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This is a strong deal at US$24. The listing sits well below the comparable-market median of US$116 and beneath the 25th percentile of US$64, making it an excellent low-cost entry into Sony’s S-AIR wireless surround system. Comparable examples commonly land around US$20–US$43, so the ask is right at the bargain end.
The TA-SA100WR is a compact two-channel wireless rear-surround amplifier, useful for restoring or expanding compatible Sony home-theater systems without running speaker cable across the room. The included EZW-RT10A transceiver card is especially worthwhile, since the amplifier needs the card to communicate wirelessly. At this price, it is a compelling buy if the seller confirms it powers up, links reliably, and includes the correct card; compatibility with the intended Sony main unit is the main thing to verify.
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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