A superb Yamaha Natural Sound amplifier. ZDR (zero distortion rule amplifier). High efficiency Yamaha "X" power supply and "X" amplifier circuitry. Dual range peak power level indicators. 200 wpc, 0.002% THD, 20-20K Hz.
This amp was TOTL in 1982-84, $995 with no discount new.
I have the original box.
Don't be scared by the low price. $325 plus shipping.
This amp is in excellent sonic and cosmetic condition.

does this have the class "A" switch on it??

bully, you divesting?

A nice amp and a great price!