Suprabaffle for widerange + tweeter?

fred76 · 28th April 2007, 02:05 PM

Hi,

I'd like to get opinions from you guys... Is it okay to adjust the widerange driver position on the truncated pyramid suprabaffle if it is used with a 'helper' tweeter? The widerange driver is ~5" similar to the FE127E but has a limited hf response. So I plan to add helper dome tweeter ~1" on the same suprabaffle.. I mean the the main driver would not be equidistant anymore to the suprabaffle edges/corners... Example attached below: Driver on top while tweeter is just below it...

Thanks.

fred76 · 1st May 2007, 05:58 AM

BTW guys, the truncated pyramid suprabaffle would be for the iBIBk design...

I would still follow the driver height of the design (FE127E), but the truncated pyramid suprabaffle would be adjusted to accomodate the tweeter.. Would there be any sonic/baffle step penalties if the main driver is not exactly positioned in the center of the suprabaffle?

The main driver is whizerrless and has practically the same T/S parameters as the FE127E. Thanks!

Aesthetically I like the look of the truncated pyramid better than the oval suprabaffle. I also plan to move the k-slot halves on the sides.

*moderator could move the posts above to the iBib-k thread if deemed more appropriate*

planet10 · 2nd May 2007, 07:01 AM

The truncated pyramid is a supraBaffle.

Offsetting the driver should be fine, It will reduce the symetry of the wave launch (maybe not so good) while (theoretically) spreading out the diffraction delays (good).

dave

fred76 · 3rd May 2007, 06:57 AM

Thanks for the reply Dave.

At least the offset's effect is not all 'bad'.

1st May 2007, 05:58 AM	#2
fred76 diyAudio Member Join Date: Jan 2005 Location: Manila	for iBIBk BTW guys, the truncated pyramid suprabaffle would be for the iBIBk design... I would still follow the driver height of the design (FE127E), but the truncated pyramid suprabaffle would be adjusted to accomodate the tweeter.. Would there be any sonic/baffle step penalties if the main driver is not exactly positioned in the center of the suprabaffle? The main driver is whizerrless and has practically the same T/S parameters as the FE127E. Thanks! Aesthetically I like the look of the truncated pyramid better than the oval suprabaffle. I also plan to move the k-slot halves on the sides. moderator could move the posts above to the iBib-k thread if deemed more appropriate

2nd May 2007, 07:01 AM	#3
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	The truncated pyramid is a supraBaffle. Offsetting the driver should be fine, It will reduce the symetry of the wave launch (maybe not so good) while (theoretically) spreading out the diffraction delays (good). dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What to do with Foster widerange drivers?	Spasticteapot	Multi-Way	5	21st October 2006 11:58 PM
Widerange drivers and EQ	morbo	Full Range	10	4th November 2004 06:19 PM
Anyone used Aurasound 3" NS3 widerange?	morbo	Multi-Way	15	19th October 2004 12:07 AM
Widerange Driver 2-Way project	LageB	Multi-Way	1	30th March 2004 06:58 AM
widerange speaker using jordans	_henry_	Multi-Way	0	5th December 2002 07:54 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

3rd May 2007, 06:57 AM	#4
fred76 diyAudio Member Join Date: Jan 2005 Location: Manila	Thanks for the reply Dave. At least the offset's effect is not all 'bad'.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)