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This is a buyer’s market for this kind of vintage integrated amp, and at £141 the asking price sits just under the £144 median for recent UK comparables, so it reads as fair rather than cheap. It’s close enough to the middle of the pack that I’d see it as a sensible buy if the unit is working properly and presentable.
The PM645 Vxi is a well-liked, straightforward Harman Kardon integrated with enough power for most speakers and a reputation for a clean, punchy presentation rather than hype or flash. The upside here is that it’s priced in the zone where a clean, fully functioning example can make a lot of sense, especially if it’s been serviced or kept by an original owner; at this level, I’d mainly want reassurance on smooth controls, stable channels, and a healthy phono stage.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Harman Kardon traces its origins to 1953, when Dr. Sidney Harman and Bernard Kardon, both engineers frustrated with conservative audio manufacturing at the David Bogen Company, invested $5,000 each to launch their venture in Westbury, New York. Their debut product, the Festival D1000, became the world's first compact AM/FM hi-fi receiver, blending breakthrough technology with sleek design to make high-fidelity sound accessible beyond technical enthusiasts. Pioneering innovations like the 1958 Festival TA230 stereo receiver, the 1959 Citation II ultra-wide bandwidth tube amplifier, and the 1970 CAD5 hi-fi cassette recorder with Dolby noise reduction cemented their legacy in simplifying premium audio for the home.
The brand focuses on integrated receivers, amplifiers, tuners, and speakers that emphasize performance, reliability, and elegant industrial design. Over decades, it expanded into home theater systems and automotive audio, powering systems in vehicles from Land Rover and BMW to Volvo and Polestar. While not delving into turntables, DACs, headphones, or cables, Harman Kardon prioritizes cohesive hi-fi components that deliver warm, detailed sound without unnecessary complexity.
Harman Kardon holds a solid mid-tier position in the hi-fi market, renowned among knowledgeable buyers for its enduring quality and value rather than ultra-high-end exotica or vintage collector status. Now part of Harman International, it appeals to discerning listeners seeking dependable, stylish gear that echoes its innovative heritage without commanding boutique premiums.
See all Harman Kardon listings on RADAR.
