Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

Multiple Channel gainclone (transformer question)
Multiple Channel gainclone (transformer question)
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 31st August 2008, 05:32 AM   #1
llmobll is offline llmobll  United States
diyAudio Member
Join Date: Feb 2005
Location: UCSB
Send a message via AIM to llmobll
Default Multiple Channel gainclone (transformer question)


I'm trying to figure out how to power my monster 7.1 gainclone beast. I haven't mapped out the power (watts) per channel part out, but i was wondering..

Will a single retifier work for all 8 channels? Reason I ask is i'm trying to convert my 2 channel amp to multiple channels, and i'm not entirely sure if i should use a retifier for every 2 channels.

might sound dumb, but i'm curious.

  Reply With Quote
Old 31st August 2008, 08:26 AM   #2
pacificblue is offline pacificblue  Germany
diyAudio Member
Join Date: May 2008
You want to know, if there is a rectifier big enough for a power handling that you haven't defined yet?

Well - don't worry. There are recifiers big enough for any amplifier that you can design. Look here for an example. That thing is good for 2000A at 250kV.
  Reply With Quote
Old 31st August 2008, 09:00 AM   #3
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
you can run multiple channels inside one amplifier chassis. I wouldn't.
I like the amps beside the speakers, with very short speaker cables resulting in long interconnects at line level.

Do you have a single rectifier fed by a centre tapped transformer or dual rectifiers fed from dual secondaries?
regards Andrew T.
  Reply With Quote
Old 3rd September 2008, 02:56 PM   #4
tangmonster is offline tangmonster  South Africa
diyAudio Member
tangmonster's Avatar
Join Date: Jul 2007
Location: Cape Town
MY input:


This is going to be used for movies? Depending on your standard listening volume one 500VA transformer should be good. 600VA should be more than good enough.

Build a decent dual bridge rectifier circuit with a decent 2 winding toroidal.

Read through this web page:

  Reply With Quote
Old 4th September 2008, 11:41 AM   #5
kuldeepsingh is offline kuldeepsingh  India
diyAudio Member
kuldeepsingh's Avatar
Join Date: Aug 2006
Location: Chennai, India
Send a message via MSN to kuldeepsingh
for my 8-chennel amplifier basedon lm4780, i am using a 800 va transformer with dual rectifier units (one for each channel).

And the system is running fine in terms of normal heating of rectifier diodes and transformer.
. . .. ... ..... ........ ............. ..................... ..................................
My Blog
  Reply With Quote


Multiple Channel gainclone (transformer question)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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Multiple subwoofer/multiple amp question boogs Subwoofers 5 13th November 2007 04:36 AM
question about multiple input transformer in same tube mic pre. limey222 Tubes / Valves 0 12th January 2007 12:15 AM
First Gainclone. AX-730 Transformer Question. bezel6 Chip Amps 14 22nd January 2006 10:08 PM
multiple 6x9 speakers at one channel tobler Car Audio 3 24th November 2005 07:35 PM
Multiple primary power transformer question trombone Tubes / Valves 7 23rd May 2005 04:36 PM

New To Site? Need Help?

All times are GMT. The time now is 11:44 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio