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In Reply to: RE: THE Gunn'ed 3.6Rs (?) posted by neolith on January 09, 2015 at 18:14:51
Look at the styles, they are different.The ones for sale are made from 2 vertical pieces/side edge(2 different woods ripped and glued together).
The funky ones are only made with 1 vertical piece/side edge (1 board with splotchy grain pattern).
Correction: The funky ones are also made with 2 ripped/joined pieces/side.
https://www.audioasylum.com/usr/1/13891/Maggies.jpg
http://img.usaudiomart.com/uploads/large/881461-magnepan-36r-custom-made-by-magnestand-rare-one-of-a-kind-pair.jpg
Edits: 01/09/15 01/09/15Follow Ups:
it means that John made another set in the same style...after all the controversy over the Varkdriver pair. Hmmmm. Cherry DOES darken over time, maybe this explains the difference in looks? Or different lighting?Mark in NC
"The thought that life could be better is woven indelibly into our hearts and our brains" -Paul Simon
Edits: 01/09/15 01/09/15
I think you maybe correct. I found another image of the old ones. It was made of 2 ripped/joined pieces. The colors of the figured wood must have changed over time.
Edits: 01/09/15
And another ripped 2-tone.
.
is that (IIRC from the old thread) he didn't use a true three-way crossover- it was more of a two-way, w/o a midrange band. Like a 2.5R/2.6R,
apparently.
Mark in NC
"The thought that life could be better is woven indelibly into our hearts and our brains" -Paul Simon
This is the crossover utilized in the Magnestand 3.6. It's a series conversion but with the tweeter driven via a standard parallel network.
Dave.
Ah, interesting. So no low-pass on the mids?
Mark in NC
"The thought that life could be better is woven indelibly into our hearts and our brains" -Paul Simon
Yep. Which is quite a departure from the stock 3.6 crossover which uses a fairly steep electrical filter on the midrange top end.
The ribbon tweeter in this configuration is not embraced for its advantages but viewed more as an augmentation super-tweeter.You'd have to ask PG's crossover design guy what he was thinking, but since they approached everything from the series configuration paradigm a "hybrid" setup like this emerged.
Interesting horizontal polar response in the upper end I would imagine.
Dave.
Edits: 01/11/15
Can someone simulate the frequency responses for that crossover?
Yep, I did this quite awhile back when I was conversing with Nate regarding it. Heck, it's been almost five years ago now. Time flies. :)Dave.
Edits: 01/11/15 01/11/15
Thanks Davey!
Peter does some beautiful wood work.
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