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You'll find the rest of the pics in his post. Very ingenious I say. https://community.klipsch.com/index.php?/topic/39539-klipschorn-center-channel-mod-finished/?hl=man

Here's Qman's system then.

Qman did it. The center channel (at the time) was a Khorn mounted horizontally, exhausting to the ceiling, top hat and tweeter were in front. I believe he replaced the center channel witha University Dean (he called Classic).

Pots, but L-pads or even T-pads will work.

The steel box is 7 x 5 x 3, too small in my opinion. I'll use a larger aluminum box, if I were you, or a different mounting method.. Let me know if you need more details. Good luck on your Classics!! (And post more pictures when they get completed).

With the controls added. The pots are 50ohm units, I checked them, (I did my OHM WORK).

Most of this info is in the Classic thread, but the schematic is added on the lower left corner, for a simple N-3 without brilliance and presence controls.

Fanplant, I replied to your pm, but you haven't responded back. Good job on that Classic !!! (soon to be a pair). I envy you cause I still have a single unit. The schematic that Marvel posted has all the info you need to build an N-3 equivalent. Here's more info though. It may be helpful, maybe not. The brown cap is a dual-section 30/30 ufd for the woofer, the larger one is the 4.2ufd. The inductor on the left is the .28 mH, and the one on the right is a center-tapped woofer inductor, for a selectable woofer crossover, 350 or 700hz. The caps are jumpered at the terminal board for a parallel connection for 350 hz. I couldn't find my LCR meter, so I can't verify the values of the inductors.

Congratulations, Bruce!!!