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DIY 6SL8 'Spud' amp Power Amplifier This amplifier is a dual 'Spud Amp' built according to Skunkie Designs protocol. It features two 6LU8 Compactron tubes. Sorry for the typo - I cannot change that The power transformer is a Hammond 370DX 550CT wired for 240 volts input. The two output transformers are Edcor 15W 5K SE UL and the choke is a Hammond 157Q The capacitors are all high quality and include two German Mundorf MCap EVO, Nichicons and Wurth. The resistors are mostly metal foil and all wiring is point-to-point with solid core copper. (No ‘cheesy’ parts!) The enclosure is a Hammond
This is a fair ask, leaning a touch cheap against your recent comp set: at A$850, it sits well above the A$201 median and above the A$1,933 75th percentile? Actually, on the numbers given, A$850 is above the median but still below the 75th percentile, so it reads as a normal-to-strong listing rather than ambitious.
The upside is the appeal of a DIY valve amp built around a classic small-signal tube topology: these can sound lively, open, and very engaging on efficient speakers, and a tidy, working build often has more character than a mass-market integrated. The main buyer check is practical, not philosophical: confirm it’s quiet, stable, and properly biased, and ask about the build quality, parts provenance, and whether any docs or service history come with it.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Mundorf traces its roots to 1985 in Cologne, Germany, where Raimund Mundorf launched the company with a passion for hi-fi sparked in his childhood. Initially focused on high-quality crossover components for enthusiasts, it evolved from his hands-on engineering amid the Rhine region's audio heritage. Over four decades, Mundorf has grown into a global benchmark, manufacturing at its headquarters with unwavering commitment to precision craftsmanship.
The brand specializes in premium passive audio components, renowned for capacitors like the MCap, Supreme, and EVO series, alongside inductors, air-core coils such as the MCoil, and high-end NF and speaker cables. These parts emphasize superior materials—OFC copper foil, resin-soaked paper, and advanced dielectrics—to unlock exceptional clarity and fidelity in crossovers, amplifiers, and loudspeakers. While not producing complete systems like amplifiers or speakers, Mundorf's elements integrate into the world's finest builds.
Positioned firmly in the high-end niche, Mundorf commands respect among audiophiles and OEMs for its "Inner Excellence," delivering components that prioritize sonic purity over mass production. Its reputation as the condenser specialist endures, with products like the zero-ohm coils and silver-gold hybrids setting references in discerning systems worldwide.
See all Mundorf listings on RADAR.
eBay UK
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Kleinanzeigen
Excellent
audio-markt.de
Good
audio-markt.de
Good
eBay UK
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Kleinanzeigen
Excellent
