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Bi-Amped K-Horn + K-402 horns w/ KPT-415 woofers


Khornukopia

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Bought a case of Sound Seal acoustic wall panels. Made of one inch thick rigid fiberglass and covered with Guilford acoustic cloth. Several of these on the walls of a room make the room sound better.
 
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Where did you get the Materials for these


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24 minutes ago, carlthess40 said:

Where did you get the Materials for these

 

I bought the factory wrapped panels as seen in the picture, but you can save a bunch of money if you order the Owens-Corning 700 series rigid fiberglass boards from your local hardware store and the fabric from Guilford of Maine, or AcousticalSurfaces.com, or the fabric aisle in some local craft stores. On my panels, it looks like they first sprayed the edges of the fiberglass panels with a coat of contact cement that was allowed to dry, creating stiff corners, then sprayed again with contact cement to adhere the fabric wrap.

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On 7/16/2021 at 1:10 PM, Khornukopia said:

Had some big old cabinets sitting around, so I pulled the original sub drivers out, veneered the cabinet faces and swapped in some 18" Ultimax subwoofer drivers, shown here inside out. These Ultimax have dual 2 Ohm voice coils, but for my application I connect the voice coils in series to give the amplifier a nominal 4 Ohm load. 

 

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Good move. 2 ohms look like short  circuit to some amplifiers!

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On 7/18/2021 at 6:40 PM, Westcoastdrums said:

When are you going to come visit and help me veneer my JBLs?  😀

 

I should take a vacation and visit you, your speakers and other interesting places near your new home. What woodgrain are you thinking of putting on your speakers?

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On 7/18/2021 at 7:33 PM, ClaudeJ1 said:

Good move. 2 ohms look like short  circuit to some amplifiers!

 

Yes it works good for me and produces more SPL than I need. In a bigger room, I might like to hook up one Pro amp channel per 2 ohm voice coil just for fun.

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13 hours ago, Khornukopia said:

 

I should take a vacation and visit you, your speakers and other interesting places near your new home. What woodgrain are you thinking of putting on your speakers?

Don't know as of yet, but we should talk. Come down to visit, you have my number. We can make a day out of it. 

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