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Offered is „ACOUSTIC MANUFACTURE - DIFFUSOR 2D 31/150“ by Various / Other as second-hand device from the category „Acousical Element“ on audio-markt.de - the online market place for high-end. The advert with the number 3120552759 ends on 14.10.2026 at 12:25 o'clock.
€1,049 looks fair to slightly attractive for this piece, especially because the listing shows an original price of €2,395 and the unit is only about two years old with OVP and paperwork included. For a specialist diffusion panel, that puts the ask at roughly mid-market rather than “stretch” money, and it’s a lot easier to like when the item is complete and properly documented.
What makes it worthwhile is the scale and seriousness of the design: large, heavy, purpose-built room treatment from a respected maker, not decorative acoustic foam. That matters because good diffusers are expensive to buy new and tend to hold value when they’re kept clean and original. I’d mainly confirm condition of the surface and mounting, plus whether the full set and all original accessories are present; otherwise this reads like a solid buy rather than a risky one.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Acoustical Manufacturing Co. was founded in London in 1936 by Peter J. Walker and later moved to Huntingdon, Cambridgeshire in 1941. The company is the origin of the QUAD name, which was introduced for its first domestic amplifier, and its British heritage is central to the brand’s identity.
The brand is best known for amplifiers and electrostatic loudspeakers, with a long association with carefully engineered, performance-first hi-fi rather than lifestyle audio. Over the years, its catalogue has also included tuners and other traditional hi-fi electronics, but amplification remains its strongest calling card.
In the market, Acoustic Manufacture/QUAD sits in the respected upper-middle to high-end segment, appealing to serious listeners who value classic engineering and a conservative design philosophy. It is especially well regarded by vintage collectors and audiophiles who prize accuracy, longevity, and a distinctly British approach to sound.
See all Acoustic Manufacture listings on RADAR.
