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Loudspeakers
British heritage loudspeaker maker building the Windsor, Knight, and classic Avon/Richmond ranges from the IAG Huntingdon works.
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about castle
Castle Acoustics was founded in 1973 in Skipton, North Yorkshire, by ex-Wharfedale cabinet makers who wanted to apply traditional British furniture-grade veneer work to loudspeaker enclosures. For three decades the brand was synonymous with floorstanding two-ways in real-wood cabinets — the Severn, Howard, and Harlech models earned a reputation for forgiving voicing, room-friendly bass alignment, and finish quality unusual at their price points. The original Skipton factory closed after a period of ownership instability in the early 2000s. IAG Group (parent of Wharfedale, Quad, Mission, Audiolab, and Leak) acquired the brand in 2007 and relocated engineering and production into IAG's facilities, with cabinet work eventually consolidated at the group's Shenzhen plant. The current catalog spans three families: the entry Knight series (Knight 1 standmount through Knight 5 floorstander, introduced 2010 and refreshed since), the mid-tier Richmond and Avon ranges that carry forward the classic Castle silhouettes, and the flagship Windsor series (Duke standmount and Earl floorstander) launched as the first Castle models in years to be designed and built in the UK at IAG's 9,000 sq ft Huntingdon facility — drivers, cabinets, and crossovers all sourced in-house there. US distribution has been dealer-direct rather than exclusive — Vinyl Sound in Buffalo, NY and Planet of Sound carry the line, with MoFi Distribution handling the recent Windsor relaunch. Stereophile maintains a brand listing, and Home Theater HiFi has reviewed the Avon and Inversion 50. Hi-Fi Choice and Hifi Pig cover the UK launches. Castle competes in the £500–£3,000 bracket against sister-brand Wharfedale Diamond/Evo, Q Acoustics Concept, and Spendor's entry models, with the Windsor pushing into Harbeth and ProAc territory. The brand exhibits at HIGH END Vienna 2026 under the IAG stand.