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“Box opened” usually means near-new condition, but GBP 847 is ambitious against the supplied used-market figures: it is well above the GBP 347 75th percentile and roughly five times the GBP 177 median. Unless this is effectively new with full warranty and complete accessories, there should be room to negotiate substantially.
The K19 is a serious all-in-one: dual ES9039SPRO DACs, a powerful THX AAA 788+ balanced amplifier section, broad digital connectivity, preamp outputs and useful onboard parametric EQ. It has the power and flexibility to handle everything from sensitive IEMs to demanding headphones, while also serving as a capable desktop preamp. At this price, though, the appeal is mainly its flagship feature set rather than value; a buyer should confirm warranty status, remote, power lead, accessories and return protection before considering it.
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.
