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Harman Kardon Citation 1 tube preamp. I have not seen a nicer Citation 1 ever listed on . This unit has been thoroughly checked over, it performs flawlessly, all the controls are quiet. This is one of the best tube preamps ever built, and it is highly sought after. The tubes consist of 5 RCA, and 4 Telefunkins. I had the walnut cabinet custom built, it cost almost $200, it looks beautiful and fits the preamp perfectly.
The Harman Kardon Citation I stereo preamplifier represents the culmination of extensive research and experimentation. The keynote is unparalleled performance, and no compromise has been made in the design of this magnificent instrument.
Every feature demanded by the professional has been incorporated, and several new ones added. Each is important to the proper operation of your system.
Features include separate Bass and Treble step type tone controls for each channel. The controls are completely out of the circuit when in the flat position to eliminate phase shift and transient distortion inherent in all tone controls. Special treble cut contains scratch filter for sharp roll-off without ringing.
Each amplification stage is flat over an extremely wide range and is surrounded with a response loop, resulting in unmeasurable distortion and phase shift.
All operating controls arranged in logical grouping to facilitate operation.
Frequency response: 5Hz to 80kHz
Total harmonic distortion: 0.05%
Input sensitivity: 2.5mV (MM), 100mV (ceramic), 200mV (line)
Signal to noise ratio: 85dB (line)
Output: 300mV (line), 2V (Pre out)
Valve complement: 9 x ECC83/12AX7, 5 x ECC81/12AT7
Dimensions: 14-7/8 x 12-1/4 x 6 inches