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This is a buyer’s market for the category, and US$90 is a genuine bargain: it sits below the US$94 25th-percentile comparable and well under the US$105 median. Even allowing for the listing’s unknown condition, the price leaves useful room for a buyer rather than merely being “fair.”
The K11 is a particularly capable compact DAC/amp, offering USB, optical, and coaxial inputs, RCA line output, and both 6.35mm single-ended and 4.4mm balanced headphone outputs. Its clean, neutral presentation and strong balanced output—up to 1.4W at 32 ohms—make it suitable for most headphones, including demanding full-sized models. At this money, it is worth pursuing; just confirm that the external power supply is included and test both headphone outputs, the display, and the volume control before handing over cash.
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.
