RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
OAD Ultrafidelity UF1 Power Amplifier This OAD Ultrafidelity 180W RMS amplifier is the original prototype for what was eventually released as the Vajra Power Amplifier. The actual audio circuitry is essentially the same as the Vajra, but with a smaller power supply. Class AB design using ThermalTrak transistors for Class A performance, but with the dynamics that only a Class AB can deliver. Original high quality Japanese electrolytic power capacitors have been replaced by the superior Split foil capacitors for an ultra smooth and accurate sound. Pure solid silver binding posts and RCA connect
Is A$4,500 fair for this one, or are you paying a bit of a premium? Against the recent Aussie comp set, it sits above the 75th percentile of A$4,290, so this reads as ambitious rather than a bargain. It’s not outrageously off-market, but you’d want something special in the listing to justify the extra spend.
That said, this is the sort of gear people buy for its serious engineering and long-term appeal, so a clean example can still be worth stretching for if it’s well cared for and complete. The upside here is in condition, provenance, and included extras: original packaging, documentation, and a careful owner can matter a lot more than a small price gap. If those aren’t strong, I’d keep looking.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
OAD Ultrafidelity emerged in 2015 from Melbourne, Australia, founded by veteran designer Jon De Sensi. Operating out of his home workshop, De Sensi drew on decades of high-end audio expertise, including his earlier Music Labs venture in 1990, where he pioneered advanced DACs, preamplifiers, and power amplifiers while engineering for Australia's Department of Defence. His collaborative spirit shone through contributions like the digital stages for Redgum's RGCD2 CD player, cementing his reputation before launching this boutique brand.
The lineup centers on meticulously crafted amplification and source components, including fully discrete Class A preamplifiers like the Padma, robust power amplifiers such as the Vajra, MM/MC phono stages like the UP1, and a versatile DAC/streamer. Dipole speakers round out the offerings, all hand-built with unique topologies emphasizing purity and performance. These Australian-made pieces prioritize solid-state innovation over mass production.
Positioned as a niche high-end contender, OAD Ultrafidelity earns acclaim for "staggeringly" flawless sound and cutting-edge design, appealing to discerning buyers seeking Melbourne-crafted excellence. Reviews praise its smooth, authoritative delivery, though as a relatively new player, it thrives in specialist salons rather than mainstream dominance, backed by three-year warranties and premium pricing around $10,000 for flagships.
See all OAD Ultrafidelity listings on RADAR.
