JL Audio ClenSweep CL441 dsp, Owner'S Manual

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8 JL AUDIO CleanSweep ™ CL441dsp 8 JL AUDIO CleanSweep ™ CL441dsp
Using the OEM head unit’s volume control
instead of the CL441dsp Master Volume Control:
If desired, the OEM (factory) volume control
can be used to control the master system volume
as long as you accept the following compromises:
a) The factory volume control will not
control the AUX source volume. Only the
CL441dsp’s Master Volume Control can
control the AUX level.
b) There may be a noticeable increase in
system noise (hiss) at lower volume levels,
compared to using the CL441dsp’s Master
Volume Control.
c) There may be significant changes in
frequency response imposed by the OEM
system’s volume-dependent equalization.
These may be objectionable or acceptable,
depending on the car and the desired
performance of the system. In most cases,
OEM systems boost bass and treble at
lower volume settings (can be acceptable)
and often cut bass at higher volume settings
(more objectionable).
If no AUX source is being used and the sonic
compromises of using the OEM control are
acceptable, simply set the CL441dsp Master
Volume Control at full output (fully clockwise) and
hide it in the installation.
MASTER VOLUME CONTROL
CONNECTIONS AND MOUNTING
The CL441dsp Master Volume Control serves two
main functions:
1) To control the system volume
2) To switch between the OEM inputs and the
AUX inputs (by pushing in on the knob).
If no AUX source is connected, the knob will
mute / unmute the system when pressed.
For these reasons, you will want to locate the
knob, within easy reach of the driver, on the center
console or dashboard of the vehicle.
To mount the knob, first verify that sufficient
clearance exists behind the mounting surface for
the control assembly’s small enclosure. Then, drill
a 3\8-inch (9mm)
diameter hole in the mounting
surface. Remove the nut and washer from the
threaded collar and insert the control assembly
from behind the mounting surface. Place the
washer over the shaft and secure with the nut.
Finally, place one of the two supplied knobs over
the shaft, orienting the knob marker appropriately
relative to the rotation range of the control.
A small multi-color LED is also included to
indicate which input mode is selected:
Green = OEM Input Mode
Red = AUX Input Mode
The LED can be mounted at the owner’s
discretion in the front of the vehicle, using the
supplied mounting grommet. To mount the LED,
first ensure that sufficient clearance exists for the
LED body and leads behind the mounting surface.
Then, drill a 8mm diameter hole in the mounting
surface. Insert the LED from behind the mounting
surface (without attaching the mounting grommet).
Snap the mounting grommet over the LED body
and insert it into the hole you have drilled until flush.
Once the LED and Master Volume Control are
mounted, connect the Master Volume Control
harness to the “CONTROL CONNECTOR” port
on the CL441dsp main processor. If the cable length
is insufficient, use the supplied extension cable.