JL Audio XD200/2 - Manual (Page 9)

9
REMOTE LEVEL CONTROL (OPTIONAL)
With the addition of the optional Remote
Level Control (HD-RLC), you can control the
volume of the XD200/2 from the front of the
vehicle. This is useful for subwoofer level control,
rear channel level control, center-channel level
control or even as a master volume control for
the system.
The HD-RLC connects to the jack labeled
“Remote Level Control” on the Connection Panel
of the amplifier using a standard telephone cable
(supplied with the HD-RLC). If desired, multiple
XD (and HD) amplifiers can be controlled from
a single HD-RLC controller using a simple phone
line “splitter” and multiple phone cables.
When connected to the amplifier, the
HD-RLC operates as follows. At full counter-
clockwise rotation, the audio will mute
completely. At full clockwise rotation the level
will be the same as if the HD-RLC was not
connected at all. In other words, it operates
strictly as a level attenuator.
PREOUTS
The XD200/2 incorporates a pass-through
preamp output section, so that additional
amplifiers can be easily added to the system.
The preamp output delivers the same signal
that is connected to the Amplifier Inputs. This
can be useful for feeding a subwoofer amplifier
when the XD200/2 is being used to drive front
speaker systems.
Note: The preamp output signal is not affected by
any crossover filter selected (if the input signal is
full-range, the preamp output will be full-range).