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This is a DDC. Not a DAC. So USB to digital. Extremely low jitter. Excellent condition. So you want to come out from USB to AES/EBU, Toslink, Spdif, etc...Am the original owner and comes with original power supply, no original box.Ships to lower 48 only no internationalThey currently sell new for $750, even has a clock out!So for example you can record straight from your computer to a Tascam DA 3000 via digital...
US$500 is a bit ambitious versus your recent comp set: it sits above the 75th percentile at US$480 and is about US$40 over the median of US$460. It’s not outrageously priced, but it isn’t a bargain either, so I’d treat it as a buy only if the condition and included accessories justify the premium.
The SU-6 is still a respected digital transport for clean, low-jitter USB-to-I2S/coax/AES duties, and buyers like it for its flexibility and solid implementation rather than any flashy extras. If this one is complete and genuinely well kept, the upside is a strong, no-nonsense centerpiece for a serious DAC setup; at US$500, though, I’d want original packaging, the right cables, and a clean history to make the premium feel earned.
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.
