The Gustard R30 is a flagship fully-discrete R2R network streaming DAC built around 27-bit resistor ladder architecture with an integrated OCXO oven-controlled crystal oscillator. It combines USB, I²S, coaxial, AES/EBU, optical and network streaming inputs with balanced XLR and single-ended RCA outputs for reference-grade digital-to-analog conversion.

Why it stands out

Fully Discrete 27-Bit R2R Architecture

Every signal-path component is an individual surface-mount resistor, capacitor and op-amp hand-selected by Gustard engineers — no integrated DAC chip. The 27-bit R2R ladder delivers natural, non-oversampling character with exceptional midrange purity.

Built-In OCXO Oven-Controlled Clock

An ultra-stable clock source maintained at constant temperature inside a sealed chamber reduces jitter below 5ps RMS across all sample rates, even during long playback sessions where ambient heat affects standard oscillators.

Native DSD1024 & PCM 1536kHz

Supports native DSD up to DSD1024 and PCM up to 1536kHz via I²S, with DSD512 and 768kHz over USB. Three selectable digital filter modes — Linear Sharp, Minimum Slow and Super Slow — let you tailor the presentation.

Network Streaming & Full Connectivity

Built-in network streamer supports Roon Ready, AirPlay, DLNA and UPnP. USB-B, I²S (HDMI), AES/EBU, coaxial and optical inputs cover every digital source, while balanced XLR (5.1Vrms) and RCA (2.5Vrms) outputs connect to any amplifier or preamp.

Best for

• High-end two-channel systems seeking reference R2R decoding
• Listeners who prefer natural, non-oversampling DAC character
• Network streaming setups with Roon, AirPlay or DLNA
• Systems with balanced XLR or single-ended RCA amplification

Not ideal for

• Budget-conscious buyers — this is a flagship-level investment
• Listeners who need built-in headphone amplification
• Systems requiring MQA decoding (not supported)

Specifications

FAQ

Q: Does the R30 have a built-in headphone amp?
A: No, the R30 is a pure DAC/preamp. Pair it with a dedicated headphone amplifier or integrated amplifier.

Q: Can I use an external word clock?
A: The R30 has a built-in OCXO clock. External clock input depends on specific configuration — refer to the user manual.

Q: Is Roon Ready included?
A: Yes, the R30 is Roon Ready certified for seamless network streaming.