AI-generated approximation — not official manufacturer imagery.
About the SFD-1 MKII
The Sonic Frontiers SFD-1 MKII is a 1990s vintage tube D/A converter using a single UltraAnalog DAC chip and an HDCD-capable digital filter/decoder, positioned as the more affordable sibling to the balanced, dual-DAC SFD-2 series. It features a tube analog output stage based on 6DJ8/6922-type tubes for a smooth, slightly laid-back presentation, and omits balanced outputs, reflecting its simpler single-chip architecture compared with the flagship SFD-2. The MKII revision incorporates an updated digital board with HDCD chipset (PMD100 family) for improved resolution on HDCD-encoded discs while maintaining excellent performance with standard 16/44.1 program material, making it a sought-after used-market DAC among enthusiasts of classic R-2R and tube designs. Production has ended, and surviving units are typically maintained via specialist servicing (including tube and capacitor renewal) due to their age.
Specifications
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