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The Gustard R30 is a high-end network DAC built around a fully discrete R-2R ladder, designed for audiophiles who want to combine maximum precision with natural musicality. With support for PCM up to 1536 kHz and native DSD up to DSD1024 via I²S, the R30 delivers a resolution that matches the most demanding audio formats. Thanks to powerful FPGA-controlled signal processing, multiple filter modes and a true NOS mode, the user can shape the sound character according to taste and genre.
The analog output section is discretely built in class A and is complemented by a relay-based passive volume control, which means that the R30 can also function as a preamp with a clean signal path. The outputs are available as both balanced XLR and unbalanced RCA, with generously increased voltage levels for best matching with different amplifiers.
On the digital side, the R30 offers a wide range of connections, including USB, coaxial, optical, AES/EBU, dual adjustable I²S inputs, and a 10 MHz clock input for those who want to use an external master clock. There's also built-in network streaming via LAN with support for Roon, AirPlay, UPnP, NAA, and Spotify, allowing you to play music directly without external streamers.
The build quality is robust with a solid chassis, internal SC-cut OCXO crystal oscillator for ultra-low jitter and carefully separated power supply. The result is a sound that combines detail and dynamics with a natural warmth that characterizes R2R technology.
In other words, the Gustard R30 is a complete solution for those looking for a top-class DAC with integrated networking, flexible connectivity and a sound that is both analytical and musically engaging.
Gustard R30 in brief:
* Fully discrete R-2R DAC – natural and high-resolution reproduction without conventional DAC chips
* High-resolution audio support – PCM up to 1536 kHz, DSD up to DSD1024 (via I²S)
* Flexible signal processing – multiple filter modes and NOS mode for pure Non-Oversampling
* Powerful analog section – discrete Class A output section with relay-based passive volume control
* Wide connectivity support – USB, coaxial, optical, AES/EBU, dual I²S, LAN with network streaming
* Networking features – built-in support for Roon, AirPlay, UPnP, NAA and Spotify Connect
* External clock sync – 10 MHz clock input for use with master clock
* Balanced and unbalanced outputs – XLR and RCA with high output voltage
* Internal OCXO clock – ultra-low jitter for maximum precision
* Robust construction – solid metal chassis, high-quality power supply, approx. 10 kg weight
* Can be used as DAC or preamp – flexible solution in one device
"It held its own versus a pricier converter, and it was a substantial improvement over its predecessor.
Its resolving abilities are already on the same level as statement chip-based delta-sigma designs. The transients are going wild; the force is always strong in this one. Its tonality is on par with my own DAC. I’m counting the days when such units drop on my table, as it sounds like pouring Trappist ale down my throat, offering a fresh sound and a denser, fuller-bodied presentation compared to their past endeavors. It always delivered a powerful kick into my chest, and a spread-out soundstage with headphones and speakers alike.
Disregarding all of that mumbling, R30 is up there with some of the nicest units I extensively tested at my place, and that’s why it fully deserves our Highly Impressive award! Please note that there’s always a certain degree of subjectivity in HiFi reviews, including this one (even though I’m trying to remain neutral and close to the reader), so please don’t take my words for granted. If an opportunity arises, please give it a shot. You won’t regret it.
The Gustard R30, graciously provided by Apos Audio, is now available on their web store for $3,599, which includes shipping to your front door, an extra year of warranty, and proper support if things are going sideways. If you take the plunge and have some burning questions, feel free to drop me a line in the comments section below. That’s all for now, Sandu’s signing off!"
SoundNews.Net (Sept 2025) 
