Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Drivers /  parameters for ripole subs
Drivers /  parameters for ripole subs
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 14th March 2016, 03:41 PM   #231
Kjeldsen is offline Kjeldsen  Denmark
diyAudio Member
 
Join Date: Dec 2003
Location: Randers, Denmark
Why is it that high Mms is not good for Ripoles?
__________________
http://kjeldsensforbindelser.dk
  Reply With Quote
Old 3rd September 2019, 12:55 PM   #232
DaveFred is offline DaveFred  Canada
diyAudio Member
 
Join Date: Jan 2018
Quote:
Originally Posted by bibster View Post
Well,

Here's my Q'n'D ripole calc sheet, mainly for cabinet construction though...
It's a preliminary V0.0001 alpha release
Send comments/improvements etc. to my email rather than here, I don't want to mess up this usefull thread!

regards, (Ri)Paul
Has anyone built a ripole using this spreadsheet?

How were the results?
  Reply With Quote
Old 6th September 2019, 10:27 AM   #233
ThorzHammer is offline ThorzHammer  United States
diyAudio Member
 
Join Date: Apr 2018
Location: Ohio
Quote:
Originally Posted by DaveFred View Post
Has anyone built a ripole using this spreadsheet?

How were the results?
Wouldn't that spreadsheet just be for a simple folded dipole design?

It's my understanding that a true "Ripole" design (short for Axel "Ridtahler's Dipole") uses dual subs in an opposing push/push configuration where the front of each sub fires into a common center chamber and the rear of each sub fires into it's own dedicate chamber. That's what I recently built using a pair of Infinity REF1200S Low-Profile subwoofers so I wouldn't have to see those ugly magnets sticking out the sides of the enclosures.
  Reply With Quote
Old 6th September 2019, 10:52 AM   #234
cowanaudio is offline cowanaudio  Australia
diyAudio Member
 
cowanaudio's Avatar
 
Join Date: Jul 2004
Location: Canberra
Drivers /  parameters for ripole subs
Quote:
Originally Posted by Kjeldsen View Post
Why is it that high Mms is not good for Ripoles?
It pulls down sensitivity.
__________________
Don't Procrastinate....Just Do It!
  Reply With Quote
Old 6th September 2019, 12:04 PM   #235
DaveFred is offline DaveFred  Canada
diyAudio Member
 
Join Date: Jan 2018
Quote:
Originally Posted by ThorzHammer View Post
That's what I recently built using a pair of Infinity REF1200S Low-Profile subwoofers so I wouldn't have to see those ugly magnets sticking out the sides of the enclosures.
Any measurements?
  Reply With Quote
Old 6th September 2019, 12:37 PM   #236
ThorzHammer is offline ThorzHammer  United States
diyAudio Member
 
Join Date: Apr 2018
Location: Ohio
I use a MiniDSP DDRC-24 in my setup for room correction. According to the frequency response from it a single Ripole sub (the 2nd is in it’s finishing stages) along with my Magnepan 1.5QRs are flat down to 27Hz. While this doesn’t go down into pipe organ territory (I don’t listen to that sort of thing anyway) it is a HUGE improvement over my Maggies alone. I agree with a statement made by “Jazzman” (Google “Jazzman’s Ripole") that you should not expect chest thumping, room shaking bass like you would hear at a movie theater from a Ripole. Taking that into consideration the added bass provided by the Ripole sub blends beautifully with my Maggies.
Attached Images
File Type: jpg Ripole 1.jpg (186.0 KB, 129 views)
File Type: jpg Ripole 2.jpg (137.1 KB, 124 views)
  Reply With Quote
Old 17th October 2019, 10:43 PM   #237
DaveFred is offline DaveFred  Canada
diyAudio Member
 
Join Date: Jan 2018
Quote:
Originally Posted by Rudolf View Post
The rule of thumb here is: If the drivers Xmax (peak-to-peak) is >10 mm, the opening area of the pipe should be not less than 1/3 Sd. If Xmax is less, the area might be reduced down to 1/4 Sd.

Rudolf
This does not make sense to me.

I thought X-Max was one way and peak to peak was both ways.

?
  Reply With Quote

Reply


Drivers /  parameters for ripole subsHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
TS parameters and specs for these drivers??? Bull Multi-Way 1 9th March 2011 01:15 PM
T/S parameters for horn drivers buggsson Multi-Way 7 25th March 2008 09:53 AM
Parameters for drivers iwahn Subwoofers 0 20th June 2007 10:13 PM
FS: horn subs, drivers, 'regular' subwoofer drivers John Sheerin Swap Meet 0 2nd August 2004 12:33 AM
T/S parameters of JBSystems drivers sstoiana Multi-Way 1 30th September 2003 09:11 PM


New To Site? Need Help?

All times are GMT. The time now is 05:50 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki