Subwoofer Options; Sub Lf Preset Options - JBL VTX Series User Manual

10 - SUBWOOFER OPTIONS

VTX A6 presets are designed for a 2:1 minimum cabinet ratio when used with the VTX B15, and a 4:1 ratio when used with dual 18-inch
subwoofers like the VTX B28. The minimum recommended ratios provide sufficient headroom for both subwoofers and full-range cabi-
nets to reach maximum SPL (limiting) at the same time, while maintaining a minimum of 10 dB SUB to full-range low frequency contour.
Other ratios can be used depending on the desired tonal balance target, SPL, and application.
VTX A6

10.1 SUB LF PRESET OPTIONS

The A6 80 Hz preset extends the frequency response of the system down to 80 Hz and should be used with 80 Hz subwoofer presets.
When A6 arrays are combined with other VTX A-Series products like the A8 and A12, all arrays should be operated in the same 80 Hz
LF mode for proper summation across arrays and subwoofers.
Example 1: A6 80 | SUB: 80
20
10
0
-10
-20
20 100
VTX B15
1000
Frequency (Hz)
VTX A6 | User Manual
Example 2: SUB Preset Options: 60 or 80
20
10
0
-10
-20
20 100
23
VTX B28
SUB: 80Hz
SUB: 60Hz
1000
Frequency (Hz)