JBL VTX Series Wiring Guide

9
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Breakout Cable Examples:
The example below shows an array of 6x VTX G28 wired using the LK VTX-NL-424 breakout cable. In this conguraon
each VTX subwoofer is driven by an independent amplier channel allowing for exible cardioid subwoofer circuing
and a unique delay value (EDS) for each enclosure.
When construcng large horizontal subwoofer arrays, the overall size of an array can have a negave impact on the
subwoofer coverage. The longer the array, the narrower the coverage. Electronic Delay Steering (EDS) is a technique
used to alter the coverage angle of a given subwoofer array by applying a specic pre-calculated delay value to each
subwoofer enclosure. The goal of EDS is to electronically alter the shape of a subwoofer array and widen the coverage
paern by creang a virtual arc. The radius of the arc controls the radiang paern of the array and each delay value is
carefully calculated to align all subwoofers to the virtual arc. Hybrid cardioid EDS subwoofer arrays provide even hori-
zontal coverage with 15—25 dB broadband SPL rejecon behind the array. Below is an example of a 12x G28 cardioid
subwoofer array and the appropriate delay values for a 90-degree coverage paern.
0.29ms 0.77ms 1.45ms 2.29ms 3.25ms 0.00ms 0.00ms 0.29ms 0.77ms 1.45ms 2.29ms 3.25ms
NL4 Cable
LK VTX-NL-424

JBL VTX Series Specifications

General

Brand	JBL
Model	VTX Series
Category	Speakers
Language	English