that's optimistic. The most shocking thing was the quality of the PCB, which is about 1/2 a millimeter thick, and screwed direct to the chassis, which makes it warp like nobody's business. Also, the volume knob is illuminated by an LED which is just floating around in there not attached to anything but PCB. This is now a distortion pedal, basically. I'm gonna make some samples by torturing the little ******, hook up the speaker cables to a jack which goes into the front of a good guitar amp (not mine, in a rehearsal studio), and put a marshall into the front of it, and record the sound of it dying a horrible death. £10 well spent, and I get a fun blue box to put a class D amp in.

27th November 2008, 05:34 AM	#35
delog diyAudio Member Join Date: Nov 2008	TDA8210 ~ ~ ~ in the 80s to the mid-1990s cassette tape recorder to see now that no one would like to use the~~

27th November 2008, 07:54 AM	#36
Eva diyAudio Member Join Date: Oct 2003 Location: Near the sea	If it wasn't funny enough, with the help of SMD, 4-layer PCB and plannar magnetics, a 2x180W rms amplifier fed from 12V with SMPS could be really fitted into these tiny enclosures... I squeezed 2x150W @ 4 ohms class D with 12V SMPS into 17cm x 10cm x 5cm Cool and small 2x150W class D full-range car amplifier With LCD display, bass, trebble, volume, input gain, power up defaults... But Chinese are certainly not up to the job It could be a nice challenge to actually fit a 2x180W amplifier into that case... __________________ I use to feel like the small child in The Emperor's New Clothes tale

28th November 2008, 04:35 PM	#37
albin diyAudio Member Join Date: Aug 2008	so is it any good? Yes.the one i got sounds wonderfull,clarity,stereo,dynamics,it works. regards max albin


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10th November 2008, 09:10 PM	#31
jives11 diyAudio Member Join Date: Mar 2004 Location: Hampshire	Actually it looks like it could be this : http://www.alfaservice.ro/index.php?...oducts_id=3392 ?

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