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New pricing was around GBP 1,000 after converting the roughly USD 1,300 launch price, so GBP 720 is a meaningful saving rather than a giveaway. Against 22 comparable used listings, though, it is clearly ambitious: the median is GBP 315, with the 75th percentile at GBP 403. At this level, the seller needs to justify the premium with exceptional condition, complete packaging and accessories, or remaining warranty.
The SDA-6 Pro remains a serious DAC, with a well-executed balanced analogue stage, isolated USB implementation, strong clocking and a reputation for a clean, detailed yet musical presentation. It is particularly attractive if you need I2S and genuinely balanced outputs. For a normal used example, negotiation toward the GBP 400–500 region would make more sense; GBP 720 is only worth entertaining for a near-mint, complete, demonstrably fault-free unit.
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.
