Heath AA-161 Mono Tube Integrated Amplifier

  

Some cosmetic blemishes and scratches. Harmonic distortion: Less than 2% at 30 cps to 15 kc at 14 watts output. Intermodulation distortion: 2% or less at 14 watts output using 60 and 6,000 cps signals, 4:1. Phono input, 55db below 14 watts; tuner and crystal phono, 65 db below 14 watts.

Input sensitivity: For 14 watts output; Mag phono, 0.004 v at 1 kc; crystal phono, 0.2 v; tuner 0.25v, with tone controls flat. Outputs: 4, 8 and 16 ohms.

Controls: 3-position function selector switch, bass and treble tone controls, volume control. Tube complement: 1-6EU7, 1-6AU6, 1-6AN8, 2-EL84/6BQ5, 1-EZ81/6CA4. Color and finish: Charcoal grey steel cabinet and upper front panel with ivory colored bezel and lower front panel.