Visions of Holey-Basket Corals - Page 2

Cal Weldon · 7th May 2009, 11:30 PM

Quote:

Originally posted by pjanda1
Cal,
I'm interested in the details of your design too

Oops, that last post was for another thread. The design of the bi amped 4 way includes two cabinets in one, the front being the 3 way with a 100Hz cut off, and the Coral running OB at 1000Hz. The back of the cabinet is the woofer, PR and plate amp. The shot you see is an old one when I was trying out the Foster 10F3's you see in the boxes a couple of posts up.

Brisso57 · 10th May 2009, 11:07 AM

Quote:

Originally posted by pjanda1
Black cones would be cool. I'll post pics of whatever I've got.

pj

Here's a picture of my black holey baskets ...

cheers
Doug

bcrescen · 21st July 2010, 10:19 PM

I'm enjoying a pair of Corals from a 500A. Now I would like to use the rest of the goodies to build a SE guitar amp. Can someone help me understand the windings for these Sony Opts? I used the AC voltage test to measure the secondary windings. One pair appears to be about 8K and the other to low to measure. I assume I'll use the 8k secondary for my project but would like to know what the purpose of the other winding was in the reel to reel.

planet10 · 21st July 2010, 10:22 PM

I have some diagrams at home. Poke me if i forget to post them

dave

bcrescen · 21st July 2010, 11:09 PM

Thanks Dave. You sent me a pair of your phase plugs a few months ago and they take these speakers to a new level. Look really nice too.

planet10 · 22nd July 2010, 02:24 AM

Quote:

Originally Posted by bcrescen

Thanks Dave. You sent me a pair of your phase plugs a few months ago and they take these speakers to a new level. Look really nice too.

here are pics & a map.

dave

21st July 2010, 10:22 PM	#14
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	I have some diagrams at home. Poke me if i forget to post them dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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21st July 2010, 10:19 PM	#13
bcrescen diyAudio Member Join Date: Sep 2005	I'm enjoying a pair of Corals from a 500A. Now I would like to use the rest of the goodies to build a SE guitar amp. Can someone help me understand the windings for these Sony Opts? I used the AC voltage test to measure the secondary windings. One pair appears to be about 8K and the other to low to measure. I assume I'll use the 8k secondary for my project but would like to know what the purpose of the other winding was in the reel to reel.

21st July 2010, 11:09 PM	#15
bcrescen diyAudio Member Join Date: Sep 2005	Thanks Dave. You sent me a pair of your phase plugs a few months ago and they take these speakers to a new level. Look really nice too.

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