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At US$40, this sits well below the usual used range for the E3: the recent comp set puts the median at US$414 and the 25th percentile at US$368, so on price alone it looks like an obvious bargain. That said, the figure feels far enough below the pack that buyers should make sure the listing is truly for the tiny portable amp and not a miscategorizd bundle, accessory lot, or a damaged unit.
The E3 is a cult-budget starter amp: featherweight, battery-powered, and still appreciated for giving a simple lift in drive and a bit of bass shaping to older portables and basic players. If it’s clean, powers up properly, and includes the needed cable/battery setup, this is the kind of low-stakes, high-upside buy that’s easy to justify for a secondary rig or nostalgic grab.
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.
