The installation specific Vi-SUB is an actively driven
high performance cardioid subwoofer powered by a single amplifier channel. The
Vi-SUB features integrated rigging equipment. It shares the same acoustical and
visual design as the Vi-GSUB, which is intended for ground stacked applications
only. It houses two long excursion neodymium drivers, an 18" driver in a
bass-reflex design facing to the front and a 12” driver in a two chamber
bandpass design radiating to the rear. The cardioid dispersion pattern resulting
from this approach avoids unwanted energy behind the system that reduces the
reverberant field at low frequencies and provides the greatest accuracy of low
frequency reproduction.
The Vi subwoofer can be used to supplement Vi8 and Vi12 loudspeakers in
various combinations, ground stacked or flown, either integrated on top of a Vi8
/ Vi12 array or as a separate column. The Vi-SUB cabinet is constructed from
marine plywood and has an impact resistant paint finish. The front of the
loudspeaker cabinet is protected by a rigid metal grill backed by an
acoustically transparent foam.