Matrix Audio X-SPDIF 3 Digital Audio Interface

For the discerning audiophile, the path to pristine digital audio is often fraught with compromise. The Matrix Audio X-SPDIF 3 is the definitive solution, a high-performance USB digital audio interface designed to bridge your computer, tablet, or mobile phone to your high-end DAC with uncompromising purity. By meticulously re-clocking and isolating the digital signal, the X-SPDIF 3 eliminates the jitter and noise that can degrade your listening experience, delivering a clean, precise, and incredibly detailed digital audio stream. It’s the missing link in your digital audio chain, ensuring that your DAC receives the purest possible signal for a truly transparent and immersive sound.

Key Features:

• High-Resolution Audio Support: Supports up to 32-bit/768kHz PCM and DSD512, allowing you to experience your high-resolution music collection in its native format.
• Femtosecond Clock Accuracy: Dual Accusilicon femtosecond clocks provide an ultra-low jitter reference for the digital audio signal, resulting in a more accurate and natural sound.
• IIS-LVDS Output Isolation: A key upgrade, the IIS-LVDS output is now isolated to eliminate ground noise from the USB source, ensuring a blacker background and improved clarity.
• Versatile Digital Outputs: With Optical, Coaxial, AES, and IIS-LVDS outputs, the X-SPDIF 3 offers broad compatibility with a wide range of digital audio devices.
• Configurable IIS-LVDS Interface: The IIS-LVDS output can be configured to four different interface definitions and two clock output modes, ensuring a perfect match with your DAC.
• DoP to Native DSD Conversion: Can convert DSD DoP signals to Native DSD for output via the IIS-LVDS port, unlocking the full potential of your DSD collection.
• Flexible Power Options: Can be powered via the USB bus or an external power supply, allowing you to choose the best option for your system.

Precision Timing with Dual Femtosecond Clocks

At the heart of any high-fidelity digital component is the quality of its master clock. The X-SPDIF 3 employs two Accusilicon femtosecond clocks as its reference clock source, one for the 44.1kHz family of sample rates and one for the 48kHz family. This ensures that every digital signal, regardless of its original sample rate, is re-clocked with extreme precision. By minimizing jitter—tiny timing errors that can smear musical detail and collapse the soundstage—the X-SPDIF 3 delivers a digital signal that is stable and accurate, allowing your DAC to perform at its absolute best and render music with startling realism and clarity.

Isolated IIS-LVDS for Ultimate Purity

While USB is a convenient connection, it can also introduce unwanted electrical noise from the source component's power supply. The X-SPDIF 3 tackles this head-on with an isolated IIS-LVDS output. This advanced feature creates a galvanic break in the ground connection between the X-SPDIF 3 and your DAC, effectively preventing any ground loop noise from contaminating the sensitive audio signal. The result is a dead-silent background, allowing the subtlest musical details to emerge from a black canvas, enhancing resolution and dynamic range.

Unmatched Flexibility and Compatibility

The X-SPDIF 3 is engineered to be a universal translator for your digital audio world. In addition to standard Optical, Coaxial, and AES outputs, it features a highly configurable IIS-LVDS (HDMI) output, which is widely regarded as the highest-quality connection for digital audio. With switches conveniently located on the base of the unit, you can easily configure the IIS-LVDS pinout to match the specific requirements of your DAC, ensuring seamless integration and optimal performance. This level of adaptability makes the X-SPDIF 3 a future-proof investment for any evolving audio system.

Robust Engineering for Peak Performance

Every element of the X-SPDIF 3's design is chosen to support its sonic mission. The chassis is precision-milled from a solid block of aluminum, creating a rigid, non-resonant enclosure that shields the sensitive internal components from external electromagnetic interference and mechanical vibration. Furthermore, the device offers dual power supply options: the convenience of USB bus power or the ability to connect a higher-quality external 12V linear power supply. This flexibility allows you to optimize the power delivery for your specific setup, ensuring the internal circuitry is always supplied with clean, stable power for the most consistent and reliable performance.

The Listening Room Difference

We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Specifications