Singxer
Singxer SU-1 USB Digital Interface
Best digital interface for audiophiles seeking pristine, interference-free signal conversion.
The Singxer SU-2 is a high-performance USB digital audio interface designed for exceptional audio fidelity. It leverages a new architecture with an ARM Cortex-M4 core and large FPGA, supporting up to PCM 768K and DSD1024 sampling rates. The SU-2 excels in isolating your audio from PC interference and features a self-developed clock system with ACCUSILICON crystals for ultra-low jitter. It also functions as a versatile independent master clock, offering various clock signal outputs and flexible I2S connectivity via an HDMI socket.
$499.00
Owner Satisfaction
4.7
/ 5
Category Rank
99
/ 489
#99 in Audio Converters
Price vs Category Average
-89%
Below average
PCM Sampling Rates
7682
/ Up to KHz (IS)
Who it's for
- Listeners prioritizing precise timing and low phase noise
- Audiophiles seeking maximum signal clarity and reduced jitter
- System builders connecting diverse high-end digital components
Who should skip it
- Budget-conscious listeners avoiding expensive signal conversion upgrades
- Users without custom cabling for proprietary I2S connections
- Minimalists wanting to avoid extra power supply clutter
Performance breakdown
Jitter suppression
Femtosecond clocking virtually eliminates timing errors for pristine digital signal integrity.
Format versatility
Handles extreme sampling rates up to DSD1024 with effortless technical precision.
Signal isolation
Advanced architecture effectively scrubs noisy PC interference from your audio chain.
Clock flexibility
Functions as a robust master clock for complex high-end audio setups.
Build integrity
Solid aluminum housing provides excellent shielding and a premium desktop presence.
Connectivity options
HDMI-based I2S output offers superior bandwidth for demanding audiophile DACs.
Key Specs
PCM Sampling Rates
Up to 768KHz (I2S)
DSD Sampling Rates
Up to DSD1024 (I2S)
Bit Width
Up to 32 bits over I2S output
Dimensions
234MM x 170MM x 46MM
Weight
1.8KG (Stand-alone)
Power Input
115V / 230V AC
RCA Output Impedance
75 ohms
Compatibility
Windows, MacOS (native), Linux, Android
Features
- Supports high-resolution audio up to DSD1024
- Ultra-low jitter with femto second clock
- Blocks PC interference with full isolation
- Functions as an independent master clock
- Flexible I2S output via HDMI
- Accepts external 10MHz clock input
- Powered by ARM Cortex-M4 processor
- Multiple independent LDO power supplies
What customers say
The Singxer SU-1 interface earns high praise for delivering exceptional sound quality, establishing it as a top performer in its class. Users consistently report significant improvements, noting enhanced clarity and a deeper soundstage after integration. The core strength lies in its robust clocking and galvanic isolation, which effectively cleans the digital signal. Reviewers frequently cite the I2S output as the best path for maximizing DAC compatibility and performance. While initial Windows driver setup can present minor friction, the resulting audio gains are widely considered to far outweigh this small hurdle. Overall, the SU-1 offers performance typically found in much costlier units, making it an outstanding value for serious audio upgrades.
Know before you buy
The SU-2 acts as a high-performance bridge between your computer and your DAC. It cleans up the digital signal from your PC, isolates electrical noise, and converts the USB signal into high-fidelity formats like I2S, Coaxial, or XLR for your audio equipment.
Yes. While the I2S output via HDMI offers the highest performance and supports the maximum sampling rates, the SU-2 also provides XLR and Coaxial outputs that are compatible with most standard DACs.
The device is compatible with Windows, MacOS, Linux, and Android. While MacOS and Linux typically support it natively, you will need to install the specific Singxer USB driver on Windows to ensure full functionality and high-resolution support.
The 10MHz clock input allows you to bypass the internal clock and sync the SU-2 with a high-end external master clock. This is an advanced feature for audiophiles looking to further reduce jitter and improve the precision of their digital signal chain.
Yes, the SU-2 is designed with full electrical isolation between the USB input and the digital output stages. This architecture is specifically engineered to block the high-frequency interference and ground noise commonly generated by computer power supplies.
While the SU-2 uses an HDMI-style connector for I2S, it is not a standard video signal. You should use a high-quality HDMI cable, but be aware that I2S pinout configurations can vary between different manufacturers, so you may need to verify compatibility with your specific DAC.
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$499