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Compared with a new dongle DAC/amp at roughly £65–£75, £30 is a strong used buy for this one; it sits well below the usual second-hand level, which looks more like £20–£30 equivalent in Japan and around £45–£55 for typical online used listings. That makes this asking price comfortably on the bargain side rather than merely fair.
It’s a worthwhile grab because the FC4 is still a genuinely capable portable DAC/amp: clean output, balanced 4.4 mm and 3.5 mm jacks, and enough drive to make easy-to-medium loads sound properly alive. The display version adds handy status info, which is useful on a daily-carry dongle. If it powers up cleanly and the cable/ports are intact, this is the sort of compact upgrade that punches above its price.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
HiBy is a Chinese audio brand established in the early 2000s by Fanoble Meng and Rick Wong, two software engineers who built their expertise at a prominent Chinese audio manufacturer before founding the company. With over 15 years of specialization in portable audio, HiBy has evolved from a niche player into a recognized name in the digital audio player market, recently expanding its organizational structure to include HiBy Music and HiBy Digital as distinct product lines.
The brand's product portfolio centers on portable high-fidelity solutions, including Android-based digital audio players, USB DACs, headphone amplifiers, and earphones. HiBy is particularly known for its DAPs, which typically feature premium DAC chips from Cirrus Logic and support high-resolution audio formats including DSD and PCM up to 32-bit/768kHz. The company has recently introduced desktop-oriented products under the HiBy Digital sub-brand, including all-in-one audio hubs and complementary accessories, signaling a strategic expansion beyond portable listening.
HiBy occupies the accessible-to-mid-tier segment of the hi-fi market, positioning itself as a value-conscious alternative to premium brands while maintaining technical credibility. The brand appeals to enthusiasts seeking bit-perfect, high-resolution playback without flagship pricing, and has cultivated a reputation for thoughtful engineering and user-driven innovation. Recent product launches demonstrate HiBy's commitment to diversifying its ecosystem while maintaining focus on digital audio quality and practical design.
See all Hiby listings on RADAR.
