Class A amplifier with 2SC3264 and 2SA1295

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gili_flash said:
two pairs of 2SC3264 and 2SA1295

That is only 2 devices for 1 channel.
50 watts in class A translates to a minimum dissipation of 110 watts, 55 watts for each device.
With proper heatsinks it can be done, but not recommendable.

The SA1295/2SC3264 is a higher voltage rated combo, used for high power amplifier output stages.
Shame to waste on a 50 watter.
Better would be to use a single pair in high bias class AB, something like 20/25 watts in class A and 50 in B.

See: Electrocompaniet
 
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