RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
£50 looks like a solid buy, probably a touch under fair market for this model rather than merely acceptable. Recent used listings for the SM-31 cluster around about £30-£45 for ordinary examples, with more polished or bundled setups going higher, so £50 sits near the top of the normal band but not into overcooked territory.
It’s a nicely regarded vintage integrated from Sharp’s late-70s/early-80s hi-fi era: compact, straightforward, and usually valued for clean, unfussy sound and decent build rather than sheer muscle. At this level the main upside is simply getting a working, original example without having to hunt long; just confirm it powers up quietly, all inputs work, and the knobs/switches aren’t scratchy, since age-related contact issues are the usual concern.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sharp is a Japanese electronics company founded in 1912 by Tokuji Hayakawa, who began with a small metalworking workshop in Tokyo. The company’s name comes from its early “Ever-Ready Sharp” mechanical pencil, and its broader corporate identity grew out of a long history of practical consumer innovation rather than specialist audio alone.
In audio, Sharp has been associated mainly with mainstream consumer hi-fi and AV rather than ultra-audiophile hardware. Over the decades it has produced items such as radios, televisions, receivers, and other home-electronics components; in the modern era its audio presence is tied more to compact systems and mass-market electronics than to a deep catalog of standalone amplifiers, DACs, turntables, or headphones.
In market terms, Sharp is best understood as a heritage Japanese consumer brand with periodic involvement in audio, not a dedicated high-end hi-fi marque. For knowledgeable buyers, that means the brand carries historical legitimacy and recognition, but its reputation is closer to reliable mid-market electronics than boutique or reference-grade specialist audio.
See all Sharp listings on RADAR.
