Singxer
Singxer SU1 with SOtM sCLK-EX Upgrade
Best digital interface for audiophiles seeking pristine, noise-free signal reproduction.
Experience superior digital audio with the Singxer SU1, enhanced by the SOtM sCLK-EX clock upgrade. This USB digital audio interface leverages the latest XMOS xCORE-200 series chip and CPLD/FPGA technology to regenerate and isolate audio signals, effectively eliminating PC noise. It supports high-resolution PCM up to 384KHz and native DSD512 via I2S output. Requiring an external 9V DC power supply, the SU1 delivers a deeply detailed soundstage with exceptionally delicate highs, making it an essential upgrade for audiophiles seeking pristine digital audio.
$899.00
Owner Satisfaction
4.7
/ 5
Category Rank
99
/ 489
#99 in Audio Converters
Price vs Category Average
-79%
Below average
PCM Sampling Rates
3842
/ Up to KHz (IS out)
Who it's for
- Audiophiles seeking absolute digital signal precision and timing accuracy
- Listeners demanding enhanced clarity and deeper soundstage performance
- System builders requiring flexible connectivity for high-end DAC integration
Who should skip it
- Owners prioritizing manufacturer support and long-term warranty protection
- Budget-conscious buyers exploring competitive alternatives in the DDC market
- Users lacking the technical expertise for complex internal hardware modifications
Performance breakdown
Jitter reduction
The SOtM clock upgrade virtually eliminates timing errors for pristine signal integrity.
Noise isolation
Advanced galvanic isolation effectively scrubs away harsh digital noise from your PC.
Format versatility
Native DSD512 and high-res PCM support handle virtually any audiophile file format.
Connectivity options
Comprehensive output suite ensures seamless integration with high-end DACs and systems.
Signal transparency
CPLD and FPGA processing deliver a remarkably clean and detailed soundstage.
Setup complexity
Requires external power and careful configuration for peak performance results.
Key Specs
PCM Sampling Rates
Up to 384KHz (I2S out)
DSD Sampling Rates
Up to DSD512 native (I2S out)
Bit Depth
Up to 32 bits over I2S output
Host Interface
USB 3.0
Connectors
Coaxial, BNC (Master Clock in/WCLK out), RCA, XLR (AES/EBU), HDMI (I2S out)
Power Requirement
External 9V DC power supply required
S/PDIF Output
Up to 192 KHz
Compatibility
Windows, Mac-OS, Linux, Android OS
Features
- Upgraded with SOtM sCLK-EX high-performance clock.
- Latest XMOS xCORE-200 series chip.
- High-speed isolation design eliminates PC noise.
- CPLD/FPGA regenerates digital audio signals.
- Supports native DSD512 via I2S output.
- Uniform source synchronous clock technology.
- Optimized firmware for peak performance.
- External 9V DC power supply required.
What customers say
The Singxer SU1 combined with the SOtM sCLK-EX upgrade is highly praised as a top digital to digital converter solution for serious listeners. Reviewers consistently note profound sonic improvements, primarily citing a significant reduction in digital harshness and jitter. This results in a noticeably blacker background, allowing musical details to emerge with startling clarity. Users report a dramatic expansion of the soundstage, offering superior depth and precise instrument placement that rivals much costlier transports. While the base SU1 is competent, the SOtM modification is viewed as essential for achieving absolute timing accuracy and enhancing musical flow. Despite the substantial cost premium for the clock upgrade, the consensus is that this combination delivers exceptional sonic purity and detail retrieval, justifying the investment for those seeking the pinnacle of USB interface performance.
Know before you buy
The SOtM sCLK-EX clock upgrade significantly improves timing precision compared to the stock version. This results in a lower noise floor, a more expansive soundstage, and increased clarity in the high-frequency range.
No, the Singxer SU1 requires an external 9V DC power supply, which must be purchased separately. Using a high-quality linear power supply is recommended to fully realize the performance benefits of the upgraded clock.
While the I2S output supports high-resolution audio up to DSD512, there is no universal industry standard for I2S pinouts. You must ensure your DAC's HDMI I2S input pin configuration is compatible with the Singxer SU1 before connecting.
The device utilizes a high-speed isolation design that physically separates the USB input from the audio output circuitry. This prevents electrical noise generated by your computer's motherboard from entering your audio signal path.
Yes, if you are using a Windows-based PC, you will need to install the appropriate XMOS USB drivers to ensure proper communication and support for high-resolution formats. Mac and Linux systems are generally plug-and-play for standard operation.
The Coaxial and XLR (AES/EBU) outputs support PCM audio up to 192KHz. To access the maximum 384KHz PCM or DSD512 capabilities, you must use the I2S output via the HDMI connector.
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$899