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Meridian’s 551 has a strong reputation for clean, controlled sound and a proper high-end build, with enough power for many real-world speakers. At US$950, this listing is clearly ambitious against your recent comp set: the median is US$661, with the 25th percentile at US$643 and the 75th at US$670, so it sits well above the usual asking band.
That doesn’t make it a bad amplifier, just one that needs a reason to stretch. The 551 is well-liked for its smooth, detailed presentation, useful phono option, remote control, and flexible input setup, so a clean, original-owner example with working display, remote, and no service needs could still appeal. But at this price, buyers should expect a well-documented condition story and full accessories; otherwise it’s hard to justify versus the broader market.
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.
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