Post your Solid State pics here

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This is my amplifier, I do it myself.
Thanks for watching
 

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Here is one of a pair of AMB Beta 24 monoblocks I recently completed. The large power supplies for the output stage, the xfmr for the regulated supply, and the soft start circuit are all housed in the lower aluminum square tubing. Barrier strips are used to connect the power and star ground to the top portion. The idea was for an enclosure that isolates the power electronics from the amp boards without letting the size get out of hand.

The side panels are 1/4" aluminum. The I/O panels are aluminum angle. The rear cover is perforated stainless cut and bent to size. The finish is DIY powder coat. I tried to have as few visible fasteners as possible. Vent holes are placed under the xfmr, meanwells, and heatsink fins, hopefully allowing for natural airflow up through the PSU enclosure and out underneath the amp heatsink.

I built this amp in 2018 and recently re-cased it with new aluminum, soft start, and speaker protection. The "finishing touch" was the powder coating.

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"It's not my amp but "

Ahh, thanks for pointing that out; now with a closer look, I see the TO3's! Great free-form imagination...

It may take a hit to the MTBF, but it could be used as an insect zapper in a pinch!

David
 
Last edited:
@PScal

Looks excellent. Kudos! Is that a Modushop 4U/300 heatsink?

Are you sticking with Ti’s original bias recommendations or have you played with more bias current?

Would love to get a subjective review of the AMB B24 sound quality from you. It is one of the few (very few!) fully differential and fully discrete designs I know of.

Best,
Anand.
 
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