Sonic Frontiers SFD-2 D/A processor Specifications

Sidebar 9: Specifications

Description: Digital/Analog Converter with vacuum-tube output stage. Filtering: 8x-oversampling, HDCD. Conversion: differential 20-bit UltraAnalog DACs. Output stage: Fully balanced vacuum-tube. Tube complement: two Sovtek 6922 dual triodes (6DJ8). Digital inputs: coaxial on RCA jack, AES/EBU on XLR jack, and ST-type optical. Digital outputs: one S/PDIF on RCA jack. Analog outputs: one pair single-ended on RCA jacks, one pair balanced on XLR jacks. Frequency response: 5Hz-20kHz ±0.5dB. S/N ratio: >110dB ("A" weighted). Channel separation: >105dB at 1kHz, >85dB at 10kHz. THD: ±0.05%. Output voltage: 3.5V single-ended, 7V balanced.
Dimensions: 19" W by 4" H by 13" D. Weight: 26.5 lbs net.
Price: $4695 (1993); $5295 (1995); no longer available (2005). Approximate number of dealers: 40. Warranty: 5 years parts and labor, 1 year on tubes.
Manufacturer: Sonic Frontiers, Inc. (1993–1995), Oakville, Ontario, Canada; Paradigm Electronics Inc. (2005), 205 Annagem Blvd., Mississauga, Ontario L5T 2VI, Canada. Tel: (905) 632-0180. Fax: (905) 632-0183. Web: