22
VTX A8 | User Manual
8.2 - B18 ON CROWN I-TECH 12000HD
When using Crown Audio I-Tech 12000HD amplifiers, up to 4 x VTX B18 (2 x per circuit) subwoofers can be powered per amplifier. Based
on the B18 component resource requirements, this allows for optimum power-to-transducer ratio without compromising the maximum
SPL capabilities of the system. The example below illustrates how to connect 4 x VTX B18 cabinets to a 2-channel I-Tech HD amplifier
using standard 4-contactor NL4 cables. One NL4 cable is used to connect the amplifier to the first B18 cabinet and then standard 4-con-
tactor NL4 jumpers are used to connect all the cabinets together. The channel selection switch at the back of each B18 is used to assign
each cabinet to the appropriate amplifier channel. Two B18s are set to A (channel 1, Pin1) and two B18s are set to B (channel 2, Pin 2).
A
B
A B
A
B
A B
Channel Selection
Switch
JBL VTX B18
Crown I-TECH HD
NL4 Cable
TIP: Other channel assignments can be implemented when using the 2-channel Crown Audio I-Tech HD amplifiers. Use
JBL’s HiQNet
®
Performance Manager
TM
control software to assign speaker presets.
CAUTION: In this configuration, only the Channel-1 NL4 connector can be used on the I-Tech 12000HD amplifier. The
Channel-1 NL4 connector is wired to both Channel-1 and Channel-2 were Channel-2 includes only Channel-2.
Amplifier Rear Panel
Amplifier Channels
Channel 1 B18 1&2
Channel 2 B18 3&4
To Next Page
Loading...
Need help?
General
