Joe's Elsinore Project.

PoorSound · 20th February 2007, 08:29 PM

anyone seen this design?

http://www.customanalogue.com/elsino...nore_index.htm

what do you guys think of the design? looks incredible to me. anyone have some insight? maybe someone has built these themselves?

PoorSound · 21st February 2007, 02:29 AM

nothing?

Ap · 21st February 2007, 07:48 AM

Know of it but havent heard it, Joe is an excellent designer & have no doubt these would sound fantastic (I have heard his older designs). > Andrew.

planet10 · 21st February 2007, 07:55 AM

the MM-MTM is an effective way of using 4 smaller drivers (on the front of the box).

A number of people have been showing the effectiveness of waveguide loading of a dome tweeter.

Too much XO for my taste thou (and i'd put the bottom 2 drivers on the back)

From the red bullet points. the line soouce coupling at LF is misleading & i don't see anything novel about the XO.

dave

Ap · 21st February 2007, 08:55 PM

Too much xover??? You cant be serious.
I would have to say it is a very simple & effective xover. If you take a look at the mid-bass the only series components are a shelving filter, the tweeter just cap & resistor, bass single inductor - it doesnt get much simpler - unless you like single 'part-range' drivers.
As for reffering to the bass acting as a line source he maybe stretching it a little , but still you have 4 drivers spaced apart covering the bass that is still going to work pretty effectively.
http://www.customanalogue.com/elsinore/elsinore_7.htm

planet10 · 21st February 2007, 10:27 PM

Quote:

Originally posted by Ap
Too much xover??? You can't be serious.

I'm perfectly serious. Just look at the impedance curve. ignoring the bass peak we have 8->18->4 ohms. Both XOs are in the critical band.

For the kind of design philosophy it is in, it is pretty simple, but that isn't where i am.

We have played with the HDS drivers and they aren't my cup of tea.

I have every respect for Joe as a designer, but we aren't currently inhabitting the same page as far as speaker design philosophy goes. Within the class of speaker he is targeting i expect this to be very good. He certainly is paying a lot of attention to the kinds of issues involved in this kind of design.

Quote:

As for reffering to the bass acting as a line source he maybe stretching it a little , but still you have 4 drivers spaced apart covering the bass that is still going to work pretty

Using Griffin, the line of drivers -- at the ~ XO point of the LF pair -- transitions to a point source at about 1m. As the frequency goes lower the transition happens closer to the speaker. So it doe snot act like a line source at all. The drivers are close enuff to act very effectly as a larger driver.

dave

454Casull · 21st February 2007, 11:05 PM

He's the guy who claims his sub performs like it's servo-controlled, right?

Ap · 22nd February 2007, 12:13 AM

"I'm perfectly serious. Just look at the impedance curve. ignoring the bass peak we have 8->18->4 ohms. Both XOs are in the critical band."

Ok, so the xover 'point' you dont like but that is different to too much xover & I dont understand the issue with impedance peaks- personaly I think the design is quite simple.
I agree about the bass, it does act more like a large woofer.

planet10 · 22nd February 2007, 12:49 AM

Quote:

Originally posted by Ap
I dont understand the issue with impedance peaks

With the amps i like to use that impedance is going to give wooley bass, a prominent midrange & a depressed top....

A speaker should never be divorced from the amp(s) it will be used with.

dave

Ap · 22nd February 2007, 02:02 AM

Ahh that makes sense you are from another (hifi) planet - SET perhaps?

20th February 2007, 08:29 PM	#1
PoorSound diyAudio Member Join Date: Jan 2006 Location: brandon	Joe's Elsinore Project. anyone seen this design? http://www.customanalogue.com/elsino...nore_index.htm what do you guys think of the design? looks incredible to me. anyone have some insight? maybe someone has built these themselves?

21st February 2007, 07:55 AM	#4
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	the MM-MTM is an effective way of using 4 smaller drivers (on the front of the box). A number of people have been showing the effectiveness of waveguide loading of a dome tweeter. Too much XO for my taste thou (and i'd put the bottom 2 drivers on the back) From the red bullet points. the line soouce coupling at LF is misleading & i don't see anything novel about the XO. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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21st February 2007, 02:29 AM	#2
PoorSound diyAudio Member Join Date: Jan 2006 Location: brandon	nothing?

21st February 2007, 07:48 AM	#3
Ap diyAudio Member Join Date: May 2002 Location: Sydney, Australia	Know of it but havent heard it, Joe is an excellent designer & have no doubt these would sound fantastic (I have heard his older designs). > Andrew.

21st February 2007, 08:55 PM	#5
Ap diyAudio Member Join Date: May 2002 Location: Sydney, Australia	Too much xover??? You cant be serious. I would have to say it is a very simple & effective xover. If you take a look at the mid-bass the only series components are a shelving filter, the tweeter just cap & resistor, bass single inductor - it doesnt get much simpler - unless you like single 'part-range' drivers. As for reffering to the bass acting as a line source he maybe stretching it a little , but still you have 4 drivers spaced apart covering the bass that is still going to work pretty effectively. http://www.customanalogue.com/elsinore/elsinore_7.htm

21st February 2007, 11:05 PM	#7
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	He's the guy who claims his sub performs like it's servo-controlled, right?

22nd February 2007, 12:13 AM	#8
Ap diyAudio Member Join Date: May 2002 Location: Sydney, Australia	"I'm perfectly serious. Just look at the impedance curve. ignoring the bass peak we have 8->18->4 ohms. Both XOs are in the critical band." Ok, so the xover 'point' you dont like but that is different to too much xover & I dont understand the issue with impedance peaks- personaly I think the design is quite simple. I agree about the bass, it does act more like a large woofer.

22nd February 2007, 02:02 AM	#10
Ap diyAudio Member Join Date: May 2002 Location: Sydney, Australia	Ahh that makes sense you are from another (hifi) planet - SET perhaps?

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