The Matrix Audio X-SPDIF3 USB Digital Audio Interface is a high-performance solution for converting USB audio from computers, tablets, and mobile devices into pristine digital outputs for external DACs. Operating in asynchronous USB mode, it converts USB audio to Optical, Coaxial, AES/EBU, and IIS-LVDS outputs, delivering superior signal integrity and reduced jitter. Compared to previous generations, the X-SPDIF3 adds IIS-LVDS output isolation, fully separating the digital output from USB ground noise to eliminate interference commonly associated with USB audio sources. Supporting up to 32-bit/768kHz PCM and DSD512, it ensures exceptional compatibility with modern high-resolution audio systems. Two Accusilicon femtosecond clocks provide ultra-low jitter timing for both 44.1kHz and 48kHz sampling families, while FPGA-based clock management and independent low-noise power regulation preserve signal accuracy. The X-SPDIF3 also supports DoP to Native DSD conversion, configurable IIS-LVDS pin definitions, and dual clock output modes for broad DAC compatibility. Additional features include USB bus or external power support and a CNC-machined aluminum chassis for superior shielding, making the X-SPDIF3 an ideal USB digital audio interface for high-end PC and mobile hi-fi systems.
DISCONTINUED
Matrix Audio X-SPDIF3 USB Digital Audio Interface (Black)
Unfortunately, this product has been discontinued. Please contact us at 1.844.GRAMOPHONE for further
assistance
Free standard shipping on all orders within the continental US.
check the code for any error
Dedicated Support from Start to Finish
Concierge-Level Experience tailored to your needs
Assistance with Troubleshooting and Product Insights
Expert help for Product Set-Up
Free Shipping on all orders
DESCRIPTION
The Matrix Audio X-SPDIF3 USB Digital Audio Interface is a high-performance solution for converting USB audio from computers, tablets, and mobile devices into pristine digital outputs for external DACs. Operating in asynchronous USB mode, it converts USB audio to Optical, Coaxial, AES/EBU, and IIS-LVDS outputs, delivering superior signal integrity and reduced jitter. Compared to previous generations, the X-SPDIF3 adds IIS-LVDS output isolation, fully separating the digital output from USB ground noise to eliminate interference commonly associated with USB audio sources. Supporting up to 32-bit/768kHz PCM and DSD512, it ensures exceptional compatibility with modern high-resolution audio systems. Two Accusilicon femtosecond clocks provide ultra-low jitter timing for both 44.1kHz and 48kHz sampling families, while FPGA-based clock management and independent low-noise power regulation preserve signal accuracy. The X-SPDIF3 also supports DoP to Native DSD conversion, configurable IIS-LVDS pin definitions, and dual clock output modes for broad DAC compatibility. Additional features include USB bus or external power support and a CNC-machined aluminum chassis for superior shielding, making the X-SPDIF3 an ideal USB digital audio interface for high-end PC and mobile hi-fi systems.
FEATURES
Filter the noise of digital audio signal: X-SPDIF3 converts audio data to S/PDIF or IIS-LVDS signals from USB connection, which can be called a "problem eliminator" for digital signals. When your computer, mobile phone, or tablet does not have a coaxial or optical fiber interface, you can use the X-SPDIF3 for interface conversion, to let your existing mobile devices output high-quality digital audio signals to the DACs, During this process, the audio signal will be optimized and reformed, and the "impurity" from the front-end device will be isolated, providing perfect and pure digital audio signal to the back-end equipment, effectively improving the sound quality.
Femtosecond Clock: With 2 femtosecond clocks from Accusilicon as the reference clock source to accurately restore the nature of music. Working for 44.1kHz and 48kHz and their multiples of sampling rate respectively, the FPGA automatically performs frequency division and switching control, it is powered by an independent ultra-low noise LDO. The clean power supply allows you to enjoy music without worries.
IIS-LVDS Definition: The X-SPDIF3 can be configured to 4 kinds of IIS-LVDS interface definitions by toggling the switch on the bottom of the unit, to match various back-end devices. Enables the X-SPDIF3 has a wider range of applications.
Dual Clock Mode: With the switches on the button of the unit, the X-SPDIF3 can be configured to 2 different clock output modes, to match different back-end devices. Simply toggle the switches, the fun of Hi-Fi is at your fingertips.
Convert Audio Codes Freely: The X-SPDIF3 is equipped with a DoP conversion function, which converts DSD DoP codes to Native DSD, and output through the IIS-LVDS port directly. Easily to achieve the code conversion of DSD, and provide a new solution for the DACs that only support native DSD capabilities.
External Power Supply: Both the bus power from USB connection and external power supply are available for X-SPDIF3, a dedicated LED indicates the power status. When connecting to devices with weak power supply capabilities such as mobile phones and tablets, you can add an external power supply to drive the X-SPDIF3 working stably. The USB bus power will be cut off when an external power supply is connected.
CNC Aluminum Chassis: In order to achieve a better electromagnetic shielding performance, reduce the effects of mechanical vibration, X-SPDIF3 follows the classic design of 「Matrix Audio」, using an aluminum CNC chassis, carefully crafting every corner, showing the charm of industrial aesthetics. Isolate the interference from peripheral devices, helping you to create a pure PC Hi-Fi audio system.
NOTE: Please see the X-SPDIF3 user manual for the IIS-LVDS definition.
System Support
Windows7/8/8.1/10/11 system needs to install the supplied driver.
Mac OS X10.6.4 or above without installing the driver.
Most Android devices can be used via OTG cable.
The iOS devices can be used via Lightning to USB Camera Kit.
Weight and size
Weight: 1 kg (2.2 pounds)
Width: 142 mm (5.59 inches)
Depth: 124 mm (4.88 inches)
Height: 38 mm (1.53 inches)
Power Specs
Power Supply Specs
USB bus power supply: 5V/500mA
External power supply: DC 12V, ≥400mA
Power supply plug: Outer diameter 5.5mm; inner diameter 2.1mm (+ for inner, - for outer)
NOTE: The input power supply should not be higher than 12V, otherwise the product could be damaged. The USB bus power supply will be disconnected when the external power supply is connected. An external power supply is required when using the product with low USB output current devices such as mobile phones or tablets.
