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A$770 is a strong buy against your comps: it sits well below the A$1,000 25th percentile and far under the A$1,325 median, so this is priced like a bargain rather than a fair-market listing.

That makes it attractive for anyone wanting into Stax’s electrostatic ecosystem on a sensible budget; these driver units are the key piece that lets you run Stax earspeakers properly, and the D10 is generally respected for clean, fast, low-distortion drive. At this price, the main upside is straightforward value, especially if it’s complete and working cleanly. I’d just confirm the usual basics for older Stax gear: stable output on both channels, no crackle in the bias or volume controls, and the correct power lead/accessories if they matter to your setup.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Stax

Stax traces its origins to 1938 in Tokyo, Japan, when Naotake Hayashi founded Showa Kouon Co., Ltd. in Chiyoda-ku. Initially focused on wax disc recording, metal master production, and audio equipment for film soundtracks, the company evolved through the postwar era. In 1950, it launched its first high-frequency condenser microphone, adopted by NHK, and renamed itself STAX Co., Ltd. in 1963, honoring its pioneering Stax-1 mic. A brief suspension in 1995 due to economic pressures gave way to revival, preserving its legacy under family leadership.

The brand specializes in electrostatic headphones, known as "EARSPEAKERS," debuting with the world-first SR-1 in 1960. This innovation spawned enduring lines like the SR series, produced for decades with incremental refinements for superior resolution and staging. Stax complements these with dedicated electrostatic amplifiers and select accessories, eschewing conventional speakers, turntables, DACs, or cables to hone its transducer expertise.

Stax commands a niche high-end position among audiophiles and professionals, revered for unmatched transparency and fidelity that rivals cost-no-object loudspeakers. Its 85-year heritage cements it as a boutique icon in electrostatic technology, far from mass-market fare, appealing to discerning buyers seeking pinnacle sonic transduction.

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