RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
For a late-ES-era Sony power amp, timing matters mostly because the good ones are now vintage pieces, and this one lands at a sensible US$300 against a recent market median of US$345 and a 25th percentile of US$250. That puts it in the fair-to-good zone, a bit below the center of the market without being a steal.
What makes it worthwhile is the usual ES appeal: solid build, honest power, and the kind of clean, controlled presentation that still pairs well with efficient speakers and a straightforward system. At this price, a tidy, fully working example with no noise, no channel imbalance, and intact cosmetics is a good buy; if it includes the original box, manual, or proof of recent service, that only improves the value.
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.
