I don't have a schematic, but IME, most consumer hifi amps have a +/- supply
of much higher voltage. IIRC, my old Pioneer SA-7100 p.s. (25? wpc)
supplies +/- 45 volts or so to the outputs.

peter wrote:
I am looking for the schematic of the above amp or the output voltage
for the power transformer. My customer switched the input vaoltage to
120V and plugged into 240V burning out the Xformer. I am guessing it
is either 24VCT or 30VCT.
TIA
Peter