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Offered is „SPA - 4C“ by Concert Fidelity as second-hand device from the category „Phono Amplifier“ on audio-markt.de - the online market place for high-end. The advert with the number 9777150482 ends on 11.12.2026 at 11:20 o'clock.
This €5,750 asking price is ambitious, sitting far above the typical used market for this product where the median is €998 and the 75th percentile caps at €1,398. Even the top 25% of listings rarely exceed €1,400, making this ask roughly 4.1 times the median and over 4 times the 75th percentile; it is not a bargain or fair ask by any standard benchmark in our database.
That steep premium would only be justified if this is a rare, original-owner Fidelity Research SPA-4C in pristine condition with rare accessories or verified restoration, as the SPA-4C is a respected, high-current amplifier known for robust power and clean dynamics. However, without explicit proof of exceptional rarity or condition, the price reads as overvalued for a standard used unit, and buyers should expect significant negotiation room or look for listings closer to the €1,000–€1,400 range for better value.
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.
