Solid State Power Amp Reviews

Sumo Andromeda: Solid-state, class-AB stereo power amplifier. Rated power: 200Wpc into 8 ohms (23dBW) at less than 0.05% THD, 375Wpc into 4 ohms (22.8dBW) at less than 0.1% THD.
Dimensions: 19" Wby7" D by 83,4 " H. Weight: 35 lbs.
Price: $899.
Manufacturer: AllAmerican Audio, Inc., Westlake Village, CA, 91362.

Sumo Andromeda II: Solid-state stereo power amplifier. Rated power output: 240Wpc into 8 ohms (23.8dBW) with less than 0.05% THD, 400Wpc into 4 ohms (23dBW) with less than 0.1% THD, from 20Hz–20kHz. Intermodulation distortion (IMD): 0.05% from 0.25W to full power. Frequency response: ±0.1dB 20Hz–20kHz, –3dB from 0.1Hz–170kHz. Input impedance: 47k ohms. Input sensitivity: 1.8V RMS for rated output. Hum and noise: 110dB below rated power. Rise time: less than 2µs. Slew rate: 115V/µs. Damping factor: greater than 500.
Dimensions: 19" W by 7" H by 16.75" D. Weight (shipping): 55 lbs.
Price: $1499. Approximate number of dealers: 100.
Manufacturer: Sumo, Chatsworth, CA 91311.

Sumo Andromeda III: Solid-state, stereo power amplifier. Rated power: 240Wpc into 8 ohms (23.8dBW); 400Wpc into 4 ohms (23dBW). Frequency range: 20Hz–20kHz (no limits given). THD: <0.1%. IMD: <0.05%. Risetime: less than 2;us. Input impedance: 47k ohms. Damping factor: >500.
Dimensions: 19" W by 16.5" D by 7" H. Shipping weight: 50lbs.
Serial number of sample reviewed: 8102121.
Price: $1799. Approximate number of dealers: 50.
Manufacturer: Sumo Products Group, Agoura Hills, CA 91301. Company no longer in existence.