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Why this one
Like New condition - no marks, wear, or functional issues
Fully tested - all applicable functions verified working
Dual AKM AK4497SVQ DACs with up to 3000mW balanced output per channel.
Complete with original box and manuals, ready for a desktop headphone setup.
Condition: Like New
This Hi-Fi amplifier is in like new condition. It has passed our 8-point functional test, with 1 item(s) not applicable to this unit. Note: The product is in Like New condition, supplied in its original box, and has never been used. Please review all photos carefully, as they provide an accurate representation of the cosmetic condition of the product.
What's included
Fiio K15 (Black)
Original Box
Manuals
About this model
The FiiO K15 is a desktop DAC and headphone amplifier built around dual AKM AK4497SVQ DAC chips and a discrete Class AB amplifier stage. It delivers up to 3000mW + 3000mW at 32Ω from the 4.4mm balanced output and up to 1400mW + 1400mW at 32Ω from the 6.35mm single-ended output. Headphone outputs also include a 4-pin XLR balanced connection, while inputs span USB-C, optical, coaxial, Gigabit Ethernet, Wi-Fi, Bluetooth 5.1, RCA and 4.4mm balanced line in. A 3.93-inch touchscreen, 10-band parametric EQ, and Roon Ready and AirPlay 2 support round out its streaming and tuning features.
A great opportunity to own a Fiio K15 at this price point.
Are you looking for a feature-rich desktop DAC/amp at a sensible used price? At US$606, this K15 is essentially fair: it sits just above the recent comparable median of US$598 and only slightly above the US$602 75th percentile. That makes it no bargain, but hardly an ambitious ask if the unit is complete and working properly.
The appeal is considerable. The K15 combines a powerful discrete amplifier, balanced output rated up to 3,000 mW per channel, broad digital connectivity, streaming, Bluetooth, and useful preamp functionality. It should handle demanding full-size headphones while remaining suitable for sensitive IEMs, making it a versatile one-box system. At this price, prioritize a clean display, responsive controls, stable firmware, remote, and original power/accessory package; with those present, US$606 is a reasonable buy rather than a price to haggle aggressively.
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.
