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

Eminence Beta 12 + FE126/7 on OB
Eminence Beta 12 + FE126/7 on OB
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 22nd December 2006, 10:47 PM   #1
bigwill is offline bigwill  United Kingdom
diyAudio Member
Join Date: Dec 2004
Location: UK
Default Eminence Beta 12 + FE126/7 on OB

For my next project I'm thinking of putting a Fostex FE126/7e on an OB along with an Eminence Beta 12 actively crossed over at around 400Hz. I want the to take away as much grunt work from the Fostex as possible to avoid excursion related distortion and I think the Beta 12 is a nice fast dynamic midbass driver to do the job. I don't think I will lose the fullrange "magic" because of this, in fact I think it will be enhanced. Deep bass is not the goal here, as I have transmission line subwoofers and will soon be building some OB subwoofers to go with these.

I'm just throwing the idea out there really, I think it's a very good one and could sound quite impressive, and I can't think of any reason not to do this. These are cheap drivers but when brought together could make something quite special

Does anyone have idea what kind of bass extention I can expect with a reasonable baffle? I'm hoping they'll at least be enjoyable without subwoofers, and reasonably neutral speakers without a huge amount of shout from the Fostex. Another thing I was wondering was if the FE126/7s needed tweeters. According to Fostex they extend beyond 20Khz and I don't mind listening on axis so will this be an issue?

Thanks for any help / suggestions / ideas / anything!
  Reply With Quote
Old 22nd December 2006, 11:07 PM   #2
Scottmoose is offline Scottmoose  United Kingdom
diyAudio Member
Scottmoose's Avatar
Join Date: Mar 2005
Location: UK
Few ways you can do it. My friend Martin King has a superb write-up on his site if you look int he projects section of his own OB project. See www.quarter-wave.com

Also probably of interest to you, is JamesD's way of working, which is somewhat different. James uses a narrower baffle, with small folds to the rear at the side, the helper woofer mounted as low as practicable, and the two drivers (FR and helper woofer) wired and crossed over in series.
"'That'll do", comes the cry of the perfectionist down the ages.' James May -The Reassembler
www.wodendesign.com Community sites www.frugal-horn.com http://frugal-phile.com/
  Reply With Quote
Old 23rd December 2006, 06:56 PM   #3
bigwill is offline bigwill  United Kingdom
diyAudio Member
Join Date: Dec 2004
Location: UK
This won't really be a helper woofer as such, more like a midbass and lower midrange driver. I think a lot of designs are lacking in this area and it would be good to have a seperate driver for this range.
  Reply With Quote


Eminence Beta 12 + FE126/7 on OBHide 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
F/S Eminence Beta 8a pair nvrgdenuf Swap Meet 1 1st August 2009 10:59 PM
Eminence Beta 15 jamikl Multi-Way 3 12th June 2009 05:04 PM
FS: Two eminence beta 12 LTA - like new zobsky Swap Meet 1 25th May 2009 10:04 PM
Eminence Beta 10's and 15's - Australia Brett Swap Meet 2 11th September 2007 08:31 AM
Eminence Beta 12 LT Thatch_Ear Multi-Way 2 18th August 2002 06:56 PM

New To Site? Need Help?

All times are GMT. The time now is 11:42 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