System information

X-Array Touring Loudspeaker Systems – Applications Notes – Page 2
Figure 2 indicates the nominal system impedance of each section as well as the DC resistance of each
section. The DC resistance of the drivers inside the enclosure may be measured with a standard volt-
ohm meter (VOM) at the input panel. The DC resistances are useful for troubleshooting individual loud-
speaker systems without opening up the loudspeaker enclosure.
1.2 Loudspeaker-System Wiring and Connections
The main X-Array™ touring systems (excluding the Xw floor monitors) all utilize two 8-pin Neutrik
Speakon

connectors on each system input panel. The HF drivers are always wired on Pins 4+ and 4-,
the MB drivers are always wired on Pins 3+ and 3-, and the LF and SUB drivers are always wired on
Pins 2+ and 2- and Pins 1+ and 1-. All eight pins are connected and are passed through from the input to
the output connector on every loudspeaker system. This wiring scheme minimizes the number of
speaker cables that must be run to the amplifier racks to power an X-Array™ loudspeaker system.
The Xw floor monitors all have two input panels – one on each end. Each input panel has a pair of 4-pin
Neutrik Speakon

connectors. This provides maximum flexibility for planning amplifier cable runs, mini-
mizing a cluttered appearance on the stage. The HF drivers are wired on Pins 2+ and 2- and the LF driv-
ers are wired on Pins 1+ and 1-. All of the pins are paralleled to each of the four connectors.
All of the loudspeaker systems (both main X-Array™ touring and Xw) use the same internal wiring color
code. All HF sections use a white (+) and black (-) pair of wires, all MB sections use a blue (+) and black
(-) pair of wires, and all LF and SUB sections use a red (+) and black (-) pair of wires.
The wiring diagrams for all of the X-Array™ loudspeaker systems are shown in Figure 2 and a brief de-
scription of the wiring-connection capabilities of each system is described below:
Xb: Two paralleled 8-pin Neutrik Speakon

connectors are used for electrical connection on the input
panel. Because the connectors are paralleled, it does not matter which connector is used as the input or
output when paralleling Xb systems. One LF driver is connected on Pins 1 and one LF driver is con-
nected on Pins 2. Although Pins 3 and 4 are not used internally in the Xb system, they are paralleled on
the input panel. This allows an X-Array™ MB/HF box (like the Xf – which uses Pins 3 and 4, but not 1
and 2) to be paralleled with an Xb, allowing all eight conductors to be used in a single cable run to the
amplifiers. When two Xb systems are jumped from one to another via the paralleled input-panel connec-
tors, the amplifier home-run cable will have two LF drivers on Pins 2 (for a 4-ohm load) and two LF driv-
ers on Pins 1 (for a 4-ohm load).
Xds: Two paralleled 8-pin Neutrik Speakon

connectors are used for electrical connection on the input
panel. Because the connectors are paralleled, it does not matter which connector is used as the input or
output when paralleling Xds systems. Like the Xb, one SUB driver is connected on Pins 1 and one SUB
driver is connected on Pins 2. Although Pins 3 and 4 are not used internally in the Xds system, they are
paralleled on the input panel. This allows an X-Array™ MB/HF box (like the Xf – which uses Pins 3 and
4, but not 1 and 2) to be paralleled with an Xds, allowing all eight conductors to be used in a single cable
run to the amplifiers. When two Xds systems are jumped from one to another via the paralleled input-
panel connectors, the amplifier home-run cable will have two SUB drivers on Pins 2 (for a 4-ohm load)
and two SUB drivers on Pins 1 (for a 4-ohm load).
Xf: Two paralleled 8-pin Neutrik Speakon

connectors are used for electrical connection on the input
panel. Because the connectors are paralleled, it does not matter which connector is used as the input or
output when paralleling Xf systems. Both HF drivers are paralleled on Pins 4 and both MB drivers are
paralleled on Pins 3. Although Pins 1 and 2 are not used internally in the Xf system, they are paralleled
on the input panel. This allows an X-Array™ LF box (like the Xb – which uses Pins 1 and 2, but not 3 and
4) to be paralleled with an Xf, allowing all eight conductors to be used in a single cable run to the amplifi-
ers. When two Xf systems are jumped from one to another via the paralleled input-panel connectors, the
amplifier home-run cable will have four HF drivers on Pins 4 (for a 4-ohm load) and four MB drivers on
Pins 3 (for a 4-ohm load).