Projects for FE108eS/FE126 - 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 27th September 2006, 10:42 PM   #1
Rafal is offline Rafal  Canada
diyAudio Member
 
Join Date: Nov 2003
Location: London Ontario
Dave,

About that "Fostex midrange magic" ...

What fostes drivers best exhibit it? Also, would a Visaton B200 be simmilar in that respect?

Thanks,

Rafal
  Reply With Quote
Old 27th September 2006, 11:02 PM   #2
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by Rafal
About that "Fostex midrange magic" ...
It is hard to beat the FE108eS, modded FE127e & FE126e are not far behind, and even stock they are quite good. FE167 to a lesser extent. My experience with the bigger drivers is less extensive, but my generally feeling at this point is that they give up mids & tops in a quest for lower bass and higher efficiency.

I'm working to see how much i can extract out of FE167 & a 207 + foster bullet project is in the wings.

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 28th September 2006, 03:13 PM   #3
Rafal is offline Rafal  Canada
diyAudio Member
 
Join Date: Nov 2003
Location: London Ontario
Quote:
Originally posted by planet10


It is hard to beat the FE108eS, modded FE127e & FE126e are not far behind, and even stock they are quite good. FE167 to a lesser extent. My experience with the bigger drivers is less extensive, but my generally feeling at this point is that they give up mids & tops in a quest for lower bass and higher efficiency.

I'm working to see how much i can extract out of FE167 & a 207 + foster bullet project is in the wings.

dave
Dave,

What enclosure would you recommend for the FE108ES or FE127e & FE126e ? What would be the ultimate in achieving a full range? I am thinking probably some kind of horn, but I'm not sure which would be best.

Cheers,

Rafal
  Reply With Quote
Old 28th September 2006, 04:49 PM   #4
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Rafal - having built all of the designs listed below (in some cases several pairs of each during the prototyping & refinement process), allow me to offer my observations. I'm sure Dave will add his own comments.


FE126:
1) Ron Clarke's A126 - not yet having built the "Spawn/Moosehorn" or the Metronome, I'd have to nominate this design as squeezing the last ounce of peformance from this driver - although with the supra-baffle and rear deflector the WAF isn't great. (c'est la vie!)
2) Frugelhorn
3) Buschorn MkI (not MKII) - modified of course to fit larger driver than original 83mm.


FE127:

1) best bang for the buck in a small non-horn box- monopole Fonken ( I've yet to build a bipole version)
2) easier build, but not quite the performance - monopole DIY reference MLTL
3) still very simple build (just more material) but much better performer in the right room - bipole MLTL
4) Tom Zurkowski's PAWO - just don't use MDF - wonderful in laminated bamboo/baltic birch plywood if your materials budget will allow

the above ordering could change if I ever get to build/hear a pair of the Spawns or 'gnomes.

saving the best for last if you can adjust to the "shortcomings" of the FE108ES - with a little tweaking (i.e. volume reduction) of CC, they work very well in most of the same designs as the FE126e


Just remember that any of the bipole or horn designs are far more room sensitive than most monopole sealed or BR boxes.
  Reply With Quote
Old 28th September 2006, 04:57 PM   #5
Rafal is offline Rafal  Canada
diyAudio Member
 
Join Date: Nov 2003
Location: London Ontario
The FE126 sounds like a nice driver. how does it compare to Fe108es especially in the bass department. I would think it can go lower and a back loaded horn can help even further. Is that right?
  Reply With Quote
Old 28th September 2006, 05:02 PM   #6
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by Rafal
What enclosure would you recommend for the FE108ES or FE127e & FE126e ? What would be the ultimate in achieving a full range? I am thinking probably some kind of horn, but I'm not sure which would be best.
For the 108 & 126, If you have corners the Frugel-Horn, if just walls then the RonHorn A126.

For the 127 either Fonkens or the PAWO. In the PAWO you have to be careful about early bounce off the back wall. Our mules (BB with an MDF back & no suprabaffle, shoe just a bit of this, the bamboo ply with BB back and a suprabaffle which effectily moves the driver about 30 mm further away from the back wall, did not suffer and sounded noticably better.

The diyAudio 127 ref ML-TL is the easiest build, sounds good, but the bass is a bit wooley in comparison to the Fonken.

Any of the 127 boxes, i suspect, with a treated driver will surpass and of the other boxes with a stock driver. 126s deserve treatment too. I haven't played with enough 108s to know whether they can be gilded.

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 28th September 2006, 05:13 PM   #7
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by Rafal
The FE126 sounds like a nice driver. how does it compare to Fe108es especially in the bass department. I would think it can go lower and a back loaded horn can help even further. Is that right?
Better bass, more efficiency. Rougher sounding than the 108eS (not many drivers have the FE108eS finese in the mids). Treatment takes away the roughness, but they still don't have the 108eS finese, but it is a horse-race and room, amp, and listening style will all factor into which is best in any particular system/

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 28th September 2006, 10:33 PM   #8
Rafal is offline Rafal  Canada
diyAudio Member
 
Join Date: Nov 2003
Location: London Ontario
Can you guys point me to the final design (and reviews) of the Ronhorn A126?

And on another note, how would the sound be of a Ronhorn A126 (with modded Fe126 driver) vs. Visaton b200 OB?
  Reply With Quote
Old 28th September 2006, 11:29 PM   #9
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by Rafal
Can you guys point me to the final design (and reviews) of the Ronhorn A126?
Attached is a pdf that includes all the pdfs that are in the Full-Range gallery. This isn't the most up-to-date version -- that i believe only existed on the gainclone forum which is gone now. i have the picture saved ... it is low rez (but still big). Most of the info can be picked out of the pdf and then tweaked -- CC & suprabaffle i believe are the changes.

It is my intention to eventually redo the docs to the same level as the (still unfinished) Frugel-Horn docs.

Quote:
And on another note, how would the sound be of a Ronhorn A126 (with modded Fe126 driver) vs. Visaton b200 OB?
Visatons going under the knife later today, a comparison coming up... on 1st blush i'd say both are quite good, but not the same...

dave
Attached Files
File Type: pdf ronhorn-austin-a126.pdf (41.0 KB, 275 views)
__________________
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 28th September 2006, 11:30 PM   #10
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
updated pic... hopefully this fits....
Attached Files
File Type: zip ronhorn-aff126e-rev-ha.gif.zip (96.0 KB, 279 views)
  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
Remembering the fe108es DaveCan Full Range 0 1st February 2008 05:52 PM
Need help for my FE126 vangogh-hk Full Range 4 19th January 2008 05:38 AM
The Fostex FE126 Smokehouse Bob Full Range 8 17th February 2007 01:05 AM
FE108ES Recommended BLH Type Enclosure ???? vexator Full Range 5 3rd April 2006 12:19 PM
Fe108ES horn recommendations wyomitch Full Range 1 31st January 2005 08:43 PM


New To Site? Need Help?

All times are GMT. The time now is 01:26 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