Operation Manual
page 14
page 15
Operation Manual
Choose Input Wire and Connectors
Crown recommends using pre-built or professionally wired, balanced line (two-conductor plus shield), 22-24 gauge cables
with 3-pin XLR connectors. Unbalanced line may also be used but may result in noise over long cable runs.
Figure 1 shows connector pin assignments for balanced analog wiring or AES/EBU digital wiring.
(The use of standard
analog cable with AES/EBU will result in diminished performance)
For best results, 110 ohm shielded twisted-pair
cable for AES/EBU signals is highly recommended. Figure 2 shows connector pin assignments for unbalanced analog wiring.
NOTE: Custom wiring should only be performed by qualified personnel.
Choose Output Wire and Connectors
Crown recommends using pre-built or professionally wired, high-quality, two-, four- or eight-conductor, heavy gauge speaker
wire and connectors. Use Class 2 output wiring. You may use a 4- or 8-pole Speakon
®
connector. To prevent the possibility of
short circuits, wrap or otherwise insulate exposed loudspeaker cable connectors.
CAUTION – SHOCK HAZARD: Potentially lethal voltages exist at the output connectors when the amplifier is
turned on and is passing a signal.
Using the guidelines below, select the appropriate size of wire based on the distance from amplifier to speaker.
Distance
Wire Size
up to 25 ft. (up to 7.62 m)
16 AWG
26-40 ft. (7.62-12.2 m)
14 AWG
41-60 ft. (12.2-18.3 m)
12 AWG
61-100 ft. (18.3-30.5 m)
10 AWG
101-150 ft. (30.5-45.7 m)
8 AWG
151-250 ft. (45.7-76.2 m)
6 AWG
CAUTION: Never use shielded cable for output wiring.
Setup
Input Panel
Network Link input.
Also distributes VDrive
digital audio.
Network Link
output. Also
distributes VDrive
digital audio.
Rear Rack lighting with Blue,
White, and off settings.
Analog Input Section. See
Analog Input Mode Section
for more information.
VDrive - This selector switch serves two functions.
Function 1 - sends AES3 that is plugged into the AES3
connector to the right of this switch over the Network
Connection. Function 2 - If no AES3 connection is landed
to the rack, this will pull the AES3 signal from a VRack
within the network's ring topology that has AES3 landed
to its connector and the VDrive switch engaged. See
VDrive section for more information (page 27).
AES Link Output - If power is applied to the rack, the
AES3 signal is buffered. If the rack is not powered on,
the AES3 signal is not buffered.
AES3 Input - Input AES3 into this connector, the signal
will go directly to the amplifiers. If AES 1+2 or AES 3+4
is selected, the AES3 fed into this connector will send
AES3 to the Network connection via VDrive.
Analog Input Rack Wiring Schematic
Analog Input Wiring Schematic
Summary of Contents for VRACK
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