Digital Processor Reviews

Description: Single-box D/A provessor. Conversion: Bitstream, PDM—256x resampled. Data input sampling range: 40kHz–50kHz. Digital filter: 4x. Analog post filter: 3rd-order at 60kHz. Noise shaping: second-order. Inputs: coaxial on an RCA jack, optical on a Toslink jack. Outputs: RCA jacks, 2.75V output level at full scale. Three front-panel indicators: analog/digital power, incoming data lock. Frequency response: 20Hz–20kHz ±0.2dB. Resolution: 16 bits. THD+noise: –90dB. S/N ratio: greater than 93dB. Channel separation: 80dB (no frequency specified). Linearity: ±1dB at –90dB, ±2dB at –100dB. De-emphasis error: ±0.25dB.
Dimensions: 8.5" W by 1.75" H (front panel), 7.4" W by 1.75" H by 5.75" D (chassis including jacks). Shipping weight: 5 lbs.
Price: $399 (1991–1992); no longer available (2014). Approximate number of dealers: 84 (1991).
Manufacturer: Audio Alchemy, Inc., Westlake Village, CA 91362 (1992). Company no longer in existence (2014).