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SFD-2

Name: Sonic Frontiers SFD-2
Brand: Sonic Frontiers

Sonic Frontiers

SFD Series

DigitalDACsDiscontinued

Estimated price (community-sourced)

$4,695

About the SFD-2

The Sonic Frontiers SFD-2 is a digital processor and DAC with a fully balanced vacuum-tube output stage using two Sovtek 6922 dual triodes (6DJ8). It employs dual UltraAnalog D20400A 20-bit DACs with 8x oversampling and HDCD decoding. The unit offers three digital inputs: coaxial (RCA), AES/EBU (XLR), and AT&T ST-type optical, plus a digital output (S/PDIF RCA). Analog outputs include balanced XLR and single-ended RCA connectors. The frequency response is 5Hz to 20kHz ±0.5dB, with a signal-to-noise ratio over 110dB (A-weighted), total harmonic distortion of ±0.05%, and channel separation exceeding 105dB at 1kHz. The output voltage is 3.5V unbalanced and 7V balanced. The chassis measures 19" W x 4" H x 13" D (48cm x 10cm x 33cm) and weighs approximately 26.5 lbs (12 kg). Originally The SFD-2 is praised for its musicality, delivering deep, tight, and powerful bass with a warm and full sound character, making it a highly regarded vintage DAC despite being discontinued.

Specifications

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