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NOS Matsushita GZ34 Valves/Tubes I'm after 2 Matsushita GZ34 retifiers to try with my Supratek preamp. I'm not looking to pay huge dollars for them but will pay the market price. I am currently using the JJ GZ34 but thought I'd try something different. I would look at other readonably prices NOS valves too. Also, has anyone tried any of the current production Chinese GZ34? Are they any good? PM with details of what you want to sell and the price. Herby Condition: NOS Payment Method: Region/State: (VIC) Victoria/Australia By Herbyj 1 Comments AUD $50 Date: November 30, 20241 yr
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Supratek is a Western Australian valve specialist founded by Michael Maloney, who brings more than 30 years of audio design experience to the company. After eight years of limited custom manufacturing, Supratek returned to full-time production with a dedicated facility and listening room in Margaret River, establishing itself as a serious player in high-end tube electronics. The brand's longevity and commitment to hand-built, point-to-point wired construction reflect a philosophy rooted in analog craftsmanship and meticulous attention to detail.
The company specializes exclusively in valve-based preamplifiers, with the Cortese serving as its flagship model. The Cortese features a 6SN7 triode tube design paired with a separate power supply and represents Supratek's commitment to cutting-edge tube topology. Notably, Supratek developed a world-first LCR phono stage compatible with moving-coil cartridges, delivering 80dB of gain—a technical achievement that underscores the brand's innovation within the tube preamp category. The company has also pioneered commercial DHT preamplifier designs, establishing itself as a technical innovator rather than a follower.
Supratek occupies the high-end boutique segment, positioning itself for discerning audiophiles willing to invest in bespoke, limited-production equipment. The brand's transferable lifetime warranty reflects confidence in its engineering and manufacturing standards. With hand-built construction, proprietary tube designs, and a track record of technical firsts, Supratek appeals to analog enthusiasts and collectors who prioritize sonic refinement and build quality over mass-market accessibility. Its Australian provenance and small-scale production model reinforce its status as a niche, artisanal manufacturer rather than a mainstream audio brand.
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