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The age of this tweak matters: the Triphazer/Triphaser 7.0 appears to be an obscure vintage Line Magnetic accessory rather than a current, readily documented model, so replacement context and support are unclear. At USD 250, though, the price looks fair to slightly attractive against 176 comparable asking prices: the USD 173 median is lower, but USD 250 remains well below the USD 958 upper quartile and far from an ambitious ask.
Its appeal is the unusual two-channel line-level processing concept and the rarity of finding a complete pair, especially for enthusiasts experimenting with vintage-system voicing. The upside is strongest if both units are genuinely functional, quiet, and equipped with their original power supplies, cables, and controls. Because documentation is scarce, ask for clear photos of the rear panels, connectors, serial labels, and an in-system demonstration; without those details, USD 250 is reasonable rather than an unquestionable bargain.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Line Magnetic Audio: Brand Overview
Line Magnetic Audio was established in 2005 in Zhuhai, China, by brothers Zheng Cai and Zheng Xi, both passionate audiophiles with deep roots in tube electronics. Zheng Cai's background as a former general manager and chief engineer at Cayin, combined with years spent studying and restoring classic Western Electric, Altec, and Jensen components, provided the technical foundation for the company. This heritage of reverse-engineering and understanding legendary 1950s American audio design remains central to Line Magnetic's identity and philosophy.
The brand specializes in tube-based electronics and speakers, with a product range spanning integrated amplifiers, preamplifiers, power amplifiers, DACs, phonostages, and horn-loaded loudspeakers. Line Magnetic is particularly renowned for its meticulous replicas of classic Western Electric, Altec, and Jensen designs, as well as proprietary field-coil drivers that have earned respect among both manufacturers and DIY enthusiasts. All products are hand-assembled using point-to-point wiring across two factories, reflecting an uncompromising manufacturing philosophy.
Line Magnetic occupies the high-end boutique segment, targeting discerning collectors and audiophiles who value vintage-inspired design married with modern engineering. The brand commands respect for its scholarly approach to audio history, rigorous material research, and unrelenting build quality. Rather than pursuing mass-market appeal, Line Magnetic has cultivated a devoted global following among those seeking authentic tube sound and meticulous craftsmanship.
See all Line Magnetic Audio listings on RADAR.
