Fostex FE166, MarkAduio Alpair12 or other? - 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 June 2011, 03:21 AM   #1
triode3 is offline triode3  United States
diyAudio Member
 
Join Date: Dec 2010
Default Fostex FE166, MarkAduio Alpair12 or other?

Having read quite a bit, I still have some questions about a horn in my room. The listening room is rectangular, 16' x 30'. The speakers will have to be placed on the long wall, in the middle. This was fine with my B&Ws, however, I am moving to two tube amps (one PP 2A3, 14W and one SE 300B, 7W). I want to do a full range driver. I at one time had audio nirvanas, which were nice, but not a horn. They were 8s.

I am thinking about the Fostex 6.5" (or 8"?), or possible the MarkAudio. I do have a subwoofer for my room (18" JBL 2245H, 8 cubic foot cab, low power amp, variable crossover, I need the big woofer for the room, it does not move much, but it is plenty), but the real question (I think) is would a horn be ok in here? I though you needed a good deal of room for the horn to operate well (from the horn to the listener). After you pull them away from the back wall, there is only about 12' or so between them and the listener. Is that acceptable?

Next question, would the Fostex be ok in here? The 6.5" or the 8"?

Finally, if the fostex is ok, why does no one build the recommended enclosure form Fostex? I note that everyone builds a bib (BTW: that guys site is down and you can not download the calculator), or some other type of back loaded horn... is the Fostex design terrible?

Any insight appreciated. Thanks.
  Reply With Quote
Old 3rd June 2011, 03:54 AM   #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 triode3 View Post

Finally, if the fostex is ok, why does no one build the recommended enclosure form Fostex?
Because it is not very good.

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 June 2011, 04:09 AM   #3
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
BiB with Fostex FE166en is sweet though - I have one. 12' is more than enough for good listening. But beware, BiB with FE166en will be pretty big - around 54" x 11" x 15" if I remember correctly. Other double mouth horn designs will be quite large too. Good thing about the BiB is that build is very simple.
  Reply With Quote
Old 3rd June 2011, 04:54 AM   #4
mp9 is offline mp9  United States
diyAudio Member
 
Join Date: Jun 2006
The "Victor" is rather interesting double mouthed BLH in development for the 6.5" fostex driver however i can't say when it'll happen, haven't heard back from Scott L on it. Woden Design | Fostex
There has been talk of a 6.5" driver Frugal horn, again don't know if and when it'll happen. Also cant say if the design will be flexible enough to work with both the 6.5" Fostex and Mark Audio A12.
Speaking of which, Mark F. (MA), is looking into doing a paper cone A12.3.
I already have a 6.5" Fostex and plan on getting a MA A12.3 too. My preferred amp for my primary system is my 3.5watt Fi 2A3.
Full range 6"-6.5" is a good compromise size-wise. I don't think you can go wrong with either but suspect the whizzerless MA driver will have the edge on the FE166.
  Reply With Quote
Old 3rd June 2011, 05:04 AM   #5
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 mp9 View Post
The "Victor" is rather interesting double mouthed BLH in development for the 6.5" fostex driver however i can't say when it'll happen, haven't heard back from Scott L on it. Woden Design | Fostex
Bernie will have his down here soon. He has FE166eSR, i am preparing FE166eN^2 so we can listen to both.


Quote:
There has been talk of a 6.5" driver Frugal horn, again don't know if and when it'll happen.
Some false starts on that one. It may well end up being something completely different if it can get sorted. FH3 is turning out to be something real special in its versatility.

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 June 2011, 02:01 PM   #6
jimbro is offline jimbro  United States
diyAudio Member
 
Join Date: Nov 2010
Location: somewhere in Texas
I was under the impression that 12' was too short for a double mouth horn to integrate? BIBs could be thrown together out of chipboard easily to see if they work for you since you don't have corners to put them in. Will the FE166En work in an AustinA166? For 8" you could go with a Half Chang. Be careful with the Half Chang though. Mine attacked me yesterday. It jumped out of my arms and stomped on my bare toes. I now regret filling the area behind the mouth with sand.
  Reply With Quote
Old 3rd June 2011, 02:05 PM   #7
triode3 is offline triode3  United States
diyAudio Member
 
Join Date: Dec 2010
Hrm, good information. I have yet to find actual dimensions/drawings of any of the mentioned cabinets for this driver. I see a lot of talk about the BIB, but again, the software (spreadsheet) is unavailable. The Victor is "under development" and no drawings are given.

