Some Sonotube Help - Speaker Terminals Polyfill - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 8 Old 10-03-2013, 03:35 PM - Thread Starter
AVS Special Member
 
pdxrealtor's Avatar
 
Join Date: May 2005
Posts: 2,515
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked: 141
I need some suggestions for speaker terminals. I prefer to have the terminal on the side of the sonotube itself, vs. on one of the baffles.

I'm tempted to just drill a hole in the tube, run the wire through, and silicone it up. But that seems a bit sloppy to me. Would a standard circular terminal cup seal well enough on a 24" diameter sonotube?

AND

How much polyfill should I use? Should I dump it in or nicely line the walls? I've always just dumped it in the past.

I have 4^3 of space per woofer. 18" Stereo Integrity.

FS- Netgear 550 .ISO player - PM me
My Gear-Pioneer, JBL Pro Cinema, Fi Car Audio 4- SP4 18", Peavey IPR2 7500 x 4 -Mini-Dsp 4x10, GIK Acoustics, Seymour Screens 110" AT, Dune Smarts, uNraid Server
Theater Build and Two Sono Sub Builds Here-
pdxrealtor is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 10-03-2013, 03:40 PM - Thread Starter
AVS Special Member
 
pdxrealtor's Avatar
 
Join Date: May 2005
Posts: 2,515
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked: 141
Would something like this work for binding posts?

http://www.parts-express.com/pe/showdetl.cfm?partnumber=091-1250

I'm not sure I trust the 'cardboard' to not compress from securing these.

FS- Netgear 550 .ISO player - PM me
My Gear-Pioneer, JBL Pro Cinema, Fi Car Audio 4- SP4 18", Peavey IPR2 7500 x 4 -Mini-Dsp 4x10, GIK Acoustics, Seymour Screens 110" AT, Dune Smarts, uNraid Server
Theater Build and Two Sono Sub Builds Here-
pdxrealtor is offline  
post #3 of 8 Old 10-03-2013, 04:23 PM
AVS Addicted Member
 
MKtheater's Avatar
 
Join Date: Jul 2006
Location: New Hartford, NY
Posts: 14,618
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 292 Post(s)
Liked: 463
Yes that will work. I would just line the inside the tube. Just make sure there are no air leaks at the end caps and binding posts.
MKtheater is offline  
post #4 of 8 Old 10-03-2013, 06:10 PM
AVS Special Member
 
steve nn's Avatar
 
Join Date: Aug 2003
Posts: 6,207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 428
I would glue a small pre drilled piece of wood on the sono where you want the terminals to go.

Klipsch RB-75
Klipsch C-7
Klipsch RB-35
On-going SW management class
Denon
PS3
steve nn is offline  
post #5 of 8 Old 10-03-2013, 06:12 PM - Thread Starter
AVS Special Member
 
pdxrealtor's Avatar
 
Join Date: May 2005
Posts: 2,515
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked: 141
Quote:
Originally Posted by steve nn View Post

I would glue a small pre drilled piece of wood on the sono where you want the terminals to go.

For what purpose?

I was thinking fender washers to spread the load and stop compression..... are you thinking the same with your wood idea?

FS- Netgear 550 .ISO player - PM me
My Gear-Pioneer, JBL Pro Cinema, Fi Car Audio 4- SP4 18", Peavey IPR2 7500 x 4 -Mini-Dsp 4x10, GIK Acoustics, Seymour Screens 110" AT, Dune Smarts, uNraid Server
Theater Build and Two Sono Sub Builds Here-
pdxrealtor is offline  
post #6 of 8 Old 10-03-2013, 06:18 PM - Thread Starter
AVS Special Member
 
pdxrealtor's Avatar
 
Join Date: May 2005
Posts: 2,515
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked: 141
Quote:
Originally Posted by MKtheater View Post

Yes that will work. I would just line the inside the tube. Just make sure there are no air leaks at the end caps and binding posts.

Thanks for bringing that up. I think that is an important point and one which I will be highlighting in my build thread. Sealing up the baffle joints even though you glued the baffles in.

I just this morning sealed all the joints with a sealant. smile.gif

I would like some more input on lining vs. stuffing the tube with polyfill. It's always been my understanding that filling the enclosure with poly fill will make the box act bigger. I forget the oz per cubic foot. ( I can look it up easily) but it seems that 4^3 is the minimum size for these SI 18's and adding polyfill to make the enclosure seem bigger might be a benefit.

FS- Netgear 550 .ISO player - PM me
My Gear-Pioneer, JBL Pro Cinema, Fi Car Audio 4- SP4 18", Peavey IPR2 7500 x 4 -Mini-Dsp 4x10, GIK Acoustics, Seymour Screens 110" AT, Dune Smarts, uNraid Server
Theater Build and Two Sono Sub Builds Here-
pdxrealtor is offline  
post #7 of 8 Old 10-04-2013, 05:27 AM
AVS Special Member
 
steve nn's Avatar
 
Join Date: Aug 2003
Posts: 6,207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 428
Yes washers would work fine, just so they are big enough to dissipate the load.

EDIT/PS> I was just thinking custom PDX thermalnecular terminals is all. smile.gif

Klipsch RB-75
Klipsch C-7
Klipsch RB-35
On-going SW management class
Denon
PS3
steve nn is offline  
post #8 of 8 Old 10-04-2013, 01:56 PM - Thread Starter
AVS Special Member
 
pdxrealtor's Avatar
 
Join Date: May 2005
Posts: 2,515
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked: 141
I went out to my loudspeaker supply shop locally and ended up getting speakon terminals for the sonotube.

http://www.parts-express.com/pe/showdetl.cfm?partnumber=092-339

I also got all the other speakon connectors for the amps. and tubes.

If anyone else has any input on how much polyfill to use I'd love to hear it. smile.gif

FS- Netgear 550 .ISO player - PM me
My Gear-Pioneer, JBL Pro Cinema, Fi Car Audio 4- SP4 18", Peavey IPR2 7500 x 4 -Mini-Dsp 4x10, GIK Acoustics, Seymour Screens 110" AT, Dune Smarts, uNraid Server
Theater Build and Two Sono Sub Builds Here-
pdxrealtor is offline  
Reply DIY Speakers and Subs

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

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