Sumo Theorem D/A processor Specifications

Sidebar 4: Specifications

Description: D/A processor. Frequency response: 20Hz–20kHz, ±0.5dB. THD: ±0.004% at 2V output. IMD: ±0.01 at 2V output. S/N ratio: !w100dB. Channel separation: !w80dB. Induced jitter: ±80 picoseconds. Digital filtering: 8x-oversampling. Conversion: hybrid 1-bit/multi-bit DAC. Analog section: Fully discrete, DC-coupled. Inputs: two coaxial (RCA jacks), one optical (Toslink jack), "clock" input (see text), AT&T ST-type optical optional. Outputs: unbalanced on RCA jacks.
Dimensions: 19.5" W by 1.75" H by 9" D. Weight: 10 lb, shipping.
Price: $799 (1992); no longer available (2019). Approximate number of dealers: 50.
Manufacturer: Sumo Products Group, Agoura Hills, CA 91301 (1992); company no longer in existence (2019).

Sumo Products Group
Agoura Hills, CA 91301
Company no longer in existence (2019)

Ortofan's picture

... "mediocre" - not even damning with faint praise this time.
$800 would have been much better spent on a Sony CDP-X339ES or, for something different, a Pioneer Elite PD-65, or even a JVC XL-Z1050TN.