The DC10A is the largest and most expensive speaker in Tannoy’s Definition series, and they make no bones about the fact that the driver technology that took me aback is decades old. However, that driver -- and the rest of this speaker -- has been created by implementing that tried-and-true technology with modern-day knowhow. The DC10A’s tweeter, which has a 2” aluminum-alloy dome, nests very deeply inside a 10” midrange-woofer with a paper-pulp cone. The tweeter is aided by what Tannoy calls a Pepperpot Waveguide. This has small holes at its base, the part closest to the tweeter diaphragm, followed by a fairly long tapered tube that transitions into the midrange-woofer’s cone.
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