RME Digiface USB vs Parasound Zdac
The Zdac's thd is 0.015% against the RME Digiface USB's 0.100%. Both share bit depth (24-bit), max sample rate (192 kHz), and signal-to-noise (110 dB).
AI-generated product photo — not official manufacturer imagery.
RME Digiface USB
RME AudioDigitalDACs
Estimated price (community-sourced)
$350 - $399
Around — community and catalog average, updates slowly
About the RME Digiface USB
The RME Digiface USB is a compact, bus-powered USB 2.0 digital audio interface designed to expand a computer-based recording or playback system through optical ADAT and S/PDIF connections. It provides four optical inputs and four optical outputs, supporting up to 32 digital input channels and 32 digital output channels at single-speed ADAT rates, plus a stereo analog 6.3 mm TRS line/headphone output. RME’s TotalMix FX software provides flexible low-latency routing and submix monitoring, while SteadyClock/PLL clocking supports stable synchronization to external ADAT or S/PDIF sources. It has no analog recording inputs, microphone preamps, MIDI, word-clock, AES/EBU, Ethernet, or wireless/streaming functions. The product remains listed by RME with current firmware and a February 2026 manual, so it is treated as currently manufactured.
Specifications
Digital Audio
DAC capabilities and digital audio processing
- Bit Depth
- 24-bit
- Max Sample Rate
- 192 kHz
- MQA Support
- No
Analog Output
Analog signal output specifications
- THD
- 0.100%
- SNR
- 110 dB
- Output Voltage
- 9.5V RMS
- Output Impedance
- 2Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Digital Inputs
- Optical Toslink
- Digital Outputs
- Optical Toslink
- Analog Outputs
- 6.3 mm TRS
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions