Gainclone Transformer - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

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 29th November 2012, 08:09 AM   #11
AndrewT is offline AndrewT  Scotland
diyAudio Member
Join Date: Jul 2004
Location: Scottish Borders
A gainclone is a specific implementation.

Most chipamps are not gainclones.
regards Andrew T.
  Reply With Quote
Old 1st December 2012, 01:36 AM   #12
diyAudio Member
danielwritesbac's Avatar
Join Date: Nov 2007
I'm curious if the kit, like the audiosector kit, was meant to be a dual mono and compact-specific design. I bought the stereo kit and I believe that the screamingly loud mids tone is counterproductive for music. The bus (not star) layout, the undersized NFB cap (bass block) and the undersize 100u (clearer Louder mids) amplifier board power caps seem to be the main causes, and Natsemi Spike hard clipper also contributes somewhat increased audio distortion if there's any loud playback.

Natsemi in their AN1192.pdf advises minimum of 470u power caps directly at the chip (aka amplifier board power caps). This specification partially fixes the stereo kit, although while 470u apparently works for parallel amp projects, maybe 1000u could be nicer for solo chips as seen in the kit.

I'm speculating that the dual mono kit could dull out the screaming mids by having a power board not more than 2mm away from the amplifier board. These boards are made to line up and be used as one unit. In that case, the 10,000u caps are close enough to, perhaps, swamp some midrange distortion. Hopefully, the dual mono system works well when used in compact layout--large capacitance close to the chips changes it to a "gainclone." Probably then it succeeds with inoffensive music playback. Adding up all the clues, results in 10,000u||1000u amplifier board power caps, same as the MyRef's power circuit.

The kit does seem useful for television. Personally, I'd much rather have the high-end made-for-music NatSemi LME chips for a more pleasant experience with music playback.
Tools, Models & Software for DIYClipNipper boostLM1875 TurboPowerful TDA7293 kitTDA7294 pt2pt ♦ My post has opinion.

Last edited by danielwritesbac; 1st December 2012 at 01:40 AM.
  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
6 A transformer for Gainclone ? AndrewGM Chip Amps 4 1st August 2009 02:12 PM
Looking for a transformer for a gainclone mc_grumpy_d Swap Meet 5 26th November 2008 02:35 PM
What transformer for Gainclone? SoundQuest Chip Amps 6 31st July 2004 11:37 PM
Gainclone Transformer gchrist Chip Amps 2 18th December 2003 05:57 AM
transformer for gainclone SQ Kid Chip Amps 12 8th April 2003 05:09 AM

New To Site? Need Help?

All times are GMT. The time now is 10:53 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2