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This is a buyer’s market: at £42, this is a genuine bargain against the recent used market, sitting well below the £63 25th-percentile figure and far under the £177 median. Even allowing for the missing accessories, the price leaves plenty of room for value.
The KA13 is a particularly capable little DAC/amp, combining dual CS43131 DACs with 3.5mm and 4.4mm outputs; its balanced output can deliver up to 550mW into 32 ohms, giving it unusually strong drive for a dongle-sized unit. The main thing to check is exactly what is absent: replacement USB-C, USB-A, or Lightning cables are manageable, but confirm the DAC powers up, both outputs work, and the connector is sound. If those basics check out, this is an easy recommendation.
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.
