System Amplification; Using The A12 With Crown I-Tech 4X3500Hd - JBL VTX Series User Manual

8 - SYSTEM AMPLIFICA TION
Like all VTX systems, the VTX A12 is powered exclusively by Crown I-Tech HD amplifiers for optimum performance and consistency
around the world. Crown I-Tech HD Series amplifiers feature BSS Audio OMNIDRIVEHD™ processing on each amplifier channel, includ-
ing the acclaimed LevelMAX™ Limiter Suite and support for linear-phase FIR filters. All A12 processing is performed by the I-Tech HD's
internal DSP; no other DSP is required. Crown amplifiers include a user-adjustable input section for room correction equalization, array
size compensation, and circuit adjustments.
Standard A12 presets are available for both the Crown I-Tech 4x3500HD and Crown I-Tech 12000HD. The most up-to-date presets
are available for download from www.jblpro.com, and are always bundled in the latest version of JBL's Performance Manager control
software.
CAUTION: The A12 and A12W require different presets, as each set of presets is designed for a specific speaker
type . A12 and A12W presets are not interchangeable, so the two models cannot be used within the same circuit
group . Independent amplifier drive is required .

8.1 USING THE A12 WITH CROWN I-TECH 4X3500HD

A Crown I-Tech 4x3500HD amplifier can power up to three A12 loudspeakers. Based on the power demands of the A12, this allows for
optimum power-to-transducer ratio without compromising the maximum SPL capabilities of the system. When finer control of coverage
in a venue is needed, smaller coverage areas can be created by using circuits of two cabinets.
Crown I-Tech 4x3500HD
Amplifier Channels
Channel 1 A12 LF
Channel 2 A12 LF
Channel 3 A12 MF
Channel 4 A12 HF
VTX A12 | User Manual
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JBL VTX A12