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Condition is listed as unknown, but at £20 this is a genuine bargain against the comparable market: it sits well below the £60 25th-percentile figure and far under the £128 median. Even allowing for some uncertainty, the price leaves ample room for a very worthwhile buy.
The RXDi is a compact dual-channel Lightning receiver for the Blink 500 ProX transmitters, with selectable mono/stereo output and a useful 3.5mm monitoring socket. It is especially handy as a replacement or spare for an existing ProX kit, and its low weight makes it unobtrusive on an iPhone or iPad. The key check is compatibility: it works with ProX transmitters, not the older Blink 500 or Blink 500 Pro versions. Also confirm that the Lightning connector is sound and that both channels operate, but at £20 those checks are well justified rather than alarming.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Dual emerged from the Black Forest region of Germany in 1907, when brothers Christian and Joseph Steidinger began manufacturing clockwork and gramophone components in St. Georgen. The company adopted its now-iconic name in 1927 after pioneering dual-mode power supplies that allowed gramophones to operate from either mains electricity or mechanical wind-up mechanisms. This innovation marked the beginning of Dual's transition from component supplier to full-fledged audio manufacturer, establishing a foundation of engineering precision that would define the brand for decades.
Dual built its reputation primarily as a turntable specialist, becoming Europe's largest turntable manufacturer by the post-war era with over 3,000 employees across multiple factories. Beyond vinyl playback, the company expanded into cassette players, CD players, and broader consumer electronics throughout the 1970s and 1980s, demonstrating versatility across analog and digital formats. The company's focus on mechanical excellence and stable drive systems earned it recognition as a dependable, quality-focused manufacturer throughout its European heyday.
Today, Dual occupies a fragmented market position following corporate restructuring in the 1990s and subsequent ownership changes. The original German turntable line continues production in St. Georgen under Alfred Fehrenbacher GmbH, maintaining traditional manufacturing standards and appealing to vintage enthusiasts and collectors. Separately, Namsung Electronics markets Dual-branded consumer electronics in the Americas at accessible price points. The brand's legacy rests primarily on its classic turntables, which remain highly sought after by collectors and audiophiles valuing precision engineering and heritage craftsmanship.
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