RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
US$375 looks fair-to-slightly firm, but still within the normal used market for this amp. Against your anchor set, it sits above the US$310 median and well below the US$519 75th percentile, so this is not an outlier price.
The draw here is classic ES-series build: substantial power, good current delivery, and the sort of smooth, controlled presentation that made Sony’s better amplifiers popular with real-world speakers. If it’s clean, unmodified, and functioning quietly, it’s a sensible buy at this level. At this age, just confirm it powers up cleanly, runs cool, and has no crackles, relay delay, or channel imbalance.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sony emerged from the ruins of post-World War II Japan, founded on May 7, 1946, by Masaru Ibuka and Akio Morita as Tokyo Tsushin Kogyo K.K. in Tokyo's Nihonbashi district. Starting with radio repairs and Japan's first magnetic tape recorder, the duo secured transistor licensing from Bell Labs, pioneering the TR-55 transistor radio in 1955. Renamed Sony Corporation in 1958—from the Latin "sonus" for sound—the brand symbolized Japan's ascent from cheap imitations to innovative leadership, fueled by Ibuka's engineering prowess and Morita's global marketing vision.
Sony's hi-fi legacy spans headphones, amplifiers, speakers, turntables, and DACs, alongside landmark formats like the Compact Disc in 1982 and Blu-ray. Iconic products include the Walkman for portable audio revolution and Trinitron televisions, blending consumer accessibility with cutting-edge tech. Today, offerings like the Signature Series headphones and ES amplifiers target discerning listeners seeking refined soundstaging and dynamic range.
Positioned as a mid-to-high-end powerhouse, Sony commands respect among knowledgeable buyers for blending mass-market reliability with premium performance, outpacing many pure audiophile brands in innovation and value. Far from vintage relic or niche boutique, it dominates with forward-thinking engineering, holding strong market share in headphones and streaming ecosystems.
See all Sony listings on RADAR.
eBay Australia
AU
eBay US
Reverb
eBay Australia
AU
Reverb
↓ 6%
eBay UK
GB
