d&b audiotechnik Vi-GSUB, Руководство пользователя

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2.1. Product description
The Vi-GSUB is a compact high performance cardioid subwoofer
for use with d&b V-Point cabinets.
The Vi-GSUB houses two long excursion neodymium drivers in an
integrated cardioid setup: 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 arrangement and tuning provide a
cardioid dispersion pattern using a single amplifier channel.
Its frequency response extends from 37 Hz to 115/95 Hz.
The enclosure is constructed from marine plywood with an impact
resistant black paint finish. The front of the cabinet is protected by
a rigid metal grill backed by an acoustically transparent foam.
Four rubber feet prevent cabinet movement and protect the bottom
panel against scratching. Correspondingly shaped recesses in the
top panel of the cabinet prevent cabinet movement when stacking
Vi-GSUBs.
Cardioid dispersion
Cardioid dispersion avoids unwanted energy behind the system
and greatly reduces the excitation of the reverberant field at low
frequencies providing the greatest accuracy of low frequency
reproduction. The subwoofers can be used as stand-alone solutions
or in stacked combinations with a minimum distance of 60 cm (2 ft)
between adjacent cabinets or between the subwoofers and a side
wall. When positioned in front of walls, the minimum distance to
rear walls is maintained by the wheels mounted at the rear of the
cabinet.
2.2. Connections
Cabinets with the weather resistant option (WR) are equipped with
a fixed input cable (PG type, H07-RN-F, 2 x 2.5 mm
2 (AWG 13),
standard length 5.5 m (18 ft).
Pin equivalents of the applicable connector options are listed in the
table below.
NL4
M
1+ 1– 2+ 2–
ST n.a. n.a. + –
PG n.a. n.a. Brown (+) Blue (–)
d&b SenseDrive
The SenseDrive feature within D12 amplifiers enables electrical
compensation for the properties of the loudspeaker cable used.
SenseDrive requires an additional sense wire. SenseDrive is
therefore only available with EP5 connectors and 5-wire cabling
for applicable loudspeakers.
Vi-GSUB loudspeaker
Cardioid dispersion pattern
Connector wiring
2. Vi-GSUB loudspeaker
d&b Vi-GSUB Manual 1.1 en 5