Harman Kardon Citation 11
Professional Solid State Stereo Pre Amplifier / Audio Equaliser (1976)
Dimensions: 16 x 12 x 5 inches
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Reviewed Dec 19th, 2015 by sousfa
I bought one for a second system that I have in another house. Best in it is irrepressible natural tonality. He is so good on this point that I haven't ear nothing like it. A lot of more expensive preamplifiers like Audio research ls7 has stronger deviations in tonality that you can hear it in the system no matter what you do. The electrical diagram is quite like Dynaco PAT 4 (only the audio circuit) with different components giving much better results on image smoothness and tonality.
The biggest negative point is related with is age, some grainy sound that you can hear only in very high definition systems. It is also not the best pre for power amps difficult to drive.
I Highly recommend this pre to drive tube power amps or other easy driving amps. If you have one I recommend that all electrolytic capacitors are replaced for new ones ( good audio capacitors).