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March Audio P451 Mono Amplifiers A pair of March Audio P451 monoblock amplifiers offered for sale. Purchased new by me 3yrs ago. They present as new, in original packaging. Using Bruno Putziy’s class leading EIGENTAKTClass-D module. The amps are difficult to photograph without looking like the edges might have some marks but they do not. Excellent amplifiers but I have built another system (Linkwitz) using their proprietary boxes so these are now on the market. No problems driving speakers down to 2ohms. Condition: As New / Mint Payment Method: PayPal (buyer pays commission), EFT, Cash Reg
Compared with buying new at this level, A$2,650 for a like-new mono amp is strong value if the unit is the March Audio P451/P451-class monoblock the listing implies; a similar March Audio mono listing has shown A$2,700 against an A$5,000 RRP, so this asking price sits slightly under that used benchmark and reads as a good buy rather than an ambitious ask.
What makes it attractive is the usual March Audio appeal: serious power, high current delivery, and a clean, controlled presentation that suits demanding speakers far better than a typical integrated or entry-level stereo amp at this money. In like-new condition, the upside is simple—less depreciation, likely low wear, and a chance to get a locally respected, hand-built amp without paying retail. If it comes with original packaging and a clean service history, it looks like a worthwhile grab.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
March Audio emerged in 2018 from the ingenuity of founder Alan March, an engineer with a lifelong passion for music and audio electronics. Hand-built in a facility near Gingin in Western Australia, the brand embodies a commitment to exceptional engineering and strict quality control, transforming personal enthusiasm into a focused pursuit of high-performance audio at accessible prices.
The company specializes in meticulously designed components, including Purifi-based amplifiers and speakers that prioritize technical precision and sonic excellence. Their lineup emphasizes amplification and loudspeaker solutions, crafted to deliver superb sound without the premiums often seen in boutique offerings.
March Audio occupies a niche as a boutique Australian innovator, earning praise among discerning audiophiles for outperforming expectations in value-driven hi-fi. Positioned in the mid-to-high tier market, it appeals to knowledgeable buyers seeking transparent, powerful performance over hype, with a growing reputation for reliability and musicality in enthusiast circles.
See all March Audio listings on RADAR.
