The MTM configuration, while its vertical off-axis response is perfectly acceptable in a vertical alignment of drivers, generally exhibits unacceptably poor horizontal off-axis response when orientated with the drivers aligned horizontally. This may be due to the philosophies of the designer, or constraints of the drivers and crossover topologies utilized. In other words, if the MTM was not optimized for horizontal orientation, it likely will exhibit audible combing effects off-axis. The scope of this design exercise was to determine if good horizontal off-axis response could be attained using the chosen drivers, and what crossover topologies were more acceptable to this endeavor.