Conrad-Johnson Premier Seven preamplifier Specifications

Sidebar 2: Specifications

Description: All-tube dual mono preamplifier. Controls: Source (Phono, Tuner, CD, Tape 1 & 2), Record (Phono Tuner, CD, Tape 1 & 2), Level, AC Power. Inputs: Phono (MC or MM), Tuner, CD. Outputs: Main 1 & 2. Gain: 40dB phono, 29dB line. Phono load resistances: 70, 100, 150, 250, 470, 1k, 2k, 5k, 10k, and 47k ohms. Phono overload: 150mV at 1kHz. Max output: 20V RMS. Frequency range: 2Hz to more than 100kHz (bandpass). RIAA EQ accuracy: ±0.25dB, 20Hz–20kHz. Hum & noise: –80dB ref. 10mV input (phono), –88dB ref. 2.5V out (line). Output impedance: less than 200 ohms. Distortion at 1V output: less than 0.25% THD and IMD.
Dimensions: Audio section 7" H by 19" W by 16" D; power supply 31/2" H by 19" W by 153/4" D. Shipping weight: 60 lbs.
Price: $7850 (1988); no longer available (2008). Approximate number of dealers: 150.
Manufacturer: Conrad-Johnson design, 2733 Merrilee Drive, Fairfax, VA 22031. Tel: (703) 698-8581. Fax: (703) 560-5360. Web:

Conrad-Johnson design
2733 Merrilee Drive
Fairfax, VA 22031
(703) 698-8581

Zarathustra's picture

Enter not the PV-9 but the Evolution 20 'SE' version the one Chassis Premier Seven with all the right ergonomics and great sound.
'SE' version had the same updates as the Premier Seven 'B' and the same tubecomplement.