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.

300W 8ohms mosfet amplifier for sub schematic ?
300W 8ohms mosfet amplifier for sub schematic ?
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 12th October 2003, 11:37 PM   #1
diyAudio Member
Join Date: Dec 2001
Question 300W 8ohms mosfet amplifier for sub schematic ?


does somebody know a good 250-300W in 8 ohms mosfet amplifier for subwoofer and where to find schematic for DIY ?

Thank you.

  Reply With Quote
Old 13th October 2003, 03:13 AM   #2
Mattyo5 is offline Mattyo5
diyAudio Member
Join Date: Aug 2002
Location: Farmington, CT
Send a message via AIM to Mattyo5
www.sound.westhost.com project 68

or www.aussieamplifiers.com

i just build aussieamplifiers symmetrical 400's amps, and they are 200 into 8 ohms and 400 into 4.....bass is terrific! effortless for sure and VERY tight and VERY punchy and VERY articulate. You might be able to increase the rail voltage slightly, if you have more outputs, like 12 per channel rather than 8...and better driver transistors, such as mje15032 and 15033 ...i've used them w/ great sucess w/ 68v rails. If you try 75v or 80...you might get a little more punch into 8 ohms and less into 4...but i personnally think 200 watts is a lot. 250 is about .5-1 db greater...and 300 is about 1.5 db greater than 200. Go w/ recommended rail voltage...70v. Later!

-Matthew K. Olson
  Reply With Quote
Old 26th July 2012, 08:40 PM   #3
FocusST225 is offline FocusST225
diyAudio Member
Join Date: Dec 2009
Search for "quasi" on this site. He has a great amplifier design and it sound awesome. I built the 500w version (10 x N-channel Mosfets per amplifier channel) Easy to build and and very reliable.
  Reply With Quote


300W 8ohms mosfet amplifier for sub schematic ?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
300w-mosfet Amplifier Help AUDISOUL Car Audio 3 31st December 2008 09:28 AM
AMPLIFIER SCHEMATIC USING OP AMP AND PAIR OF MOSFET's please zox2003 Solid State 12 16th March 2005 11:35 AM

New To Site? Need Help?

All times are GMT. The time now is 10:40 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