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Supratek Mondeuse Mono Amplifiers Supratek Mondeuse Monoblocks. Purchased direct from Mick Maloney, this pair were part of his personal collection. They are hand made to custom order and are in excellent condition. I have upgraded the speaker terminals to USA made silver terminals. Tube component: 8 x EL34 PSVANE UK Matched Octet Note can use KT88. I prefer EL34 4 x GZ34 VIVO GOLD Matched Quad 2 X 6SN7 PSVANE UK Matched Pair 2 X 6H30 SOVTEC Matched Pair Overall condition is excellent. No base plates are included, as Mick didn't use them. Housed in beautiful solid Sheoak cabinets. Can supply
It’s a seller’s market for well-kept Supratek tube gear, and A$3,250 for a Mondeuse in excellent condition reads fair-to-good rather than cheap. These don’t come up constantly, and the asking price looks in line with what a nice, current-owner piece of this caliber usually commands in AUD.
The appeal here is obvious if you want a serious tube preamp with real pedigree: Supratek is well regarded for natural tone, scale, and that big, unforced presentation that pairs beautifully with revealing power amps and efficient speakers. Excellent condition matters a lot on these, and if it’s complete, quiet, and serviced as needed, this is the kind of buy that rewards long-term ownership more than constant trading.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
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.
See all Supratek listings on RADAR.
