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DDX USER GUIDE V1.0
DDX USER GUIDE
Coaxial Differential Dispersion Technology
All DDX Series full-range models feature Martin Audio’s unique, patent protected coaxial differential dispersion technology.
Non-coaxial systems can suffer from uneven frequency response in the crossover region because of interference between the LF and HF
sections. Depending on the listening position, this causes off-axis variations in frequency response.
A disadvantage of conventional coaxial devices is that coverage angle reduces at higher frequencies, due to inadequate waveguides. DDX
devices overcome this by using a static waveguide that merges seamlessly with the unique cone shape, maintaining the dispersion pattern
even at very high frequencies.
A differential dispersion driver has an asymmetric coverage pattern. Wide coverage at the bottom of the vertical coverage angle and
narrower at the top. This covers the target area more evenly than a system with a conventional, fixed-dispersion type driver as the wide
section covers more audience in the near field, and the narrow section projects sound better to the rear of the space.
Conventional X x Y loudspeaker coverage DDX driver coverage
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