diyAudio Full Range Reference Project - Page 87 - 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 7th June 2012, 08:15 PM   #861
diyAudio Member
 
mondogenerator's Avatar
 
Join Date: Sep 2009
Location: City Of Villans
Blog Entries: 1
A good coat of PVA is cheap easy and effective. I wouldnt like to try it on a fragile cone though lol
__________________
Every new piece of knowledge pushes something else out of my brain - Homer.....................Simpson
  Reply With Quote
Old 4th November 2012, 01:08 AM   #862
freax is offline freax  Australia
diyAudio Member
 
freax's Avatar
 
Join Date: Sep 2007
Location: NSW
Whats the replacement for this speaker if the driver (FE126/FE127) is no longer being manufactured?

Is it this?: http://diyaudioprojects.com/Drivers/FE126En/
__________________
"It seems that perfection is reached not when there is nothing left to add, but when there is nothing left to take away" - Antoine de Saint Exupéry
  Reply With Quote
Old 4th November 2012, 01:34 AM   #863
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
FF125wk is closest.

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 November 2012, 06:06 PM   #864
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by freax View Post
Whats the replacement for this speaker if the driver (FE126/FE127) is no longer being manufactured?

Is it this?: Fostex FE126En Fullrange Speaker Driver (Transducer)
Quote:
Originally Posted by planet10 View Post
FF125wk is closest.

dave


The two drivers cited 126/127 shouldn't really be considered interchangeable in the first place, so choice of replacement would depend on the the enclosure design. The FE126EN is still in production, it'd be the 127 that would find FF125WK as most likely "replacement" - noting that designs for the 127 might need some tweaking to tuning when using the new driver.
__________________
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 2nd July 2014, 09:50 AM   #865
diyAudio Member
 
Join Date: Oct 2009
Location: New Zealand
Quote:
Originally Posted by planet10 View Post
The narrow folded monopole... i've heard 2 versions of this, both are good. Inspired by the FE126 TL/BR hybrid, Chris implemented an interesting presentation (in getting finish right now, pics to follow)
Would the port need some lengthening from the specified 1.5" when using a flared duct as sold by Madisound? How much would be in the ballpark?

The Madisound Speaker Store

(makes it easier to get a good fit between cabinet and using otherwise just a piece of PVC pipe)

Thanks!
  Reply With Quote
Old 2nd July 2014, 06:15 PM   #866
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
A flare shortens the effective length of the vent. I rarely ue a round vent.

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 2nd July 2014, 07:24 PM   #867
TerryO is online now TerryO  United States
diyAudio Member
 
TerryO's Avatar
 
Join Date: Nov 2002
Location: Seattle,Wash.
Quote:
Originally Posted by AmadeusMozart View Post
Would the port need some lengthening from the specified 1.5" when using a flared duct as sold by Madisound? How much would be in the ballpark?

The Madisound Speaker Store

(makes it easier to get a good fit between cabinet and using otherwise just a piece of PVC pipe)

Thanks!
To answer your question, yes it should be longer to compensate for the flair of the vent. When calculating the correct length for a flared vent, most add 1/3 (to 1/2) the length (depth) of the flair to calculate the overall length. Since I use a round-over bit to create the flair in the cabinet, I then add a PVC tube on the inside for a test measurement. If it's good, I mix epoxy and install the vent tube permanently.

Best Regards,
TerryO
__________________
"If you have to ask why, then you're probably on the right track."
quote from Terry Olson's DIYaudio Forum application
  Reply With Quote
Old 3rd July 2014, 12:59 AM   #868
diyAudio Member
 
Join Date: Oct 2009
Location: New Zealand
Quote:
Originally Posted by planet10 View Post
A flare shortens the effective length of the vent. I rarely use a round vent.

dave


Dave / TerryO

thanks for the replies, much appreciated.

I am not particularly fond of round vents however the design is with a round vent and it is always best to keep the build as close as possible to the original tested version.
  Reply With Quote
Old 1st August 2014, 03:04 AM   #869
diyAudio Member
 
Join Date: Oct 2009
Location: New Zealand
Quote:
Originally Posted by planet10 View Post
Mounted on a wall, i'd go with the straight monopole... the folded one is to give an option that is more "normal" cosmetically



We asked that question too... Why would we build a Fonken if the diyA ref was even close, so we compared the diyA ref folded monopole we built for Chris' mom to a set of Fonken, We are still building Fonken. Ir has more finese and control... and certainly enuff to warrant the extra effort.

What amp do you have?

dave
I've just been looking at MJK's alignment tables. It appears that since the original monopole was designed more knowledge has become available and that it is better to mount the driver 0.349 * the length from one end rather than halfway.

The upshot of this is that with the folded monopole it is better to extend the divider down to the bottom and mount the driver approx 290 mm from the bottom keeping everything else the same. Models better in the worksheets too.
  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



New To Site? Need Help?

All times are GMT. The time now is 08:56 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