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

What do you guys/gals think of PVC for FR enclosure?
What do you guys/gals think of PVC for FR enclosure?
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 27th September 2017, 12:46 PM   #11
Dr1v3n is offline Dr1v3n  United States
diyAudio Member
 
Join Date: Mar 2017
Location: Wake Forest, NC
Wow, thanks everyone for responding! This forum is great! Some really good knowledge here.

Quote:
Originally Posted by fluid View Post
...Is there something you are hoping to gain from changing the enclosures?
I was hoping to get more drivers closer together. Even though each enclosure is angled, shaving an inch off of each one allows for at least 2 more enclosures for the 84in stands I'm using.

Quote:
Originally Posted by planet10 View Post
...Use a 5 pipe, build a slighly rounded adaptor ring, and leave it at that. Id leave the back open and damp them till aperiodic since there are woofers.

Click the image to open in full size.

dave
Hmm, 5in would still be an advantage as my current boxes are 6in x 6in x 11in. And I could cut out the center of a round cap to achieve that hemisphere shape. Thanks for posting that Olson baffle diffraction pic, I've been looking for it but didn't know how to search for it.

Forget about my original idea of concentric forward vented pipes. It was literally a 'pipe dream'.

Your responses gives me confidence to go ahead and get the 5" black PVC parts for 4 speakers to get this phase kickstarted.
  Reply With Quote
Old 27th September 2017, 02:04 PM   #12
Dr1v3n is offline Dr1v3n  United States
diyAudio Member
 
Join Date: Mar 2017
Location: Wake Forest, NC
For a cutoff frequency of 150 Hz, would a volume of 2 litres be ideal? I plugged in some TS parameters on a website and just need confirmation. I don't know what the rolloff is of the amp I'm using...
EDIT: For sealed enclosure.

Last edited by Dr1v3n; 27th September 2017 at 02:11 PM.
  Reply With Quote
Old 27th September 2017, 02:31 PM   #13
suprf1y is offline suprf1y  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: SW Ontario
Something like this but an array?

Tubifex - undefinition
  Reply With Quote
Old 27th September 2017, 04:47 PM   #14
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
What do you guys/gals think of PVC for FR enclosure?
Quote:
Originally Posted by Dr1v3n View Post
For a cutoff frequency of 150 Hz, would a volume of 2 litres be ideal?
Smaller than i would go.

What do you guys/gals think of PVC for FR enclosure?-p7-2ls-png

dave
Attached Images
File Type: png P7-2LS.png (12.9 KB, 489 views)
__________________
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 27th September 2017, 05:52 PM   #15
Dr1v3n is offline Dr1v3n  United States
diyAudio Member
 
Join Date: Mar 2017
Location: Wake Forest, NC
Thanks Dave! 4 litres then? That would be 12in in length. Look @me I'm mixing imperial and metric units. I must be confused, lol
  Reply With Quote
Old 27th September 2017, 06:25 PM   #16
chrisb is offline chrisb
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
12" = 304.8mm - 305 would be close enough
  Reply With Quote
Old 27th September 2017, 10:58 PM   #17
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
What do you guys/gals think of PVC for FR enclosure?
4 litres looks nicer.

What do you guys/gals think of PVC for FR enclosure?-p7-4ls-png

dave
Attached Images
File Type: png P7-4LS.png (15.4 KB, 453 views)
__________________
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 27th September 2017, 11:46 PM   #18
Dr1v3n is offline Dr1v3n  United States
diyAudio Member
 
Join Date: Mar 2017
Location: Wake Forest, NC
Oh yeah, I see that. Thank you sir once again! Ordering. Will report back...
  Reply With Quote
Old 28th September 2017, 12:23 AM   #19
Dr1v3n is offline Dr1v3n  United States
diyAudio Member
 
Join Date: Mar 2017
Location: Wake Forest, NC
Quote:
Originally Posted by suprf1y View Post
Something like this but an array?

Tubifex - undefinition
Sorry my friend, I don't mean to ignore... Yes very similar to that design, except that I plan on using a rounded cap in order to mount the driver for the hemispherical front end, not flat like in your pics. AND I do prefer a 'light' tweeter in the middle of my array, like your MTM configuration. Probably just semantics, especially at louder SPLs, but it sounds really good so far in the rectangular boxes in my current setup.

Last edited by Dr1v3n; 28th September 2017 at 12:26 AM.
  Reply With Quote
Old 5th October 2017, 10:39 PM   #20
Dr1v3n is offline Dr1v3n  United States
diyAudio Member
 
Join Date: Mar 2017
Location: Wake Forest, NC
Got the 5" rounded endcaps in yesterday. Sorta disappointed the OD measures 6 1/8" or about 155mm. So I won't be able to have 14 drivers per side as planned. I'll have to settle for 12 drivers, which is ok, that's still 4 more per side which should be audibly noticeable. Still waiting on the 12" long tubes.
Once everything is in, I'll go back to the Pluvia 7 build in my sig. I'll also add this thread in there as maybe a 'Chapter 2'.
Here's some preliminary pics:
Attached Images
File Type: jpg P1070222.jpg (234.4 KB, 51 views)
File Type: jpg P1070224.jpg (213.3 KB, 65 views)
File Type: jpg P1070225.jpg (229.0 KB, 90 views)
File Type: jpg P1070227.jpg (205.8 KB, 84 views)
File Type: jpg P1070229.jpg (179.2 KB, 60 views)
  Reply With Quote

Reply


What do you guys/gals think of PVC for FR enclosure?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hi Guys, just bought a JBL 1214 GTO ,need help to built a nice ported enclosure kevin22 Subwoofers 3 15th October 2015 02:39 PM
You guys and gals recognize any of this equipment? Sodacose Tubes / Valves 12 7th June 2015 10:25 PM
What do you guys (gals) think of this? aptquark Planars & Exotics 8 15th June 2010 02:41 AM
Hi Pals & Gals messenger Introductions 2 8th June 2010 01:18 AM
All you horn guys and gals Variac Multi-Way 6 17th June 2003 08:27 PM


New To Site? Need Help?

All times are GMT. The time now is 05:08 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki