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Condition is unknown, but at US$225 this looks like a strong buy versus the recent used market: well below the US$368 25th percentile and far under the US$414 median, so there’s real value here if it’s clean and working properly. That pricing leaves room for a quick flip, a near-risk-free audition, or a keeper-level desktop upgrade.
The K13 R2R is well regarded because it gives a fuller, more textured take on digital playback than many sterile budget DAC/amps, while still being a practical all-in-one for headphones and line-out use. If the original packaging, power supply, and remote are included, that only strengthens the deal; the main thing to confirm is normal operation, since any display, input, or output issue would matter more than usual on a unit priced this attractively.
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.
