Biamped Open baffle/Sealed Comments pls

kestrel200 · 22nd January 2005, 01:32 PM

Ok.. I think I'm getting close to finalizing the design for my nest speaker and would like to get your thoughts. The design is a mixed Open Baffle,Dipole /sealed speaker. The woofer would be sealed, The mids will be open baffle, and I am thinking about putting a rearfiring tweeter on the back of the baffle too. The speaker will be active between the woofer and the mids/tweeter.

The drivers are ( I allready have them and therefore don't want to change them):

Woofers: Peerless 10"CSX
Mids: Either Vifa P13s or Peerless HDS 850488
Tweeter: Morel MDT33s

Haven't decided on a rear tweeter yet. Any thoughts???

Here' a conceptual drawing.

Davey · 22nd January 2005, 03:58 PM

Why don't you want to mate with dipole woofers? Do you need the SPL capability?

Davey.

ralph-bway · 22nd January 2005, 04:12 PM

Hi Kestrel,

Very interesting design. Sorry I can't be much help with your questions, but I was curious about where you were going to XO from the woofers to the mids.

Best,

Ralph

qwad · 22nd January 2005, 04:27 PM

your design looks very similar to lorpen audio models[ just google for lorpen and it will bring up the site

he uses a similar configuration

and it does sound very nice the difference is the woofers which are 8 in in a br encl but to my knowledge does not use a rear firing tweet, [which to my thinking would diffuse the stereo image]cheers have fun TC

Paul W · 23rd January 2005, 02:33 PM

FWIW...I like dipole best at low frequencies...best box is no box. Your general design is very good looking (like Phoenix/Orion hybrid) and could be adapted to dipole woofer very easily, unless you have large room/no sub.

Dipole upper mid and highs promote to many room reflections for me...depending on placement and room treatment, the sound may be on a "grand scale", but imaging can be weak.

I have used P13...it can sound very smooth and polite, but not exceptionally detailed.

"sorta" dipoles w/resistive loading

22nd January 2005, 04:12 PM	#3
ralph-bway diyAudio Member Join Date: Sep 2002 Location: Long Island, NY	Hi Kestrel, Very interesting design. Sorry I can't be much help with your questions, but I was curious about where you were going to XO from the woofers to the mids. Best, Ralph __________________ Probably a silly question, but ........

22nd January 2005, 04:27 PM	#4
qwad diyAudio Member Join Date: Mar 2003 Location: adelaide city of churches	your design looks very similar to lorpen audio models[ just google for lorpen and it will bring up the site he uses a similar configuration and it does sound very nice the difference is the woofers which are 8 in in a br encl but to my knowledge does not use a rear firing tweet, [which to my thinking would diffuse the stereo image]cheers have fun TC __________________ we all have problems only some people have more than most.... long live the Magyar (Hungarians) in the world!

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22nd January 2005, 03:58 PM	#2
Davey diyAudio Member Join Date: Dec 2001 Location: Bremerton, WA.	Why don't you want to mate with dipole woofers? Do you need the SPL capability? Davey.

23rd January 2005, 02:33 PM	#5
Paul W diyAudio Member Join Date: Oct 2003 Location: North Georgia	FWIW...I like dipole best at low frequencies...best box is no box. Your general design is very good looking (like Phoenix/Orion hybrid) and could be adapted to dipole woofer very easily, unless you have large room/no sub. Dipole upper mid and highs promote to many room reflections for me...depending on placement and room treatment, the sound may be on a "grand scale", but imaging can be weak. I have used P13...it can sound very smooth and polite, but not exceptionally detailed. "sorta" dipoles w/resistive loading

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