This auction is for a Vintage McIntosh C22 Two Channel Preamplifier. All parts shown are original and in good working order. The item shows some normal wear but it is in fantastic condition for it's age. It comes with the original wood cabinet. 

Response 20-20kHz (+0.5 -0.5dB). 

Distortion 0.02%. 

Noise and hum -85dB high level. 

Output rated 2.5v, 10v max. 

Input sensitivity and impedance: aux

0.25V at 250k, phono 2mV at 47k. 

Center channel out (L+R) 1.0v with control. 

Individual tone controls:bass and treble +20dB to -20dB. 

Rumble filter 50Hz at 12dB/octave. 

HF filter 5kHz at 12dB/octave. 

Low frequency trim controls 6dB of boost below 100Hz. 

Voltage gain 20dB aux, 62dB phono.