Ampzilla III

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Might be. The bias is supposed to be better compensated for temperature. The frequency compensation is for slower devices and you could probably just drop in current ON Semiconductor devices without too much problem.

A store I worked at sold Sumo, it was OK.

Frankly, the Leach sounded better.
 
"What are those output devices in Andromeda?"

2SC1116A, 2SA747A

"but has weak bass.Is that true?"

No.

If you like warm, muddy bass, just remove the 22µF power supply bypass caps.

"Andromeda had some good reviews. "

Compared to what?

I sold Sumo, Nakmichi, Counterpoint, Adcom, Carver, Yamaha, McIntosh, Harman Kardon Citation, etc, etc.

My Leach sounded quite a bit better.

I had almost everything come through my repair shop: Electrocompaniet, Threshold, Forte, Linn, Mark Levinson, you name it.

The Electrocompaniet and Threshold had promise, the ML sounded much better after some mods.
 
These look like mosfets.
Are there other versions with bipolars, or am I missing something?
 

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