Conrad Johnson Premier 140

I would rate this unit an 8/10 because of age but it has one long
scratch on the face.  See picture.  Audiogon suggest that I rate an Average ( 5/10)...
It's in perfect working condition and it sounds great.

conrad-johnson Premier 140 Vacuum Tube Power Amplifier

The Premier series of conrad-johnson products are precision music
reproduction instruments designed to meet the needs of audio industry
professionals and other audiophiles who require near perfection from
their reference systems.

The input signal is amplified by a single-ended triode amplifier
designed for wide band-width. The signal is then direct coupled to a
cathode coupled phase-inverter. This high current, triode phase-inverter
stage provides a balanced, low impedance drive to the output stage.
Output power is developed by two pairs of 6550s per channel, chosen for
their excellent sonic character, high power, and reliability. The output
tubes are operated in ultralinear configuration which offers a
desirable combination of high power and low distortion. Massive output
transformers with intricately interleaved windings afford extended
bandpass and high phase linearity. A small amount (about 12 dB) of loop
negative feedback reduces distortion and achieves a sufficiently high
damping factor to control reactive loudspeaker systems.

The Premier 140 amplifier maintains the exacting quality standards for
which conrad-johnson is internationally known. Resistors are precision
tin-oxide deposited on glass and bulk metal foil. All audio-circuit
capacitors are polystyrene, while the power supplies use large value
polypropylene in parallel with polystyrene capacitors. There are no
electrolytic capacitors in the audio circuits or in the related power
supplies. Proprietary wide-bandwidth output transformers contribute to
excellent high frequency performance. Even the machined gold plated OFC
connectors and the internal wiring have been carefully selected for
optimal sonic performance. Attention to details of this kind enable us
to extract the full potential from our circuit designs and ensure that
our products will perform to this potential for years to come.

Specifications:

• Power: 140 watts RMS per channel both channels driven into 4, 8, or
  16 ohms (depending on configuration, default is configured for 4 ohms)
  from 30Hz to 15KHz at no more than 1.5% total harmonic distortion or
  
  intermodulation distortion.
• Sensitivity: 1.1 volts rms to rated power.
• Gain: 27 dB
• Small Signal Distortion: Less than .1% at midband
• Phase: Phase correct (non-inverting)
• Frequency response: 20Hz to 20KHz +0, -.5dB
• Hum and noise: 104dB below rated power output
• Input impedance: 100K ohms.

Mechanical:

• Dimensions: 19W | 8H | 19D inches
• Weight: 85 lbs.