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

Solid State Talk all about solid state amplification.

High Current Leach/leach super amp
High Current Leach/leach super amp
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 24th January 2011, 02:14 PM   #41
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
Originally Posted by wg_ski View Post
Probably. Four 18's in parallel with a 5.6 ohm DCR will go down to about 1.4 ohms at box tuning. So instead of 50A, you need 70. But not 130. The woofers just simply can't draw any more than this unless you feed them more voltage. Any other effect, be it reactance, back EMF, or horn loading will cause the impedance to RISE not fall. So design for 80+, and call it good.
But you do have some science on your side.
A filtered bass only signal will have much slower transients and these slower transients will not demand the higher levels of current that a wideband 2way with passive crossover would.

Have you read any technical literature on transient peak currents into speakers?
regards Andrew T.
  Reply With Quote
Old 2nd March 2011, 02:15 PM   #42
bowdown is offline bowdown  Australia
diyAudio Member
Join Date: Feb 2004
Location: Perth
Originally Posted by Tony View Post
wonder how bowdown did with his subwoofer, it's been more than 5 years ago....
Hey guys,

Dont know what happend, I didn't get any emails from Diyaudio to say there were some new replies..I guess the thread was too old. I ended up getting a Crown 1400 CSL to run the sub as I just could not get any time to research and build something. I had to get rid of the sub and amp some time back ..I still have most of the components that I had bought all those years back.. I'm slowly getting more time so who knows, I might still try out what Bocka suggested all those years ago just to give me something to do when I have the free time ..I dont need all that power any more especially at such a low impedences. Sticking to more efficeint speakers now . Glad that things are still happening on the forums, I've been so lost here.


Keep up the DIY spirit!!
  Reply With Quote


High Current Leach/leach super ampHide 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
Leach Super Amp HELP ... Ahmad_tbp Solid State 22 28th December 2009 05:44 AM
leach super amp with +/- 78V lenti Solid State 1 21st July 2002 03:00 PM
I need some help with super Leach amp! supernet Solid State 5 22nd April 2002 09:27 PM
Leach amp vs super Leach amp supernet Solid State 0 21st February 2002 10:16 PM

New To Site? Need Help?

All times are GMT. The time now is 04:50 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio