RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
A$130 is fair to slightly good for this receiver if it’s complete and working cleanly; it’s not a steal, but it’s comfortably in the buy zone for a solid vintage Sony integrated receiver.
The STR-D911 is one of Sony’s better late-’80s/early-’90s mainstream units: good power on tap, a straightforward layout, and the kind of warm, easy listen that makes it attractive for a second system or a simple stereo setup. At this price, the real upside is getting a respected, full-size receiver without paying collector money. I’d want to confirm all inputs work, the volume and selector controls are quiet, and the remote or any original paperwork is included if the seller has it.
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.
