Audio Research Reference 75 power amplifier Specifications
Description: Tubed power amplifier. Tube complement: four KT120, two 6H30. Maximum output power: 75Wpc continuous, 20Hz20kHz (18.75dBW into 8 ohms). Total harmonic distortion (1kHz): typically 0.6% at 75W, <0.05% at 1W. Power bandwidth: 3dB, 7Hz60kHz. Frequency response at 1W: 0.7Hz75kHz, 3dB. Input sensitivity: 1.4V RMS, balanced, for rated output (25dB balanced gain into 8 ohms). Input impedance: 300k ohms, balanced. Slew rate: 10V/µs. Risetime: 4µs. Power-supply energy storage: ca 520 joules.
Dimensions: 19" (483mm) W by 8.75" (222mm) H by 19.5" (495mm) D. Handles extend another 1.5" (38mm) forward. Weight: 47 lbs. (21.3kg) net, 63 lbs (28.6kg) shipping.
Finishes: Silver, Black.
Serial number of unit reviewed: 22306601.
Price: $9000. Approximate number of dealers: 55.
Manufacturer: Audio Research Corporation, 3900 Annapolis Lane N., Plymouth, MN 55447-5447. Tel: (763) 577-9700. Fax: (763) 577-0323. Web: www.audioresearch.com.