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For sale is a single Stax DA-100M monoblock Class A Power Amplifier. A legendary reference Class A monster from the early 1980s. These cost as much as a small car when they were released, the build quality is awesome!Unfortunately I only have the one. Replace a dead channel, add a centre channel ...
A$1,250 looks like a strong deal against your local comparables: it sits below the A$1,288 25th percentile and well under the A$1,325 median, so this is priced on the friendly side of the market. For a Stax DA-100M, that’s the kind of level that makes a fast decision worth considering rather than waiting for a better number.
The appeal here is the usual Stax one: serious build, niche collector interest, and a reputation for clean, authoritative drive in a compact monoblock format. If the unit is genuinely healthy and comes from careful ownership, the value upside is solid; at this price, I’d mainly want confirmation of proper operation, no channel imbalance or protection issues, and whether anything original is included.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
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.
See all Stax listings on RADAR.
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