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

400VA in an LM4780?
400VA in an LM4780?
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
Reply
 
Thread Tools Search this Thread
Old 1st April 2013, 03:04 AM   #11
gootee is offline gootee  United States
diyAudio Member
 
Join Date: Nov 2006
Location: Indiana
I can't see any reason to disagree. I think it's always best to use the highest-voltage transformer that can safely be used. Then you can have the most headroom possible, to avoid clipping, which is the most-likely way to damage your speakers. And it won't take as much reservoir capacitance to get the headroom, although you might still want a lot just to have lower ripple and sufficient transient current capability.
  Reply With Quote
Old 1st April 2013, 05:12 AM   #12
zimmer64 is offline zimmer64  Switzerland
diyAudio Member
 
zimmer64's Avatar
 
Join Date: Sep 2012
Location: Switzerland
400VA in an LM4780?
Quote:
Originally Posted by mortron View Post
Does it require any type of soft start etc?
Hi there,

With 400va you may want to add a softstart. The problem is the initial current inrush. In my first LM3886 the breaker occasionally came in. In my latest gainclone I use a softstart that I bought off the bay for $20 (ready to use) and it works fine with 2x400 va mono setup.

Best

Michael
  Reply With Quote

Reply


400VA in an LM4780?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
Wanted: Plitron 400VA transformer Nisbeth Swap Meet 2 28th December 2006 05:05 AM
Is 400VA enough for an Aleph30? hifimaker Pass Labs 36 9th December 2005 03:13 PM
FS: 400VA Torroids kestrel200 Swap Meet 6 27th April 2005 03:47 AM
FS : 3 toroidal 2*30V 400VA ZERS Swap Meet 0 24th January 2005 07:19 AM
Trannies 2x22V/400VA - and A5 Q Stabist Pass Labs 12 7th September 2004 01:37 PM


New To Site? Need Help?

All times are GMT. The time now is 03:32 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki