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The 551’s age matters: this is a roughly early-1990s Meridian design, not a current-generation amplifier. At US$950, it is ambitious, sitting well above the recent comparable median of US$661 and 75th percentile of US$670. Unless this example has unusually strong provenance, recent servicing, or desirable options, the asking price is difficult to justify.
That said, the 551 remains a serious, thoughtfully engineered integrated: its rhythmic control, clean preamplifier section, adjustable inputs, and roughly 65 watts per channel make it a capable partner for revealing speakers. Optional MM/MC phono modules add useful flexibility, while the compact build and Meridian system connectivity are genuine strengths. At this price, insist on clear evidence of service, quiet operation, reliable display and controls, and confirmation of the phono configuration; a healthy example would make more sense closer to the established market range.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Meridian Audio, founded in 1977 in Cambridgeshire, England, by industrial designer Allen Boothroyd and engineer Bob Stuart, emerged as a trailblazer in high-end audio. From its inception as Boothroyd Stuart, the company quickly distinguished itself through relentless innovation, pioneering digital signal processing (DSP) and becoming the first to deliver high-resolution digital active loudspeakers for domestic use, such as the groundbreaking M1 and D600 models.
The brand's product focus centers on premium home audio systems, including DSP loudspeakers with integrated amplification, active speakers, and high-resolution components engineered for superior sound fidelity. While rooted in hi-fi excellence, Meridian has masterfully expanded into bespoke automotive audio, crafting immersive systems for luxury marques like Land Rover, Jaguar, and McLaren, with signature 3D surround setups featuring up to 23 speakers tailored to vehicle acoustics.
Positioned firmly in the high-end market, Meridian commands respect among discerning audiophiles for its British-engineered precision, over 350 industry awards, and museum-worthy designs exhibited at the Victoria and Albert Museum and MoMA. It remains a benchmark for acoustic innovation, blending heritage craftsmanship with forward-thinking technology across home and automotive realms.
See all Meridian listings on RADAR.
