Heathkit AA-121 Stereo Power Amplifier

Channels:		2

Power output:		80 watts (40 w. per channel) Heath Hi-Fi Rating
			98 watts (49 w. per channel) IHFM Music Power Output (0.7% THD, 1kc)

Power response:		± 0.5 db, 20-20,000 cps at 40 watts output per channel

Harmonic distortion:	1.5% or less, 20-20,000 cps, at 40 watts output per channel.

Intermodulation distortion: 0.5% or less at 40 watts output per channel, 60 and 6,000 cps mixed 4:1

Hum and noise:		85 db below 40 watts output

Channel separation:	70 db or better at 1 kc

Input sensitivity:	0.95 volts rms for 40 watts output per channel

Outputs:		4, 8, 16 and 32 ohms per channel
			center speaker terminals can be used with 4, 8 or 16 ohm speakers

Damping factor:		16:1, 8 and 16 ohm taps; 12.5:1, 4 ohm tap

Controls:		A channel: bias balance, bias voltage, level
			B Channel: bias balance, bias voltage, level
			Function selector
			Phase and power switches

Tube complement:	(2) - 6AN8
			(4) - EL34
			4 silicon diode rectifiers
			1 selenium bias rectifier

Power requirements:	117 volts, 50/60 cycles. 180-220 watts

Power outlets:		2 AC outlets; 1 switched, 1 unswitched

Color and finish:	Metallic bronze, expanded metal dust cover; black chassis with ivory lower front panel

Dimensions:		7¼" H x 15" W x 11" D.

Weight: 37 lbs