Toshiba SA-304 4-Channel AM-FM Receiver. circa 1974
15 W/ch continuous power into 8 ohms at 0.8% HD and each channel driven separately. 20 W/ch for 2-channel operation. FM sensitivity 2.5 uV for 30 dB quieting. Has built in RM (Regular Matrix) and SQ 4-channel matrix decoder. Has input provisions for CD-4 discrete decoder as well as universal line inputs.