A CQ-1 under a line array of seven M3Ds (alpha units).

Line arrays offer distinct advantages in long-throw applications because, from the far field perspective all of the elements in the array appear to work as one. Double the number of cabinets, and the sound pressure level increases by 6 bB across the system’s entire operating frequency range. Such is not the case when closer to the array than about 30 feet, however: the more elements in the array, the more interference (combing) and the lower in frequency that interference occurs.

What to do for near-field coverage, then? One popular solution is to curve the line array in a "J" shape, using lower units in the array to cover closer seats. But once again, the laws of physics intervene. Radical curving defeats the inherent advantages of a line array: doubling the number of cabinets no longer results in double the sound pressure at all frequencies. Rather, curving the array greatly affects its directional characteristics, and the effect varies greatly with frequency. The result is that all other commercially available line arrays suffer uneven coverage and demonstrate markedly different sound quality in different audience areas.

• No minimum number of cabinets • Maximum flexibility in configuring systems • Optimal solutions for downfill and short throws • Retains value of existing loudspeaker inventory • Consistent sound quality throughout the venue

The M3D is unique by design, as it is completely compatible with Concert Series self-powered loudspeaker systems. Flexible configurations can be created from the wide variety of available Concert Series products, providing consistent, optimal sound quality to every seat in the house. This means that, while the M3D can be used in modestly curved arrays (up to 5 degrees box-to-box), there’s no need to introduce a radical curve in order to cover nearfield areas.