Dual Concentric Compression Driver
The use of a Dual Concentric compression driver results in a wavefront at the throat of the horn being perfectly coherent across its frequency range.
The MF/HF transducer loads into a large & proprietary designed common horn. There is a huge advantage here in comparison to acoustic sources hitherto used with horns which consist of an HF compression driver and a separate midrange compression driver, each with its own horn. Invariably there is interference between the midrange and high frequency at the crossover. This results in uneven off axis performance, even if the HF horn is mounted in front of the MF horn. This artefact is compounded even further if the sources are displaced on the front baffle – No Exceptions.
We found that superior sonic performance of the horn was achievable by using MDF instead of fabricating in fibreglass, due to the inert nature of the structure providing rigidity, and the particular nature of the materiel itself being acoustically absorbent and not susceptible to resonance.