RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
At £476, this is well above the used market anchor here: the median is £79, the 75th percentile is £137, and this listing sits far beyond even that top quartile, so it looks ambitious rather than value-led. If the goal is a sensible buy, the price needs a much stronger justification than the title alone.
That said, the K9 Pro ESS is a genuinely respected desktop DAC/amp: plenty of power, very low noise, and a clean, punchy presentation that suits most dynamic and planar headphones well. It also doubles as a preamp and is a tidy, future-proof all-in-one for a desktop rig. At this asking price, though, I’d want proof of excellent condition, original accessories, and a strong return policy before getting interested.
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.
