"The “MTM” (Midrange-Tweeter-Midrange) geometry generally refers to a driver arrangement where two midrange drivers flank a tweeter vertically. This arrangement has several advantages, among which is greater dynamic range in the midrange portion of the spectrum. Wilson has employed various versions of MTM driver geometries starting with the X-1 Grand SLAMM. However, Wilson’s MTM configurations have always been far more sophisticated and complex than competing designs. Rather than mounting the three drivers that make up the MTM in a flat baffle, Wilson has invariably employed a modular approach. This has several benefits, one being the ability to optimize the enclosure properties for each driver. Most importantly, in terms of Wilson’s unique technology, the separate modules in the MTM can be made to be adjustable—both in terms of the relative position of each driver module one-to-another in the time domain, as well as having the ability to optimize each driver’s dispersion characteristics within the array."