CBEs coming along - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

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 10th November 2012, 03:58 PM   #1
diyAudio Member
 
Join Date: Mar 2011
Default CBEs coming along

been working on these for some time. finally making some progress.
Attached Images
File Type: jpg 2012-11-09_11-37-31_197.jpg (466.4 KB, 187 views)
File Type: jpg 2012-11-09_11-37-42_466.jpg (319.9 KB, 176 views)
File Type: jpg 2012-11-09_12-59-11_5.jpg (579.2 KB, 166 views)
File Type: jpg 2012-11-09_12-59-22_603.jpg (612.0 KB, 162 views)
File Type: jpg 2012-11-09_12-59-31_885.jpg (632.2 KB, 156 views)
File Type: jpg 2012-11-09_12-59-44_343.jpg (543.6 KB, 62 views)
File Type: jpg 2012-11-09_12-59-54_322.jpg (609.7 KB, 92 views)
  Reply With Quote
Old 10th November 2012, 10:00 PM   #2
NEO Dan is offline NEO Dan  United States
diyAudio Member
 
NEO Dan's Avatar
 
Join Date: Jun 2008
Location: N.E. Ohio
Looking good man.
What are you going to load them with?
Just looking at them and my back is already giving off some sympathy pains... I'm guessing the round cutouts on the back are for casters or caster boards?
Can you point me to some dimensions for the hand hold cutouts? I'd been thinking about trying them on a box.
__________________
Regards,
Dan
  Reply With Quote
Old 11th November 2012, 07:45 PM   #3
diyAudio Member
 
Join Date: Mar 2011
they weight a little,but not too much. i am thinking maybe 120 with driver. i have wheel boards that will hook on the front and yeah, the cuts are for stacking for when i load them in the truck. i currently use a pair of peavey sp118x cabinets. now they are heavy for what they are. i am shooting towards using the B&C 18TBX100 in the CBEs. i can send you a cad file of the cuts or a pdf with dimensions
  Reply With Quote
Old 11th November 2012, 07:52 PM   #4
epa is offline epa  Netherlands
diyAudio Member
 
Join Date: Apr 2010
Location: amsterdam
nice
intresting to see how they preform with the tbx100
__________________
one good thing about music ,when it hit you feel no pain.
so hit me with music
.
  Reply With Quote
Old 11th November 2012, 07:58 PM   #5
Djim is offline Djim  Netherlands
diyAudio Member
 
Join Date: Dec 2009
Location: 'Ollanda
Hi scameron78,

Nice build and Stipes design is a very good PA concept, imo.
Don't forget to make cut-outs in the V-stub otherwise your driver might hit it.

Click the image to open in full size.
  Reply With Quote
Old 11th November 2012, 08:31 PM   #6
diyAudio Member
 
Join Date: Mar 2011
Quote:
Originally Posted by Djim View Post
Hi scameron78,

Nice build and Stipes design is a very good PA concept, imo.
Don't forget to make cut-outs in the V-stub otherwise your driver might hit it.
thanks Djim. i didn't know this was an issue.
  Reply With Quote
Old 11th November 2012, 09:06 PM   #7
PASC is offline PASC  Brazil
diyAudio Member
 
Join Date: Dec 2004
Location: South Brazil
Hi!

Insurance 18mm + 5mm = 23mm should be enough in case of accident (Steiper designs are prime ones); why surpass x-var, 11mm?

If you have chance try 18NW100 to compare do it; tried 18TBX100 tested in Xoc1 (without cone correction) shows low sensivity, excess of cone excursion for power applied.
Mms are near equal which means both have strong cones to survive high stress..
Regards,
__________________
PASC
  Reply With Quote
Old 11th November 2012, 09:14 PM   #8
Djim is offline Djim  Netherlands
diyAudio Member
 
Join Date: Dec 2009
Location: 'Ollanda
When a driver in a horn/TH is driven up and beyond its Xmax it can show much higher peaks in movement. These non-linear movements are not an issue for capable drivers as long the driver isn’t hitting anything. To insure enough clearance for your driver (or optional drivers in future) you can use Xmech plus a couple of mm.
  Reply With Quote
Old 11th November 2012, 09:53 PM   #9
PASC is offline PASC  Brazil
diyAudio Member
 
Join Date: Dec 2004
Location: South Brazil
Hi!

Learned that loudspeakers have their limits: mechanical e thermal.
Power compression rules at long therm after x-máx 9mm, and x-var 11mm.
Tests in Xco1 TH18, with proper low cut and hipass, shows that put more W on it gives nothing than more PC and stress to the loudspeaker.
2000W to 18TBX100 gives same as 18LW2400 with 1100W with both cones travelling uncontrolled; if I insist will pay for recone.
2300W on 18NLW9600 gives around 2 dBs more with excellent cone control.

Respect your opinion, but my option is use loudspeakers till their limits and so optimise their results to obtain good clean sound and longevity.

Both B&C and 18 Sound drivers show 2,2dBs PC at 0dB level.

Using it passing x-var help spyders to loose early, modifying T/S parameters, when Fs will rise dow...

Think CB results will surpass TH18.

Regards,
__________________
PASC

Last edited by PASC; 11th November 2012 at 09:56 PM. Reason: complete
  Reply With Quote
Old 11th November 2012, 10:25 PM   #10
Djim is offline Djim  Netherlands
diyAudio Member
 
Join Date: Dec 2009
Location: 'Ollanda
Hi Pasc,

I don’t disagree with you, Pasc, but you are talking about something else. You are describing its usable excursion (linear movement) while I was talking about worst case scenarios for excursion, usually caused by accidents (such as wrongly set low-cut filters for instance). Therefore I recommended giving a driver full clearance to move all the way up till its Xmech (plus a little), even it will not be used that way under normal circumstances. This can prevent mechanical damage in those rare occasions you have not accounted for.

Last edited by Djim; 11th November 2012 at 10:28 PM.
  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
New Kits Coming Soon!! CSS/XBL CSS 2 10th October 2012 09:15 PM
Delta3 coming along ... David Gatti Multi-Way 18 11th July 2007 06:06 AM
New chips coming? jmar Digital Source 0 31st July 2006 05:26 PM
New Aleph 5 coming up!! bbakota2000 Pass Labs 20 18th April 2004 02:05 PM


New To Site? Need Help?

All times are GMT. The time now is 11:44 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