Fostex FX200 - 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 19th July 2012, 07:51 PM   #1
diyAudio Member
 
Join Date: Nov 2009
Location: Germany
Smile Fostex FX200

hi,

after some years of hard work no it's some time for some Speakerbuilding ....



Any ideas for building a enclosure for a pair Fostex FX200?


Click the image to open in full size.
  Reply With Quote
Old 19th July 2012, 08:31 PM   #2
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by FX200 View Post
hi,

after some years of hard work no it's some time for some Speakerbuilding ....



Any ideas for building a enclosure for a pair Fostex FX200?


Click the image to open in full size.


Bob Brine's T18-F200 for one:

T18-F200

$25 for a PDF of detailed plans is dirt cheap


__________________
now on sabbatical
  Reply With Quote
Old 19th July 2012, 09:08 PM   #3
diyAudio Member
 
Bob Brines's Avatar
 
Join Date: Jan 2003
Location: Hot Spring Village AR
Quote:
Originally Posted by chrisb View Post
Bob Brine's T18-F200 for one:

T18-F200

$25 for a PDF of detailed plans is dirt cheap

Sorry, no. My speakers are for the F200A. The FX-200 has been out of print for a long time and I never had my hands on one.

Bob
  Reply With Quote
Old 19th July 2012, 09:23 PM   #4
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by Bob Brines View Post
Sorry, no. My speakers are for the F200A. The FX-200 has been out of print for a long time and I never had my hands on one.

Bob

oops - time to clean my glasses



to the OP: are full T/S parameters available for these drivers, or can you measure them?
__________________
now on sabbatical
  Reply With Quote
Old 20th July 2012, 01:55 AM   #5
Bigun is offline Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Blog Entries: 2
Quote:
Originally Posted by FX200 View Post
Any ideas for building a enclosure for a pair Fostex FX200?
Lucky man - I've read about these drivers a couple of times over the past few months - my perception is that they are really nice drivers, smooth and detailed and perhaps one of the best that Fostex made. You can't buy them anymore.
Attached Files
File Type: pdf FX200-8.pdf (104.8 KB, 86 views)
__________________
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
  Reply With Quote
Old 20th July 2012, 12:59 PM   #6
diyAudio Member
 
Join Date: Nov 2009
Location: Germany
Quote:
Originally Posted by Bigun View Post
You can't buy them anymore.
Yes.

Some years ago i build a Tqwt for the FX200, but it is a little to big for the new apartment. Thats the reason for searching new ideas.
... but anyway i like the FX200!

Click the image to open in full size.

here some quick and dirty messarument:

Click the image to open in full size.
  Reply With Quote
Old 20th July 2012, 02:18 PM   #7
Bigun is offline Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Blog Entries: 2
Looks terrible, tell you what, send the drivers to me and I'll find a use for them
__________________
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
  Reply With Quote
Old 20th July 2012, 03:07 PM   #8
Greg B is offline Greg B  United States
diyAudio Member
 
Join Date: May 2004
Location: Los Angeles, California
Honestly, your best bet is to just build the factory enclosure. While it has the usual BR coloration, it tends to smooth out the sound of the driver. A TQWT or ML-TL is also appropriate. I had a pair in TQWT. They were great AFA detail and dynamics, but the inherent 4kHz peak made them somewhat fatiguing, even when notched out. For whatever reason, the smaller reflex box mellows them out enough that no filter is needed.
  Reply With Quote
Old 20th July 2012, 05:12 PM   #9
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Bigun: thanks for finding the specs for this driver so quickly

Let's for the moment overlook the rather smooth looking FR graph - there could well be enough data on the T/S parameters for someone so inclined to plug the numbers into their favorite modeling software and come up with something not so compromised as the bog standard BR "Factory recommended" enclosures have often been found to be.

FWIW, if there's as much family resemblance between the FX200 and F200A as between the FX120 and F120A, (of which I've had occasion to hear all but the first listed) these could certainly be worth the effort.

My intuition is that an MLTL would be on the short list - when you say that the TQWTs are too large for the new venue, it could save some time if you could elaborate on the space constraints - particularly floor space/footprint.


edit: from MJK site / project gallery - perhaps the builder might be available to elaborate/ My skills are too limited to provide a direct link, but Martin's site does have e-mail addresses linked to some of the project photos - this one's about 2/3 down the gallery - the builder's name is Jeremy MacLennan..

Click the image to open in full size.
__________________
now on sabbatical

Last edited by chrisb; 20th July 2012 at 05:26 PM.
  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
Swap: Fostex T825 for a higher efficiency top tweeter by Fostex, Coral etc anubisgrau Swap Meet 1 22nd July 2012 07:12 PM
FS: 2 super tweeters Fostex T90A + 2 attenuators Fostex AT50H merlin el mago Swap Meet 7 29th October 2010 10:14 PM
Looking to buy a single Fostex FX200 speaker... tmaseq Swap Meet 0 25th November 2006 05:36 PM
Fx200 Scottmoose Full Range 16 7th September 2006 06:37 AM
Fostex FX200 FS jeremym Full Range 0 16th January 2005 12:29 AM


New To Site? Need Help?

All times are GMT. The time now is 05:35 AM.


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