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Old 7th July 2004, 03:20 AM   #1
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Default Heatsink Extrusion

Hello -

I have a vague memory of a top-line Japanese power amplifier from the 1980s that had a very unusual heatsink extrusion. Instead of having fins, it had hexagonal "cells". It may have been Luxman, but I'm not sure. A quick search of the web didn't turn anything up. Does anybody remember this amp? Any help would be appreciated.

Thanks,
Charles Hansen
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Old 7th July 2004, 03:25 AM   #2
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Pioneer A-90 and family.
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Old 7th July 2004, 03:31 AM   #3
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Charles,

I have one sitting on my bench. It's yours if you want it.
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Old 7th July 2004, 06:17 AM   #4
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Hello Jam,

Thanks for the kind offer! That is the extrusion I was thinking of. It must be quite difficult to make, requiring a costly extrusion die.

Didn't someone else also use a similar extrusion? I still have a fuzzy memory of a silver amplifier that had these hexagonal extrusions externally placed on each side. But maybe I'm just getting old and senile...

Thanks,
Charles Hansen
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Old 7th July 2004, 06:41 AM   #5
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Charles,

Luxman did have an amp that had square cells. The major part
of the sink was ~ 5" wide 5" high and ~1" deep with 4 one inch
square cells.

Regards,
Woody
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Old 7th July 2004, 03:43 PM   #6
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Thanks for the info Woody. I'm pretty sure that was the one I was thinking of. Do you remember the model number of that amp?
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Old 7th July 2004, 04:33 PM   #7
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Quote:
Originally posted by jam
Charles,

I have one sitting on my bench. It's yours if you want it.


Strictly speaking of design esthetics, that pioneer is pretty sweet!
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Old 7th July 2004, 06:01 PM   #8
jam is offline jam  United States
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Default More Heatsink Porn!

You guys might mean the Luxman L-85V.
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Old 7th July 2004, 06:05 PM   #9
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Another shot.
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Old 7th July 2004, 06:07 PM   #10
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Last one.
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