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.

Best kit for 2 ohm sub, 100W+?
Best kit for 2 ohm sub, 100W+?
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 5th September 2009, 12:07 AM   #1
internationalmanofmystery is offline internationalmanofmystery  Estonia
diyAudio Member
 
Join Date: Aug 2009
Location: Tallinn
Default Best kit for 2 ohm sub, 100W+?

I have an unusual sub I would like to power and am looking for the best kit amp to drive it. The sub has an F3 of 16Hz so ideally the amp should be flat from 10-100Hz. The sub is also around 2 ohm, potentially less in certain conditions. I only require one channel, 100W RMS or more.
Which is the most suitable kit amp for driving this load cleanly?
  Reply With Quote
Old 5th September 2009, 07:26 PM   #2
donpetru is offline donpetru  Romania
diyAudio Member
 
donpetru's Avatar
 
Join Date: Jun 2007
Location: Romania
Hello,

An audio amplifier in class B would be the best solution. For example, BJT audio amplifier with the ouput BJT preferably in capsule TO-3. In this way are many amplifer schematics that would suit your requirement, but will must be adapted to function in 2 ohms.

For example, If you make the diagram below, three pairs of transistors on the output and fed to a maximum + /-30Vdc, you can use on a 2 ohm speakers.

Best regards
Attached Files
File Type: zip SC480.zip (439.8 KB, 58 views)
__________________
AV400v2 and GX400 audio amplifier projects
PCB Design Services - for prototypes OR serial products, Today Tehnium and Forums
  Reply With Quote
Old 6th September 2009, 09:22 AM   #3
dangus is offline dangus  Canada
diyAudio Member
 
Join Date: May 2004
Location: Vancouver Island
Consider a chip-amp... the LM3886 can be run in parallel, using low-ohm series resistors. 4 should be safe even with 1 ohm loads.
  Reply With Quote
Old 6th September 2009, 09:10 PM   #4
nigelwright7557 is offline nigelwright7557  United Kingdom
diyAudio Member
 
nigelwright7557's Avatar
 
Join Date: Apr 2008
Location: Carlisle, England
Quote:
Originally Posted by internationalmanofmystery View Post
I have an unusual sub I would like to power and am looking for the best kit amp to drive it. The sub has an F3 of 16Hz so ideally the amp should be flat from 10-100Hz. The sub is also around 2 ohm, potentially less in certain conditions. I only require one channel, 100W RMS or more.
Which is the most suitable kit amp for driving this load cleanly?
You could use a standard 200 watt RMS 4 ohm amp.
At half volume it could still supply enough current for 2ohms.
__________________
PCBCAD51 pcb design software. 2018 version out now. http://www.murtonpikesystems.co.uk
  Reply With Quote

Reply


Best kit for 2 ohm sub, 100W+?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
Eti-480 100w Amp Help Please jacquesl Solid State 25 6th May 2017 09:05 PM
100w Stk nbcd Chip Amps 14 30th September 2009 02:36 PM
Evolve Amps 100W+100W Stuff 4 Sale WALTER BURKHARD Swap Meet 4 8th June 2005 11:57 AM
ETI-480 100W Amp .. please help jacquesl Solid State 25 29th May 2005 08:53 PM
100W amp Vivek Solid State 13 23rd December 2001 08:57 PM


New To Site? Need Help?

All times are GMT. The time now is 05:58 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki