d&b Vi-SUB - Manual (Page 6)

2.2. Connections
The cabinet is fitted with a pair of 4-pin connectors. All four pins of
both connectors are wired in parallel. The Vi-SUB uses the pin
assignments 2+/2–. Pins 1+/1– are designated to the Vi8 or Vi12
loudspeakers. Using one connector as the input, the second
connector allows for direct connection to a second cabinet.
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 1+ 1– 2+ 2–
PG n.a. n.a. Brown (+) Blue (–)
2.3. Operation
NOTICE!
Only operate d&b loudspeakers with a correctly configured d&b
amplifier, otherwise there is a risk of damaging the loudspeaker
components.
Operation with D12
Select the controller setup V-SUB.
Within the amplifier it is available in "Dual channel" and "Mix
TOP/SUB" mode.
Selecting the V-SUB setup enables up to two Vi-SUB loudspeakers
to be driven by the respective amplifier channel.
2.3.1. Controller settings
For acoustic adjustment the 100 Hz function can be selected.
100 Hz circuit
If the 100 Hz circuit is selected, the upper operating frequency of
the system is reduced from 115 Hz to 95 Hz.
It can be used when actively driven Vi subwoofers are used to
supplement Vi cabinets operated in full range mode. The 100 Hz
mode can also be used to compensate for the effect of close
coupling between the Vi-SUB and Vi cabinets operated in CUT
mode. With Ti cabinets the standard mode is recommended.
Fig. 3: Connector wiring
d&b Vi-SUB Manual (1.1 EN) 6