isobaric resonator?

tade · 14th August 2005, 03:27 PM

I think isobaric means to abutt to drivers cone to cone and haveing them move together? what if you moved the drivers apart with an air volume. this air volume would couple with the drivers at its resonance and damp everywhere else? I think of it as holding a fishtank full of water and sloshing it around. has this design ever been studied?
thanks

richie00boy · 14th August 2005, 03:59 PM

An air gap/chamber between the two drivers can add to the effective mass property of the cone. You'll have to search for your own references, I wouldn't imagine it's that easy to pull off in practice compared to what theory predicts.

SY · 14th August 2005, 04:03 PM

It's not only been studied, it's been done commercially many times. See, for example, the Dynaudio DA500 from the '70s and the more recent Consequence.

tade · 14th August 2005, 05:35 PM

cool! what keywords should i search when i do some research?
thanks a bunch.

johninCR · 14th August 2005, 09:19 PM

The Decware Housewrecker does exactly that in a 6th order bandpass alignment. The isobarik chamber in the middle smooths the response verses a typical 6th order bandpass.

tade · 14th August 2005, 10:02 PM

facinating!

mike.e · 17th August 2005, 07:24 AM

isobaric, -3dB sensitivity,half box requirement. Good for lots of cheap woofers.

14th August 2005, 03:27 PM	#1
tade diyAudio Member Join Date: Feb 2005 Location: Ralieigh nc	isobaric resonator? I think isobaric means to abutt to drivers cone to cone and haveing them move together? what if you moved the drivers apart with an air volume. this air volume would couple with the drivers at its resonance and damp everywhere else? I think of it as holding a fishtank full of water and sloshing it around. has this design ever been studied? thanks

14th August 2005, 03:59 PM	#2
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	An air gap/chamber between the two drivers can add to the effective mass property of the cone. You'll have to search for your own references, I wouldn't imagine it's that easy to pull off in practice compared to what theory predicts. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

14th August 2005, 04:03 PM	#3
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	It's not only been studied, it's been done commercially many times. See, for example, the Dynaudio DA500 from the '70s and the more recent Consequence. __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

14th August 2005, 09:19 PM	#5
johninCR diyAudio Member Join Date: Apr 2004 Location: Costa Rica	The Decware Housewrecker does exactly that in a 6th order bandpass alignment. The isobarik chamber in the middle smooths the response verses a typical 6th order bandpass. __________________ Everyone has a photographic memory. It's just that most are out of film.

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


	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

14th August 2005, 05:35 PM	#4
tade diyAudio Member Join Date: Feb 2005 Location: Ralieigh nc	cool! what keywords should i search when i do some research? thanks a bunch.

14th August 2005, 10:02 PM	#6
tade diyAudio Member Join Date: Feb 2005 Location: Ralieigh nc	facinating!

17th August 2005, 07:24 AM	#7
mike.e diyAudio Member Join Date: Sep 2004 Location: NZ	isobaric, -3dB sensitivity,half box requirement. Good for lots of cheap woofers.

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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tozawa-Resonator : helps absorb 300Hz and below	andy2	Multi-Way	5	15th August 2011 07:13 PM
Resonator guitars	PhaseLockLoopy	Instruments and Amps	3	30th May 2008 04:28 PM
Cabinet brace act as helmholtz resonator?	RyanW	Multi-Way	17	2nd October 2007 11:08 PM
Horn-Resonator?	TroelsM	Multi-Way	5	29th September 2005 02:23 PM
Ceramic resonator pinout	trwh	Digital Source	2	21st July 2002 12:35 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