Originally marketed as the Concentric Dual but more usually known as the Monitor Black, this loudspeaker was a coaxial design, meaning that the high-frequency driver (tweeter) was situated in the centre of the 15-inch main woofer cone. Fifteen years later, the company launched its most iconic product, the Dual Concentric loudspeaker. The Tulsemere Manufacturing Company was formed in 1926 by Guy R Fountain, with the name Tannoy – an abbreviation of tantalum lead-alloy – appearing in 1932. Just as the name Hoover is often used to describe any make of vacuum cleaner, certain types of public address systems – such as those installed at railway stations, sports stadiums and schools – are commonly referred to as Tannoys. Everything in the soundstage is positioned precisely, and high frequencies sound clear and open.If all the legendary pro-audio brands that we have featured in this series, only one can claim to be so well-known to the general public that it has earned a place in the English dictionary. The aim is to produce a focused, cohesive sound – and that's exactly what the Tannoys deliver. Those of you unfamiliar with Tannoy's speaker design might be wondering where the tweeter is: in fact the small titanium-domed unit is positioned in the centre of the 10cm driver. Next, there's the Dual Concentric driver arrangement, from which the speaker take part of their model number (the rest comes from the driver size in inches, fact fans). Not only does it give the speakers a unique look, it's also there for very solid acoustic reasons, reducing internal resonances and breaking up reflections. However, you needn't sit there feeling sorry for the DC4s: they still have some of the most attention-grabbing design features we've seen.įor starters, their trapezoidal cabinet (available in either a light oak or espresso wood veneer) is a distinctive alternative to the standard rectangular boxes of the rivals. Tannoy's Revolution DC4 is one tiny speaker – even the diminutive Dali Lektor 2s loom menacingly over it.
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