Chinese Kits EBAY - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 22nd July 2011, 02:25 PM   #1
diyAudio Member
Join Date: Oct 2009
Location: 2400 - San Francisco - Argentine
Default Chinese Kits EBAY

Someone proved these kits:

- HIFI TDA7294 x4 BTL Power amplifier AMP Board 150W+150W | eBay

- Pre-AMP Amplifier KIT Tube 6N2 SRPP Good for DIY | eBay

How do they work?

Thank you
  Reply With Quote
Old 22nd July 2011, 03:31 PM   #2
diyAudio Member
Join Date: Mar 2007
Location: California
Regarding the amplifier module (4x TDA7294) this looks like a dual bridge configuration, giving you two channels. In that case, each chip amp is handling 1/2 the load you put on the channel. This would imply about 6-8 ohms minimum for each channel - lower impedance loads will draw more current than is recommended for the chip amp and they will heat up considerably. Also, the price seems to be very low for what is on the board, so the possibility of low quality or fake parts is high.

Let me clearly state that I am saying all this only from looking at the picture of the finished amp and that I do not have any direct experience with it.

  Reply With Quote
Old 22nd July 2011, 05:26 PM   #3
diyAudio Member
Join Date: Oct 2009
Location: 2400 - San Francisco - Argentine
Dear Charlie:
Very thanks for you response. I was trying the LM3886 and it wanted to prove the TDA 7294. In my country -Argentine- it is difficult to obtain original parts. A few years ago arm a Leach low TIM amplifier and a SRPP (ECC82) preamp (Elektor circuit, line pre only) )and I want to make something new. I Listen jazz, clasic and pop music.That you recommend to me?


  Reply With Quote
Old 22nd July 2011, 06:15 PM   #4
Boydk is offline Boydk  Denmark
diyAudio Member
Join Date: Feb 2010
Location: Aarhus, Denmark
Have tried the 6N2 buffer/preamp, it´s a killer for the price, even better if you change the tubes to russian 6N2P-EV, then you can´t buy any finished product that will give the sound, specially to your preferred genre of music :-)
And Adason, you´re wrong, it´s not only the pcb, but all components included. Real or Fake :-)

Last edited by Boydk; 22nd July 2011 at 06:17 PM.
  Reply With Quote
Old 22nd July 2011, 06:25 PM   #5
adason is offline adason  United States
diyAudio Member
adason's Avatar
Join Date: Nov 2004
Location: Maryland
yes, I realized that, so I deleted the post
  Reply With Quote
Old 22nd July 2011, 07:05 PM   #6
diyAudio Member
Join Date: Oct 2009
Location: 2400 - San Francisco - Argentine
Thanks to all.
I am going to prove one and then I tell them.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
DC on output of Chinese 'current mode' ebay amplifier ben12345 Solid State 20 28th May 2010 08:27 AM
has anyone experience using one of those Chinese DAC kits from Ebay? jarthel Digital Line Level 1 27th January 2010 11:06 AM
ready-to-use Ebay Chinese DACs jarthel Digital Line Level 0 6th June 2009 12:40 AM
Chinese "knock off" kits from ebay tmort Solid State 15 27th May 2009 12:46 PM
cheap Chinese amp modules on ebay . Anyone know what they are ? jives11 Chip Amps 36 28th November 2008 04:35 PM

New To Site? Need Help?

All times are GMT. The time now is 06:41 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2