The compact design integrates a passive crossover and a 100/70V transformer into the housing and allows the user to operate the speaker from either traditional or 100V amplifiers. Because it is based on the same cabinet as the Alien 05 colour changer, installing multiple Alien products - both colour changers and speakers - is straightforward. Useful in a wide variety of applications, the 110-degree acoustic coverage pattern ensures even sound pressure and tonal balance throughout the coverage area. As a special feature, the Alien S51 comes with a software program that calculates the number of speakers needed in a given venue.
(Ruth Rossington)
