Is this TL box OK for FE206E? - 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 4th December 2008, 03:17 AM   #1
diyAudio Member
 
Join Date: Dec 2008
Default Is this TL box OK for FE206E?

Hi, thanks for any help on this you can toss my way.

I recently picked up a nice set of boxes for not much dough. They are Audionics TL 30. There are no drivers, so it's hard to go on that- but I wanted the boxes for a full range project.

I know you should pick your driver and build your box to fit... but I don't have those resources at this time, and I DO have these boxes.

SO,

Box passage front is 42.74 sq inches area and 36.5" total length.
This gives front of .9 cubic ft

Box passage rear is 36.12 inches area and 23" length.
This gives rear of .7 cubic ft

Rear port size high on back is(I'm guessing way too big) 8" x 3.5"

I tried reverse engineering speaker driver to fit the box size.

It would appear the FE206e is a closer match than the FE166. Does this seem to fit what you reckon on this sort of box?

Any help would be appreciated

Cheers,

RW
  Reply With Quote
Old 4th December 2008, 04:54 AM   #2
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Can you do a sketch of the line?

Without doing any sims, my guess would be that FE207 has a MUCH better chance of working out in this box.

Lybb Olsen did some work on at least some of the Audionics speakers... he may have some insight on the driver originally used.

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 4th December 2008, 10:37 AM   #3
diyAudio Member
 
Join Date: Dec 2008
Quote:
Originally posted by planet10
Can you do a sketch of the line?

Without doing any sims, my guess would be that FE207 has a MUCH better chance of working out in this box.

Lybb Olsen did some work on at least some of the Audionics speakers... he may have some insight on the driver originally used.

dave
Thanks for the reply. I should edit the second length is 33" not 23"

I will look into the fe207.
  Reply With Quote
Old 4th December 2008, 11:39 AM   #4
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Assuming they are what I think they are (as in two untapered paths, the second smaller than the first, & terminating in a slightly smaller vent) I'd sell them. The 206 will not be a happy camper at all in that cabinet, & the 207 won't be a whole lot better, unless you're happy to accept either a) a chronic lack of LF, or b) chronic ripple in the FR. If you really must, as Dave suggests, the 207 or the el cheapo Pioneer B20 would be marginally better, but still not up to it, IMO.
  Reply With Quote
Old 4th December 2008, 02:53 PM   #5
diyAudio Member
 
Join Date: Dec 2008
You are correct, the paths are not tapered top to bottom. They are triangular passages, but same area for the extent of the path.

I'm not married to 'em, so if they won't work- no loss. I was just hoping to recycle a pretty nice cabinet into something.

I suppose I could create a taper within the box...
  Reply With Quote
Old 4th December 2008, 03:03 PM   #6
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Unfortunately, it's unlikely to make a great deal of difference, other than lower the tuning frequency & reduce the amplitude of some of the higher harmonics, which isn't really the problem.
  Reply With Quote
Old 4th December 2008, 03:39 PM   #7
diyAudio Member
 
Join Date: Dec 2008
Maybe the best use for these cabs would be to back up and reassess them as a sealed box, then possibly find a bass port size if needed for the driver. With a total sealed volume of about 1.8-1.9 ft it has at least some potential I suppose.
  Reply With Quote
Old 5th December 2008, 04:17 AM   #8
diyAudio Member
 
Lynn Olson's Avatar
 
Join Date: Jul 2004
Location: Northern Colorado
These are 2-fold transmission lines originally set up for Audax 8-inch drivers and a pair of Peerless HFC 225 cone tweeters - very good drivers for the day.

Being traditional TL's, the tuning is not very critical - just remember to fill most of the length of the line with wool or Fortrel/Dacron filling. No reason you can't pick your favorite Fostex and give it a spin - I'd shoot for a Qts somewhere between 0.3 and 0.5.
  Reply With Quote
Old 5th December 2008, 06:31 AM   #9
diyAudio Member
 
Join Date: Dec 2008
Thanks for the reply Lynn. I had found you associated with the lineage of the Audionics TL-30, but that's about all I could find of the speaker.
The cabinets are decently made. They are still in pretty good shape. I'll need to redo the front baffles for whatever I end up putting in there.

I have a set of vintage radio shack full range 8's and some Pioneer pt-220 horn tweets I might try with a 2mfd oil in cap. Might be the first move- then the full range fostex or something. Easy enough to try a few versions and test mule the thing. I've been in audio for a bit, but not into dyi for a while.

Thanks again,

RW
  Reply With Quote
Old 27th January 2011, 05:33 PM   #10
diyAudio Member
 
Join Date: Mar 2008
Default Audionics TL-30 drivers

Quote:
Originally Posted by Lynn Olson View Post
These are 2-fold transmission lines originally set up for Audax 8-inch drivers and a pair of Peerless HFC 225 cone tweeters - very good drivers for the day.

Being traditional TL's, the tuning is not very critical - just remember to fill most of the length of the line with wool or Fortrel/Dacron filling. No reason you can't pick your favorite Fostex and give it a spin - I'd shoot for a Qts somewhere between 0.3 and 0.5.
Hi,

My name is Jim Croft, and I designed the TL-30 some time before Lynn brought his excellent skills to Audionics and their later products. The woofer was actually the Philips 8" paper cone with the octagon shaped frame. I don't remember the model number. The Philips woofer certainly wasn't free of coloration in the midrange, but as Lynn mentioned, the Peerless tweeters were surprisingly good and the shallow initial slope, overlapping crossover provided for a rather smooth horizontal power response transition compared to other systems of the day.
Cheers,
Jim

Last edited by JamesCroft; 27th January 2011 at 05:34 PM. Reason: grammar error
  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
BIB for Fe206e gunnet Full Range 24 26th March 2009 03:07 PM
FE206E+woofer testarossa2k Multi-Way 67 27th January 2008 02:57 PM
Tweak for the FE206E usa_satriani Full Range 15 27th April 2006 10:52 PM
FE206E without the whizzer ? johninCR Multi-Way 1 11th April 2005 07:46 AM
My FE206e Experiences rabw Full Range 22 10th March 2005 08:13 AM


New To Site? Need Help?

All times are GMT. The time now is 11:02 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