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Tested and Working. This item was pulled from a working environment. Please look at all photos before purchasing, only what is included in the pictures is included in the sale. Will ship same day purchased in a professionally packaged box. (L)S175R
For a vintage Sony power amp, timing matters mainly because condition and maintenance count more than release-era hype, and at US$153 this sits essentially right on the going used market for this model. With recent comps centered at US$151 and a tight US$150–US$152 spread, this is a fair ask rather than a bargain or an overreach.
That makes it a sensible buy if it’s clean, fully functional, and hasn’t been abused. Sony’s older stereo power amps are often valued for straightforward, unfussy drive and dependable everyday use, so the upside here is a solid “set it and enjoy it” piece without paying a premium. At this price, the key checks are noise, channel balance, relay behavior, and whether any servicing has been done; if those are good, it’s a respectable pickup.
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.
