New KT-88

[TUBEDUDE]

Been working on a cabinet for this KT-88 amp I finished a few months ago. I'm experimenting with the cab to get a more even response independent of position.
I originally wanted to use the horn sheaths to disperse mids and treble to the rear of the cab while making the cab generate a bigger low end. The rear horn slot is so small I decided to port the cab also to keep from pressurizing the cab. I figured I could cut two ports in the bottom and make little horns to direct the sound to the sides. I hoped it would work as I want to make a cab for the Maggie project that does this, directing one speakers output left and one to the right, for maximum stereo spread.
With a baffled speaker held in place with a few screws it performed well. The frequency response was the same, front, back or sides. There were some resonances when I swept the cab 80Hz-8kHz. But the speaker is barely held in place. After all is finished I'll sweep it for resonance and deal appropriately. Here are some images of the work in process and a sketch of the goal.

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[xtian]

Fancy and interesting! Can't wait to see it finished up!

[10thTx]

THANKS for sharing! That is a very cool idea. Please keep us posted on how this works out.

With respect, 10thtx

[TUBEDUDE]

I probably should've posted this in speakers and cabinets.

[Guy77]

That looks amazing! Congrats on a great design idea.

Cheers

Guy

[TUBEDUDE]

Well here she is. Still finish work to do but it works well in the shop. Have to take it out for a test drive.

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[xtian]

Woah! That's a surprise reveal--it's very menacing now, like a Tim Burton night stand or William Burroughs typewriter...watch out it doesn't try to snack on your leg!

[ViperDoc]

That torched exterior is “HOT”! Very nice.

[TUBEDUDE]

The phone camera and angle make the top look larger, (and more menacing), but the sides are parallel.

[Colossal]

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[TUBEDUDE]

My new screensaver!