Defining Moment
One of Tannoy's main claims to fame is its Dual Concentric driver technology, a type of coaxial design in which a tweeter is located at the apex of a bass cone. In the Definition line, the tweeter is a 1-inch titanium dome coupled to an acoustic waveguide behind it, which extends the frequency response up to 35kHz. The woofer uses a multi-fiber diaphragm material with a precision-tuned rear port to enhance low-frequency detail and resolution without introducing midbass coloration.
The crossover is of particular interest. The highest-quality components are used in a simple, "straight-path" design, and the entire circuit is cooled to –190 degrees Celsius (-310 degrees Fahrenheit) and thawed at a specific rate, which is said to reduce internal stresses in the microstructure, leading to superior resolution of fine detail and a more natural, cohesive sound. As with many high-end speakers, the Definition can be bi-wired or bi-amped, and it provides a unique fifth terminal that grounds the speaker's chassis to the amp to reduce any chance of radio-frequency interference.
At the top of the Definition lineup is the DC10T, which sports a 10-inch Dual Concentric driver and a separate 10-inch bass driver. Its frequency response extends from 30Hz to 35kHz (-6dB) with a sensitivity of 92dB/W/m. Like all Definition models, the parabolically curved cabinet is carefully designed to reduce resonances and internal reflections.
The DC8T is very similar to the DC10T with 8-inch drivers. Frequency response is just a smidge less, from 33Hz to 35kHz (-6dB) with a sensitivity of 89dB/W/m.
Finally, the DC8 is a smaller version of the DC8T with one 8-inch Dual Concentric driver and no secondary bass cone. The frequency response reflects this, ranging from 42Hz to 35kHz with a sensitivity of 88dB/W/m.
For now, the Definition speakers are intended for 2-channel audio systems, but Tannoy is working on a center-channel model to match them. And despite their high-end pedigree, they aren't all that expensivethe DC10T lists for $1900 each, the DC8T is $1400, and the DC8 is $900. If they sound as good as the studio monitors I know so well, that's what I call an ultimate value.
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