Sumo Polaris II power amplifier Specifications
Description: MOSFET stereo amplifier. Power output: 120Wpc into 8 ohms (20.8dBW), both channels driven, from 20Hz–20kHz with less than 0.05% THD; 200Wpc into 4 ohms (20dBW), both channels driven, from 20Hz–20kHz with less than 0.1% THD. SMPTE IM distortion: less than 0.05% (0.25W–120W, 8 ohms). TIM: unmeasurable. Hum and noise: 105dB below rated output, 90dB below 1W. Frequency response: –0.1dB from 20Hz–20kHz, –3dB from 1Hz–200kHz. Input sensitivity for rated output: 1.3V; for 1W: 130mV. Input impedance: 47k ohms. Damping factor: greater than 500. Risetime: less than 2µs. Separation: greater than 80dB.
Dimensions: 19" W by 5.25" H by 11.5" D. Weight: 30 lbs.
Serial numbers of review samples: none (first sample), 3200166 (second sample).
Price: $799. Approximate number of dealers: 100.
Manufacturer: SUMO-Music Communications Systems Inc., Chatsworth, CA 91311 (1991); company no longer trading (2007).