BK12 versus FH3 for FE126En without a corner... - Page 2 - 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 5th March 2012, 03:23 PM   #11
diyAudio Member
 
Godzilla's Avatar
 
Join Date: Nov 2005
Location: New York
>>> I always assumed (which I shouldn't do) that the stepped angles in so many of these DIY horns were a compromise for manufacturing ease.

They are AND they sound better. Diminishing the mids once you have your horns built is part of the fine tuning.

I like corners

If you don't have corners than i would consider a design that could sit closer to the wall. For example,

http://audiowood.com/gallery/images/JordanSpeakers3.jpg
  Reply With Quote
Old 5th March 2012, 03:23 PM   #12
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Quote:
Originally Posted by liamstrain View Post
vent = mouth

Interesting, I would never have guessed that a smoother horn path would decrease performance... I always assumed (which I shouldn't do) that the stepped angles in so many of these DIY horns were a compromise for manufacturing ease.
It might be in some cases, it's a functional part of the design / low pass filter in most of my designs.

Quote:
But maybe you are right about the 126 being too limited a driver. I'll have to ponder. Do you have any recommendations in the same general price range as the 126? (so probably no Alpair or Sigmas).
Fostex FF125wk, CSS EL70, MA CHR70 all come to mind. There are various Tang Band units too; a few are almost always on some kind of offer, so whatever looks reasonable in your price bracket.
  Reply With Quote
Old 5th March 2012, 03:51 PM   #13
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
It sounds like you're constrained from using corners in which the FH3/FE126E will do it's best, or any rear mouthed BLH. I'll venture to answer the initial question - I've heard both the BK12 and the FH3 with this driver, and AFAIC the latter enclosure is a better performer.

period

But back to your situation - is height an issue? If not, you might want to consider Pensil family ( versions for CHP/CHR70 and Alpair 7.3) , or if you're inclined towards a Fostex, a simple MLTL with FF125WK shouldn't be too much different than that in overall form factor.
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 5th March 2012, 04:05 PM   #14
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
You mean like this Chris?

Box for FF125wk. Internal HxWxD = 35.5in x 5.5in x 9in. Zd. = 7.125in. Vent 5.5in wide x 1.875in tall. Stuff cabinet 0.65lbs ft^3 dacron or similar & adjust to preference from there. A removable back will make that easier.
Attached Images
File Type: png Plots.png (67.3 KB, 224 views)
  Reply With Quote
Old 5th March 2012, 04:08 PM   #15
diyAudio Member
 
Join Date: Feb 2012
Location: Chicago
Thanks everyone, this is interesting...

Is the FF126En not suited to such an enclosure? (Too low a qts?)
  Reply With Quote
Old 5th March 2012, 04:17 PM   #16
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Correct, mass corner is too high without some help from the amplifier or Eq if you want to tune low. Linear travel is also rather less, so it tends to need more help from the box.
  Reply With Quote
Old 5th March 2012, 04:24 PM   #17
diyAudio Member
 
Godzilla's Avatar
 
Join Date: Nov 2005
Location: New York
>>> Box for FF125wk. Internal HxWxD = 35.5in x 5.5in x 9in. Zd. = 7.125in. Vent 5.5in wide x 1.875in tall.

Scott, your sim looks like it would provide some weight to the sound... Nice! I also notice you tune many of your cabinets to around 70Hz for Fostex drivers this size regardless of the physical size of the cabinet. Would you recommend a sub for these rather than stretching their bass response (and potentially spoiling their overall performance)... or do you prefer them 'as is' accepting them for what they are?
  Reply With Quote
Old 5th March 2012, 04:33 PM   #18
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by Godzilla View Post
>>> Box for FF125wk. Internal HxWxD = 35.5in x 5.5in x 9in. Zd. = 7.125in. Vent 5.5in wide x 1.875in tall.

Scott, your sim looks like it would provide some weight to the sound... Nice! I also notice you tune many of your cabinets to around 70Hz for Fostex drivers this size regardless of the physical size of the cabinet. Would you recommend a sub for these rather than stretching their bass response (and potentially spoiling their overall performance)... or do you prefer them 'as is' accepting them for what they are?


actually, a bit of both I think


Quote:
Originally Posted by Scottmoose View Post
You mean like this Chris?

Box for FF125wk. Internal HxWxD = 35.5in x 5.5in x 9in. Zd. = 7.125in. Vent 5.5in wide x 1.875in tall. Stuff cabinet 0.65lbs ft^3 dacron or similar & adjust to preference from there. A removable back will make that easier.

gee - looks almost too simple, a guy could bash a pair of those out in a couple of hours
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 5th March 2012, 04:33 PM   #19
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Quote:
well, yah, what took you so long
I know, I'm slowing up. Will try to do better in future.
  Reply With Quote
Old 5th March 2012, 04:34 PM   #20
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by Scottmoose View Post
I know, I'm slowing up. Will try to do better in future.

this post already orphaned by my edit of previous post

doesn't that just pi$$ you off
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  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
extend current usage of FH3(A7.3) to include HT jjl Full Range 14 24th January 2012 07:31 PM
A subwoofer love-child of FH3 and Shadow? Brisso57 Full Range 3 8th June 2011 07:20 AM
Frugel-horn Shootout FH1+ vs FH3 Alaska Bill Full Range 6 19th April 2011 07:16 PM
FE126En in MLTL slhijb Full Range 15 21st January 2011 09:33 PM
can FH3 beat out the Onken ? Bigun Full Range 7 8th December 2010 04:52 PM


New To Site? Need Help?

All times are GMT. The time now is 02:58 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