I can not steam bend (or bend) birch for Rons A166 project. The Hiro (Sachiko) from this page (The Spawn Family of Double Horns) has plans... I know BLH are large, but at 6' tall I am starting to get into the "wife won't have that one" territory...

Perhaps I am being a bit too whiny, but I suppose I am looking for something like the Frugel for a 6.5" Fostex and not the 4".

It would almost be worth it to buy them from this guy: Frugel-Horn Mk3 flat-paks
If they were for a bit larger driver. I don't think the 4" will do well in my room size...
  Reply With Quote
Old 3rd June 2011, 02:30 PM   #8
diyAudio Member
 
Join Date: Oct 2005
Since the OP has a subwoofer, in his place I would probably make compact speaker cabinets for the fullrange units, not big horns.

For alternatives in that size, also check out the Tang Band W6-1916:
http://www.tb-speaker.com/detail/1230_04/w6-1916.htm
I have not heard any of these high end TBs but they sure are nicely made.

Specifically for the use with a subwoofer, this Visaton B200-based design seems interesting as well:
Visaton - Lautsprecher und Zubehör, Loudspeakers and Accessories
  Reply With Quote
Old 3rd June 2011, 03:09 PM   #9
mp9 is offline mp9  United States
diyAudio Member
 
Join Date: Jun 2006
Quote:
Originally Posted by triode3 View Post
The Victor is "under development" and no drawings are given.

I can not steam bend (or bend) birch for Rons A166 project. The Hiro (Sachiko) from this page (The Spawn Family of Double Horns) has plans... I know BLH are large, but at 6' tall I am starting to get into the "wife won't have that one" territory...
Quote:
Originally Posted by jimbro View Post
Will the FE166En work in an AustinA166?
Victor will prob look like a thinner version of the Vulcan (8" driver). May be somewhat smaller because of the curved back but still on the large side.

Ron's A166 has been used with 168EZ and 166EsR by reducing the compression chamber volume. When i asked Ron C about the A166/FE166EsR he gave me the reduced size of the compression chamber but also told me that the Austin 166 wasn't designed to be used with that driver so not optimum. The plans for the A166 where lost and no clear plan is available so you have to wing it based on what is on the Frugal horn site. Someone here began posting a revision for use with the 166EsR and never continued to the end, no idea if he ever built them. There was a "Layertone" A166/ stacked CNC'ed X sections which has curved folds and i think the presumed abandoned (EsR), drawings showed a curved folds option. You don't have to use them, in fact not doing so will prob be better by restricting high fq's from making their way back up the horn path (or something like that).
  Reply With Quote
Old 3rd June 2011, 08:01 PM   #10
jimbro is offline jimbro  United States
diyAudio Member
 
Join Date: Nov 2010
Location: somewhere in Texas
How about the Thirlmere bipole http://homepage.mac.com/planet10/CSS...aps-080909.pdf using 2 el70s per cab? You could side mount one driver like the coniston^2 since rear firing would not work for you. I think that would satisfy the room and the wife. Another idea would be 2 fh3s per side. Turn one upside down and stack it on top of the other or just incorporate them into one cabinet but integration may be a problem.
  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
Filter for Abbeys and Fostex FE166 Magura Full Range 107 4th April 2007 07:16 AM
No sub needed for Fostex FE166 BLH fin1bxn Full Range 1 11th March 2007 06:34 PM
Fostex FE166 BLH admiration fin1bxn Full Range 2 23rd February 2007 12:22 PM
Fostex FE166-esr FS jeremyg Swap Meet 2 16th August 2005 02:47 PM


New To Site? Need Help?

All times are GMT. The time now is 03:33 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