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SINGXER SU-6 DIGITAL TO DIGITAL CONVERTER - DDC. EXCEPTIONAL QUALITY WITH BUILT IN SUPER CAPACITOR PSU. MINT CONDITION WITH LITTLE USE. EXCELLENT I2S OUTPUT.
£420 is a fair price, sitting almost exactly on the recent £418 median and comfortably within the normal £391–£487 range.
The SU-6 remains a well-regarded USB digital-to-digital interface for systems where a DAC benefits from a cleaner or more flexible digital feed. It offers unusually comprehensive outputs—AES/EBU, BNC and RCA S/PDIF, optical, I²S, HDMI and clock connections—alongside high-resolution PCM and DSD support. In excellent condition, £420 is a sensible buy, particularly if you need AES, I²S or an external clock output; just confirm the correct power supply and included accessories, as replacements can be inconvenient.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Guangzhou Singxer Electronic Co., Ltd., founded in 2011 in the Panyu District of Guangzhou, China, emerged from a team of seasoned audio engineers focused on addressing shortcomings in digital audio playback. Initially specializing in OEM and ODM projects, the company leveraged its expertise in XMOS processors—pioneering the xCORE-200 series—to build a foundation in high-performance audio solutions. Without notable individual founders highlighted in public records, Singxer's heritage lies in its engineering-driven ethos, quietly supporting third-party brands for over a decade before expanding its own branded lineup.
Singxer concentrates on digital audio interfaces and headphone amplification, producing standout products like USB digital bridges (e.g., the SU-6 DDC), DACs, and fully balanced headphone amplifiers such as the SA-1. Their portfolio emphasizes precision components, including fully discrete differential designs with balanced/single-ended options, prioritizing low noise floors and exceptional measurements like THD+N below -120dB.
Positioned as a mid-tier contender in the competitive Chinese hi-fi market—alongside brands like Topping and SMSL—Singxer earns praise for delivering high-end performance at accessible prices, often under $600. While less mainstream outside Head-Fi circles, its products are lauded for reliability, robust engineering, and value, appealing to discerning headphone enthusiasts seeking measurable excellence without luxury premiums.
See all Singxer listings on RADAR.
