help designing a Linkwitz Transform circuit - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 3rd November 2008, 09:03 PM   #1
blrh93 is offline blrh93  United Kingdom
diyAudio Member
 
Join Date: Oct 2008
Default help designing a Linkwitz Transform circuit

hi,

i am looking into building a Linkwitz Transform circuit to use with the fostex FE108EZ Sigma driver in a sonus faber style cabinet.

i dont really know where to start.

so and advice would be appreciated

thanks blrh93
  Reply With Quote
Old 3rd November 2008, 09:37 PM   #2
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Linkwitz transform exchanges vox volume for excursion & power handling. FE108eS is not really a suitable candidate driver.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 3rd November 2008, 10:12 PM   #3
blrh93 is offline blrh93  United Kingdom
diyAudio Member
 
Join Date: Oct 2008
ok, is there any way i can achieve good results with the fostex sigma drivers in ported cabinets?
as i like the style of the speaker and think it will fit well in the cabinted i have planned to make.
  Reply With Quote
Old 3rd November 2008, 11:07 PM   #4
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally posted by blrh93
ok, is there any way i can achieve good results with the fostex sigma drivers in ported cabinets?
as i like the style of the speaker and think it will fit well in the cabinted i have planned to make.

if you think of a correctly designed BLH or even BIB as a form of "ported" cabinet, and depending on your definition of "good results", then perhaps

If I'm interpreting the above post correctly, trying to shoehorn driver(s) with an appealing style into cabinets that I'll assume will also be designed primarily for aesthetics, is not likely to yield satisfactory results.
__________________
now on sabbatical
  Reply With Quote
Old 4th November 2008, 12:59 AM   #5
diyAudio Member
 
Join Date: Jan 2007
Default Re: help designing a Linkwitz Transform circuit

Okay, well since you said "any advice would be appreciated..." At the risk of merely re-phrasing what's been said:

Sure, you can reshape the LF curve of a given driver/box combo by applying a specially calculated EQ. But in doing so, you are throwing away efficiency.

This little driver is not a woofer. Sure, you could treat it like a woofer, but it might not be able to play loud.

If you need to back into the choice of driver, find the cab's volume, then plug that into WinISD (or similar) along with the params for whatever driver. And then repeat until you find something that looks okay. Could get tedious.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Linkwitz Transform Circuit skogs Subwoofers 1 27th October 2006 12:03 AM
Linkwitz transform circuit? Dxvideo Subwoofers 5 30th August 2005 03:20 PM
Linkwitz transform circuit in BruteFIR ? birkinshawc Digital Source 3 14th October 2004 08:25 AM
Designing a Linkwitz Transform sealed sub BAM Subwoofers 1 29th April 2002 12:32 AM
linkwitz transform circuit pkgum Multi-Way 8 14th December 2001 01:08 PM


New To Site? Need Help?

All times are GMT. The time now is 04:33 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2