Vtx A12 Preset Library; Vtx A12 Preset Modes And Options - JBL VTX A12 User Manual

Vtx series

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8 - VTX A12 PRESET LIBRARY

The VTX A12 preset library includes standard array and fill (FL) operating modes, along with full-range and 80Hz low-fre-

quency processing for VTX A12 and G28/S28 subwoofer combinations. Cardioid presets are included for all VTX

subwoofer models. VTX presets are exclusively developed for Crown I-Tech HD amplifiers and come bundled with JBL

HiQnet® Performance Manager

from the JBL Pro website. Please see below for a detailed description of VTX A12 operating modes and subwoofer

processing options, and refer to the Preset Library setup sheets for preset descriptions, memory locations, and output

channel assignments.

Two preset modes are available as are two low-frequency processing options:

VTX A12 FL: The FL presets (short for FILL) have nominally-flat frequency response and are to be used in situations

where one or two A12 cabinets are appropriate, such as distributed front fills. With this preset, the acoustical low-fre-

quency response of the system extends down to 45Hz (Fullrange).

VTX A12 FL 80: The FL 80 presets have nominally-flat frequency response and are to be used in situations where one

or two A12 cabinets are appropriate, such as distributed front fills. With this preset, the acoustical low-frequency re-

sponse of the system is set to 80Hz and used when subwoofers are available.

VTX A12: This is the standard VTX A12 preset for array use. A high-frequency shelving response is applied to offset LF/

MF array buildup for nominally-focused arrays (equal enclosure site angle impact spacing over the desired audience cov-

erage area). With this preset, the acoustical low-frequency response of the system extends down to 45Hz (Fullrange).

VTX A12 80: This is the standard VTX A12 preset for array use with subwoofers. A high-frequency shelving response

is applied to offset LF/MF array buildup for nominally-focused arrays (equal enclosure site angle impact spacing over the

desired audience coverage area). With this preset, the acoustical low-frequency response of the system is set to 80Hz.

The VTX A12 80 preset will generate the highest A-weighted maximum sound pressure level.

TIP:

• Both the Fullrange and 80Hz presets can be used with subwoofers depending on the application and

subwoofer arrangement. For more information on using subwoofers, see chapter 9.

• Mixing FL and standard presets in the same array is not recommended.

• The VTX A12 presets provide a well-balanced tonal starting point for a given array size. The Array Size

Compensation filter found in the JBL Line Array Control Panel (LACP) can be used to further fine-tune the

tonal balance of an array for a given array length. Please refer to the LACP section for more information.

control software. Audio Architect presets are also available and can be downloaded

VTX A12 | User Manual

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