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£135 is very close to the £131 median for recent comparable GBP listings, so this reads as a fair buy rather than a bargain or an overreach. It sits comfortably inside the normal used-market band, especially versus the £42 to £656 spread, so the price looks sensible for a working example.
What makes it attractive is straightforward utility: this is the sort of high-power line amplifier people buy for dependable background-music, multiroom, or venue use, and Bluetooth plus USB add everyday convenience. If the unit is clean and fully functioning, the value is in getting a practical, ready-to-run amp without paying new-retail money; just make sure the controls, inputs, and output stage all behave properly, since a used commercial amp is only a good buy if it’s genuinely healthy.
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.
