open baffle designs

[louped garouv]

anyone here use/used them?

seems as if the 604 crowd likes them

[Don C]

Ive been very curious about these. (http://www.linkwitzlab.com/)
I've never had a chance to hear them though.

[Titanium Dome]

Ive been very curious about these. (http://www.linkwitzlab.com/)
I've never had a chance to hear them though.


Don, you're so close, you should arrange to visit him or even rent one of his listening cottages on the ocean.

He's a very personable guy, and very smart, too. AND, he's a Californian...

In fact, maybe a few of us could take a couple of days and drive up to one of the cottages and spend a night or two.

[DavidF]

Ive been very curious about these. (http://www.linkwitzlab.com/)
I've never had a chance to hear them though.

Don, did you notice this page on Siegfried's site? A typical sea-side B&B except for the audio bonus in this one room. I have bookmarked this page for weekend get-away destination. What a fine view to add to the "imaging" aspect of the sound system!

DavidF

http://www.linkwitzlab.com/orion_searanch.htm

Edit: Yup, TD beat me to the point. Definite to-do on my list.

[Mr. Widget]

A local friend did call him up and was invited over to listen and learn... even served cookies by Mrs. Linkwitz... they're in Terra Linda or there abouts...


Widget

[hapy._.face]

What!? No cologne? :(

[louped garouv]

IS that Mr. Linkwitz of the Linkwitz-Riley crossover filter?




if it is..... how neat.

[doucanoe]

I run Electro Voice SP15's, SP12's, and 12TRX's in open baffle cabintets. Works very well with these drivers and even though there is a reduction in bass thump I think they sound better overall. In my case, my room is too small for 6-8 cuft cabs and my big 15's need room to breath. I can use them in a 3.5 cuft open back cabinet and get great results. They would get choked out in there otherwise.

RC

[toddalin]

Is this the type of design to which you refer??? Still has me scratching my head.

http://theaterathome.blogspot.com/2005/12/jamo-r-909-open-baffle-speakers.html

http://www.jamospeakers.com/Default.aspx?ID=2250&M=Shop&PID=15707&ProductID=17723

http://photos1.blogger.com/blogger/4539/1205/1600/Jamo-R909.jpg

[Mr. Widget]

IS that Mr. Linkwitz of the Linkwitz-Riley crossover filter?




if it is..... how neat.Yes... the very one.


Widget

[Don C]

Yes, that's the same guy. An off-topic story:
I first saw these speakers mentioned in The Audio Critic, and the author, Peter Aczel, mentioned that Siegfried used to be an engineer at Hewlett-Packard. I'm an HP guy myself (now Agilent) so I thought that was a pretty good endorsement. But nothing to get too excited about. Then later I was looking through and old copy of H-P Journal, and I found out that Mr Linkwitz was the program manager for the HP 8566 spectrum analyzer. Now that's impressive. I was working at a defense company when that instrument was released, and it was one of a half dozen differet spectrum analyzers that we had in our department. As soon as we got that one, the usage of all of the other instruments went to zero. We would wait in line to use "The Cadillac", and have arguments over who got to use it next. It was far superior to anything else that I had used. Of course now they can do far more and fit into a tenth of the space, but it doesn't matter, anyone who worked on the 8566 is OK in my book.
OK sorry for going off topic, back to your open baffle discussion.

[louped garouv]

Is this the type of design to which you refer??? Still has me scratching my head.



one among several variations i have stumbled upon...

me too....

i have years of reading to do...

[johnaec]

OK - can someone explain to me how an open baffle is able to reliably output LF without cancellation from the rear? :confused: I would imagine that these are extremely dependent on room setup for correct reproduction. :hmm:

John

[Mr. Widget]

It's been awhile since I read up on this, but I believe it is based on the fact that the roll off caused by phase cancellation is simple and predictable... you feed the woofer the inverse of that curve in a manner similar to the way we use the RIAA curve to compensate for space limitations on vinyl records.


Of course it requires a woofer that can take a fair amount of power and will never work for crazy SPLs.


Widget

[moldyoldy]

Or make the baffle big enough to run without EQ.....

[louped garouv]

Of course it requires a woofer that can take a fair amount of power and will never work for crazy SPLs.


Widget

from what i have read, seems more suitable to the jazz and blues in my collection as opposed to the 'techno'

...but supposed to image really well with quite the pleasant tone, dependent on transducer of course... ;)

like i said, more reading is needed in this area for me.

[Amok]

Linkwitz is also responsible for a type of circuit increasingly being used (probably unknown to most) in mass market subwoofers http://sound.westhost.com/linkwitz-transform.htm
He previously was the designer for Audio Artistry http://stereophile.com/loudspeakerreviews/328/ as well.
If you get a chance to hear his Orions, you should.
Widget, what did your friend think of them?

- AJ

p.s. I've got some JBL drivers on order for an upcoming OB design :)

[Mr. Widget]

Widget, what did your friend think of them?I think he was impressed... though he was more impressed with the Linkwitz's hospitality. I don't think he broke out his checkbook.


Widget