RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Should you grab it at £110, or wait for a sharper one? Based on your comps, this sits right at the 75th percentile and above the £93 median, so it’s not a bargain; it’s a touch ambitious for a used ask, but still within the upper end of the recent market rather than wildly overpriced.
That said, the K11 R2R is a well-liked little desktop DAC/amp for buyers who want a compact, clean, slightly more “musical” take than the usual budget delta-sigma box, with enough output to make a proper difference on headphones and easy system integration. If it’s genuinely tidy, from one careful owner, and includes the original PSU/cables, that helps justify paying near the top of the range.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Fiio, founded in 2007 in Guangzhou, China, emerged as a specialist in portable audio gear, initially crafting components like speakers for brands such as Meizu before launching its own lineup. The name blends "Fi" from hi-fi fidelity with "iO" symbolizing digital one's and zeros, evoking authentic sound and modern convenience, while its Chinese rendering "飞傲" conveys innovative vitality. From modest beginnings, the company expanded into a 15,000-square-meter industrial complex by 2022, solidifying its role as a prolific developer of music-centric electronics.
The brand excels across a broad spectrum of portable and desktop audio categories, with flagship strengths in high-resolution digital audio players (DAPs), USB DACs, portable headphone amplifiers, and in-ear monitors. Its portfolio also encompasses cables, desktop amps, and select speakers, prioritizing versatile, high-performance solutions for on-the-go and home listening without venturing into turntables or large-scale hi-fi systems.
Fiio occupies a commanding mid-tier position in the global audiophile market, renowned for delivering premium sound quality at accessible prices that punch above their weight. Praised by enthusiasts for reliability and value, it appeals to discerning buyers seeking refined portable setups over luxury excess, backed by worldwide distribution and a track record of user-acclaimed innovations.
See all Fiio listings on RADAR.
