From The Vintage Knob: Launched as an absolute amplifier project in 1978 with the famed Matti Otala at the helm, the CITATION XX landed in the catalogs circa 1980/81 and in a few (rich, very rich) homes at about the same time.
(1 kHz, 65dBf) Mono: 0.05 Stereo: 0.08 Output Level/Impedance (Stereo 775mV/2.2k Ohms AM Section Sensitivity External antenna: 8V Loop antenna: 250V/m Alternate Channel Selectivity: 60dB General Dimensions (W x H x D x x (443 x 68 x 372 mm) Weight: 8lbs.
Its rated at 70 watts rms X 7, with, apparently, no provision to increase front power if you dont need the extra amplification in a 5.1 system. However, I suppose one could configure the extra amp channels to drive a bi-amp speakers or a system.
6oz. (3.8kg) Power Supply: AC 120V, 60Hz Power Consumption: 16W Sold Separately Citation XX Amplifier 6,000 USD OBO Citation XXP Pre-Amplifier 3,000 USD OBO Citation TU915 Tuner 1,000 USD OBO Sold Together Amp, Pre-Amp Tuner 7,500 USD OBO E-mail Mike for payment and shipping details.
The amp, pre-amp and tuner were recently cleaned, serviced and certified by Analogique, New York City's premier audio service systems laboratory (they are guaranteed 100 to original specification). PDF copy of servicing/certification is free for download here.
I think the early and mid 1970's was a difficult time for solid state design. It was still making strides into the future. I had been skeptical of subjective reviewing prior to my experience, but I am much less skeptical now.
PDF copy of servicing/certification is available at no charge (see below). The amp and preamp were also cleaned and serviced by the harman/kardon factory in 1996, and a PDF copy of that report is also available to you.