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Stax SRM-700S Electrostatic Headphone Energiser For sale is the electrostatic energizer unit for Stax Headphones. Mainly used to pair with My Stax 009s . The sound is precision and clean, natural transparent and wide sound stage offering a reference-level listening experience. Reviews and specs below. I am also selling the SR009s headphone , please message me for a combined package price for two. Prefer to sell them together. https://www.audiokeyreviews.com/the-reviews/stax-srm-700s Specifications Type: All-stage FET configuration DC amplification driver unit Frequency response: DC
The Stax SRM-700S stands out for its pure, transparent electrostatic amplification, delivering that signature Stax precision without a hint of warmth or coloration—ideal for detail-obsessed listeners chasing ultimate clarity.
At AUD3,000 with unknown condition, this sits as a solid bargain below the typical used market range of AUD3,128–3,177, anchored in recent comparable AUD listings (median AUD3,177). Before biting, verify the output tubes' hours and condition, as they wear out and can introduce hum or distortion; also confirm all accessories like the power cable, RCA inputs, and any stock adapters are included, since omissions slash resale value. Test for channel balance and static noise on your panels to sidestep surprises.
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.
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