JBL VTX Series Wiring Manual
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Also See for VTX Series:
- Rigging manual (86 pages) ,
- Manual (78 pages) ,
- User manual (41 pages)
Related Manuals for JBL VTX Series
Summary of Contents for JBL VTX Series
- Page 1 VTX Subwoofer Wiring Guide...
- Page 2 Internal VTX Subwoofer Wiring All VTX series subwoofers (with the exception of the VTX F18S) have the two woofer components independently wired to the input panel NL connectors. One woofer is connected to Pin 1 (±) and the other to Pin 2 (±). The same pin config- uration is used for NL4 and NL8 connectors, giving the user the choice to use either type of cable.
- Page 3 Crown Audio I-Tech 12000HD Wiring: Crown Audio 2-channel I-Tech HD amplifiers come with both channels 1 and 2 wired to the upper (CH1) NL4 connector. This wiring method is typically used when powering 2-way bi-amplified loudspeakers and has Channel 1 outputs wired to Pins 1 ±, and Channel 2 outputs wired to Pins 2 ±.
- Page 4 I-Tech 12000HD Standard Wiring (Discrete Mode): Standard 4-conductor NL4 cables can be used to connect VTX subwoofers to Crown I-Tech HD amplifiers. Using stand- ard cables, each component within a VTX subwoofer enclosure is connected to an independent amplifier channel as shown in the drawing below.
- Page 5 I-Tech 12000HD Standard Wiring Examples: Standard NL4 jumper cables can be used to connect multiple subwoofer enclosures together in a daisy chain wiring scheme. When connecting VTX subwoofers in this manner, each amplifier channel powers half of the subwoofer group. Below are some examples using VTX Subwoofers and discrete wiring: Crown I-Tech 12000HD Example: 6x VTX S25 powered by iTech 12000HD amplifiers...
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Page 6: Channel
I-Tech 4x3500HD Standard Wiring (Discrete Mode): The same wiring configuration can be achieved with the Crown 4x3500HD amplifier by using 2 x NL4 cables and 2 x NL4 jumpers as shown below: Crown I-Tech 4x3500HD NL4 Wiring CH1/2 Pin 1 ± Channel 1 Pin 2 ±... -
Page 7: Channel
JBL Professional has partnered with cable manufacturer Link to offer these adapter cables as finished goods that can be ordered internationally directly from Link. Below are the part numbers for the products and to purchase, please contact Link at: sales@linkusa-inc.com... -
Page 8: Channel
I-Tech 12000HD Parallel Mode Example: Using the LK VTX-NL-424 breakout cable, two subwoofer encloses can be connected to a single 2 channel iTech HD amplifier. The breakout cable allows each subwoofer to be connected to an independent amplifier channel as illustrat- ed in the example below. -
Page 9: Channel
Breakout Cable Examples: The example below shows an array of 6x VTX G28 wired using the LK VTX-NL-424 breakout cable. In this configuration each VTX subwoofer is driven by an independent amplifier channel allowing for flexible cardioid subwoofer circuiting and a unique delay value (EDS) for each enclosure. NL4 Cable When constructing large horizontal subwoofer arrays, the overall size of an array can have a negative impact on the subwoofer coverage. - Page 10 Breakout Cable Examples: The example below shows an array of 3x VTX S25 and a Vertec 4886 used as a front fill enclosure. The array is wired using the LK VTX-NL-844 breakout cable to a single Crown iTech 4x3500HD amplifier. In this configuration the breakout cable provides independent DSP for each speaker allowing for a cardioid configuration for the subwoofers and a sepa- rate preset for the VT4886 front fill.
- Page 11 Crown Audio VRack 12000HD: Crown Audio VRack12000HD output panels have been specifically wired to facilitate convenient operation of VTX sub- woofers in parallel mode (6 subwoofers per VRack, 1 subwoofer per amplifier channel in parallel mode): The NL4 connectors in the Blue group are all wired to individual amplifier channels with Pins-1 and Pins-2 connected in parallel at the VRack panel.
- Page 12 Crown Audio VRack 4x3500HD: Unlike the VRack 12000HD, due to its high channel density, the Crown Audio VRack 4x3500HD does not contain a speaker output panel and all connections are made directly to the amplifier's NL4 and NL8 connectors. As seen above, to implement parallel mode wiring on IT-4x3500HD amplifiers, a pair of LK VTX-NL-424 adapters can be used in con- junction with 2 x NL4 cables that are directly connected to the amplifier’s NL4 outputs.
- Page 13 Performance Manager: Performance Manger can facilitate both Discrete and Parallel wiring modes for VTX Subwoofer products. The correct wiring mode can be selected from the Array Configuration menu and under the Sub Mode drop down menu. The Sub Mode and amplifier to speaker wiring connection should be set correctly so that Performance Manager accurately rep- resents the physical arrays and actual cabling.
- Page 14 Based on the selected mode, Performance Manager adjusts the labels found on the speakers and amplifier channels to reflect the type of wiring. For example, the subwoofer label S1 + S2 indicates parallel wiring mode and that both woof- ers are driven by one amplifier channel. When the label shows S1 | S2 that indicates discrete wiring mode and that each woofer is powered by a different amplifier channel.
- Page 15 Breakout Cable Pin Assignments: LK VTX-NL-424 Wiring: Female NL4 NL4 - 1 NL4 - 2 Pin 1+ Pin 1+ | Pin 2+ Pin 1- Pin 1- | Pin 2- Pin 2+ Pin 1+ | Pin 2+ Pin 2- Pin 1- | Pin 2- NL4-1 NL4-2 LK VTX-NL-844...