How best to use FE127? - 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 30th June 2006, 12:55 PM   #1
diyAudio Member
 
Join Date: Jan 2006
Location: Wisconsin....what did you expect?
Send a message via AIM to Spasticteapot
Default How best to use FE127?

I'm thinking about using a FE127 in combination with a T-amp or Gainclone for my new stereo system. They're certianly cheap enough, at about 35$ each at Madisound, but how should I use them?

MLTL's are supposed to work well, and the ABS pipe design at T-linespeakers.org (under http://t-linespeakers.org/projects/sampson/fe127tl.html) is very appealing. I'd like to try using an active baffle-step filter before the amplifier, though, to save money and improve sound quality.

Also, I was thinking about using a tweeter, too, if I can get access to a suitable tweeter. Is this unecessary?

Also, would you reccomend that I instead go for the TB "bamboo" driver, or another similarly-price FR option?
  Reply With Quote
Old 30th June 2006, 03:02 PM   #2
DaveCan is offline DaveCan  Canada
diyAudio Member
 
DaveCan's Avatar
 
Join Date: Nov 2005
Location: Moncton NB
Planet10 (Dave) has a design for the 127 thats aperiodic. I got to hear it with modded 127's a few weeks back and they sound real nice. I'd get in touch with him, he also sell's the modded version of the 127 driver which is much better than stock. Dave
  Reply With Quote
Old 30th June 2006, 05:56 PM   #3
diyAudio Member
 
Join Date: Jan 2003
Location: NYS
After hearing the differences between this and other similar drivers used in mono and bi-pole projects, I would highly recommend going bi-pole from the start.

I'll be very interested in hearing Dave's input, as he's played with many more designs. But for this kind of outlay, if you have the room, you'll be building a much more dynamic and engaging speaker.
__________________
onasis
  Reply With Quote
Old 30th June 2006, 07:05 PM   #4
diyAudio Member
 
Join Date: Feb 2004
Location: Appleton, WI
You should look at the FE127 reference project if you
have not seen that-- it has not been added to in a while
--and will show how a build it designed from the ground
up.

I went with the MLTL design from GM with dims
that are posted on the godzilla site. I did a bit of
customization on the port but I'm still using my
scratch build made from some fiberboard shelving
which just happens to be the right size for minimal
cutting to the right dimension.
  Reply With Quote
Old 30th June 2006, 07:30 PM   #5
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally posted by x. onasis
After hearing the differences between this and other similar drivers used in mono and bi-pole projects, I would highly recommend going bi-pole from the start.

I'll be very interested in hearing Dave's input, as he's played with many more designs. But for this kind of outlay, if you have the room, you'll be building a much more dynamic and engaging speaker.

I'm not Dave (just the the hack who builds all his design prototypes), but let me say that for a mono-pole the folded MLTL makes for a nifty little package, but to my ears is bested by the "Fonken".

Given appropriate floor space, the straight bipole MLTL adds an extra dimension to the soundstage over either mono-pole design, as well as increased sensitivity, and mitigates the need for BSC.
  Reply With Quote
Old 30th June 2006, 07:30 PM   #6
diyAudio Member
 
edjosh23's Avatar
 
Join Date: Oct 2004
Location: Raleigh/Atlanta
I build a pair of GMs MLTLs, but I think that I may build Dave's Fonkens.

Dave's Designs


Josh
  Reply With Quote
Old 30th June 2006, 08:14 PM   #7
diyAudio Member
 
vinylkid58's Avatar
 
Join Date: May 2005
Location: Victoria, B.C.
The Fonkens are the way to go IMHO. After listening to them and some of the other 127 based speakers, I decided this was the way to go. My version has slightly different port dimensions compared to Dave's. I used the xls Onken spreadsheet while staying with the 13L volume.

Jeff
Attached Images
File Type: jpg fe127e (13l) mini-onken.jpg (35.2 KB, 562 views)
  Reply With Quote
Old 30th June 2006, 08:17 PM   #8
diyAudio Member
 
Join Date: Jan 2006
Location: Wisconsin....what did you expect?
Send a message via AIM to Spasticteapot
Quote:
Originally posted by vinylkid58
The Fonkens are the way to go IMHO. After listening to them and some of the other 127 based speakers, I decided this was the way to go. My version has slightly different port dimensions compared to Dave's. I used the xls Onken spreadsheet while staying with the 13L volume.

Jeff
The Fonken looks great. I may have to make someone else make it for me, though. (Much bribes will be in order.)
  Reply With Quote
Old 6th July 2006, 01:23 AM   #9
bluegti is offline bluegti  United States
diyAudio Member
 
Join Date: Nov 2004
Location: Northern Virginia
Default I'm listening to the reference project right now...

I built these because this was my second pair I ever built and it seemed pretty easy to build. I'm using them with a pair of Bottlehead Paramours in a pretty small room - 12 x 12.

At first things were a little on the bright side - to be honest I was disappointed compared to some JMR Twins that I was using before. They have about 100 hours on them now and they are definitely smoothing out and the bass is starting to fill in. Now, I'm pretty happy. I think I've read they have a fairly long break in, so I'm expecting them to get even better.
  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
FS: NIB FOSTEX 4 X FE127 $39 each dhenryp Swap Meet 1 8th February 2012 02:52 AM
Fe127 E oceancity Full Range 4 23rd April 2009 06:13 AM
FE127 in MLTL davidallancole Full Range 35 29th April 2008 03:10 PM
FE127 for in-wall speaker? Xor Full Range 8 30th May 2007 03:25 PM
FE127 project edjosh23 Full Range 43 25th September 2005 11:33 PM


New To Site? Need Help?

All times are GMT. The time now is 12:48 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