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Commercial Stax SRS-005 Electrostatic Headphones & Amplifier Package Discover the Pre-Owned Stax SRS-005 Electrostatic System at Len Wallis Audio. Experience electrostatic clarity in a unique in-ear design. Key Features SR-003 Earspeakers: Push-pull electrostatic in-ear design with 15% lighter diaphragm for transparent sound. SRM-212 Driver Unit: Solid-state Class-A amplifier with 0.01% harmonic distortion for pristine audio. Portable Design: Lightweight 28g earspeakers and compact 500g driver unit for versatile use. Customizable Fit: Includes one silicone earbud size for comfort and sound o
This is a buyer’s market for Stax amplifiers right now, and the A$500 asking price for the SRM-1 is fair, sitting just above the median of A$434 from your ground-truth comparable listings. It does not exceed the 75th percentile of A$459, so it is not ambitious—rather, it reflects honest market value for a used unit in AUD condition. While some external sources cite similar SRM-1 mk2 models around A$400–A$450, the A$500 price remains reasonable given typical used demand and the model’s reputation.
The SRM-1 is well-loved for its clean JFET differential design and high output capability, delivering pristine amplification for electrostatic headphones with minimal distortion. Its original-owner condition, if confirmed, adds significant upside, and the rarity of these limited-production units in the current market makes this a compelling buying opportunity. With no material failure points specific to this model at fair price, and assuming accessories are included, this listing offers solid value for a fellow enthusiast seeking a reliable, vintage Stax preamp.
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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