Why it stands out
Best for
Not ideal for
Why buy from EMiUZEK
We help you choose, connect and maintain your system—not just ship a box.
- ✓Authentic products
- ✓Compatibility guidance
- ✓Fast tracked shipping
- ✓Firmware and driver support
- ✓Clear warranty process
- ✓Responsive after-sales help
How to connect
EMiUZEK buying notes
Frequently asked questions+
View full technical specifications+
Official product information provided by Gustard+
The following product descriptions, specifications and images are provided by the manufacturer.
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
| Architecture | 27-bit fully discrete R2R ladder |
| Clock | Built-in OCXO oven-controlled crystal oscillator |
| PCM | Up to 1536kHz (I²S) / 768kHz (USB), 16-32bit |
| DSD | Up to DSD1024 (I²S) / DSD512 (USB), native & DoP |
| Digital Inputs | USB-B, I²S (HDMI), AES/EBU, Coaxial, Optical, LAN (RJ45) |
| Analog Outputs | Balanced XLR (5.1Vrms), Single-ended RCA (2.5Vrms) |
| Dynamic Range | >123dB |
| SNR | >121dB |
| THD+N | ≤0.00145% @ 1kHz |
| Frequency Response | 20Hz-20kHz / ±0.2dB |
| Streaming | Roon Ready, AirPlay, DLNA, UPnP |
| Power | AC 115V/230V 50/60Hz, <35W |
| Dimensions | W430 × D300 × H80mm (including feet) |
| Weight | 10kg (packaged) |
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.
What's in the box, manuals and downloads+
Shipping, warranty and returns+
Origem e custos do envio
Os pedidos são enviados de Suzhou, China continental.
O frete e os tributos cobrados no checkout são exibidos antes do pagamento. Consulte os destinos atendidos, os valores por peso e as cobranças de importação na Política de Frete e Tributos.
Garantia comercial da EMiUZEK
A EMiUZEK oferece uma garantia comercial: DACs, amplificadores, IEMs e dongles: 1 ano; cabos e adaptadores: 3 meses. A garantia é prestada por Yangzhong Jindun Digital Technology Co., Ltd. As garantias dos fabricantes, quando disponíveis, são separadas e seguem as condições da respectiva marca. Esta garantia comercial não limita os direitos e as medidas de proteção obrigatórios previstos em lei.
Devoluções
Solicite a devolução de um produto elegível em até 30 dias após o recebimento. Produtos sem defeito podem estar sem uso ou abertos, desde que em estado de novo. Entre em contato antes de enviar a devolução. Consulte condições, exceções e custos na Política de Devolução.



