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A strong bargain at USD 29, well below the USD 63 25th-percentile mark and far under the USD 115 median for 2,991 comparable listings. Even allowing for the missing wireless module, the asking price leaves plenty of room for a worthwhile project or parts purchase.
This is a useful little S-AIR surround amplifier for compatible Sony home-theater systems, delivering substantial power for passive rear speakers in a compact chassis. The catch is functional rather than cosmetic: it needs the correct EZW-RT10/RT10A or compatible transceiver card to receive audio wirelessly, and the matching Sony main unit must support the same system. Confirm the voltage version, test that it powers up, and price in the module before building a complete setup; at USD 29, though, it remains an easy recommendation if compatibility checks out.
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.
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