FR125 with Passive radiator - 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 13th March 2006, 03:53 PM   #1
badman is offline badman  United States
diyAudio Member
 
badman's Avatar
 
Join Date: Sep 2003
Location: Sunny Tustin, SoCal
Default FR125 with Passive radiator

Anyone seen this done? I've always preferred passive radiators to vents, and was thinking the little Seas 6.5" PR in a 16L cabinet with no added mass (tunes it to 50ish) would be just about right for the FR125, any thoughts?
__________________
I write for www.enjoythemusic.com in the DIY section. You may find yourself getting a preview of a project in-progress. Be warned!
  Reply With Quote
Old 13th March 2006, 04:06 PM   #2
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
I am a fan of PR's so I can't be objective. I say go for it. Just don't seal the cabinet permanent until you're sure about the weight issues with the drones. I assume you are using one FR per side?
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 13th March 2006, 06:18 PM   #3
badman is offline badman  United States
diyAudio Member
 
badman's Avatar
 
Join Date: Sep 2003
Location: Sunny Tustin, SoCal
Yeah, was planning 1 FR and one PR per side. Was thinking upfiring PR. These would be desktop speakers for work.
__________________
I write for www.enjoythemusic.com in the DIY section. You may find yourself getting a preview of a project in-progress. Be warned!
  Reply With Quote
Old 13th March 2006, 07:38 PM   #4
diyAudio Member
 
Join Date: Oct 2004
I like the idea, might work with the FR125. Do you know the Qts of Seas SP17R? Can't find it.

The cheap Dayton SD215-PR seems to do well also, might be worth a try.
  Reply With Quote
Old 13th March 2006, 08:54 PM   #5
badman is offline badman  United States
diyAudio Member
 
badman's Avatar
 
Join Date: Sep 2003
Location: Sunny Tustin, SoCal
A passive radiator shouldn't have a Qts, Qts being a function of the mechanical and electrical characteristics, and as a passive radiator has no electrical or magnetic characteristics (unless you include the steel frame which is irrelevant here) it also has no Qts.
__________________
I write for www.enjoythemusic.com in the DIY section. You may find yourself getting a preview of a project in-progress. Be warned!
  Reply With Quote
Old 13th March 2006, 10:15 PM   #6
diyAudio Member
 
Join Date: Oct 2004
Argh, I was trying to say Qms, which a passive radiator should have.
  Reply With Quote
Old 14th March 2006, 07:27 PM   #7
diyAudio Member
 
Join Date: Oct 2004
Qms of the Seas PR's?
  Reply With Quote
Old 14th March 2006, 07:49 PM   #8
badman is offline badman  United States
diyAudio Member
 
badman's Avatar
 
Join Date: Sep 2003
Location: Sunny Tustin, SoCal
I haven't seen it spec'd. Perhaps somebody else knows?
__________________
I write for www.enjoythemusic.com in the DIY section. You may find yourself getting a preview of a project in-progress. Be warned!
  Reply With Quote
Old 14th March 2006, 08:27 PM   #9
knorke is offline knorke  Germany
diyAudio Member
 
knorke's Avatar
 
Join Date: Dec 2004
Location: Eichstetten
Done that with ood results....
Attached Images
File Type: jpg 100_0685r.jpg (30.9 KB, 496 views)
  Reply With Quote
Old 14th March 2006, 08:33 PM   #10
knorke is offline knorke  Germany
diyAudio Member
 
knorke's Avatar
 
Join Date: Dec 2004
Location: Eichstetten
ood = good ;--)
backside:
Attached Images
File Type: jpg 100_0683r.jpg (23.8 KB, 460 views)
  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
Passive radiator jamikl Subwoofers 1 3rd June 2006 10:23 AM
Passive Radiator Fazorcat Subwoofers 42 10th May 2006 08:05 PM
passive radiator ??? Ahmad_tbp Multi-Way 20 29th March 2005 08:44 AM
Passive Radiator For ESS qdoc Multi-Way 0 8th July 2004 06:06 AM


New To Site? Need Help?

All times are GMT. The time now is 09:53 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