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A matched pair of Full Music 300B/N tubes, purchased new and never used. They’ve been kept in audio storage, and now it’s time for them to find a new home where they can be appreciated.
A$300 is a fair-to-good price, sitting above the A$190 median but below the A$399 75th percentile for comparable listings. The catch is that the title does not make clear whether this is one valve or a matched pair, nor which exact 300B variant is included, so the price is hard to judge precisely.
These tubes have a strong reputation as musical, capable 300B options, with the Full Music mesh-plate versions particularly well regarded for an engaging, spacious presentation. Before buying, confirm the quantity, exact plate/bottle type, test results or emission readings, matching, and whether the original boxes are present. At A$300, a tested matched pair would look worthwhile; for a single untested tube, it is much less compelling.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Fidelity Research emerged from Tokyo in 1964, founded by Isamu Ikeda amid Japan's postwar audio boom. The company quickly established itself as a precision engineering powerhouse, focusing on analog playback components during the golden age of vinyl. Operating until around 1984, it embodied the meticulous craftsmanship that defined high-end Japanese hi-fi, with designs that prioritized sonic purity and mechanical innovation.
The brand specialized in moving-coil (MC) phono cartridges and tonearms, earning acclaim for models like the MC-202 cartridge and the iconic FR-64 and FR-66 series. These products featured advanced materials such as stainless steel and specialized alloys, delivering exceptional tracking, detail retrieval, and dynamics. While not venturing into amplifiers, speakers, or digital gear like DACs, Fidelity Research honed a narrow but masterful niche in turntable essentials.
Today, Fidelity Research holds vintage-collector status among discerning audiophiles, revered for its high-end analog prowess. Once priced at premiums like $495 for top tonearms, its gear commands cult following in the used market, prized for timeless transparency and build quality that rivals modern boutique offerings. For vinyl enthusiasts seeking uncompromised heritage, it remains a benchmark.
See all Fidelity Research listings on RADAR.
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