JL Audio ClenSweep CL441 dsp, Owner'S Manual, Page: 10 / 16

10 JL AUDIO CleanSweep ™ CL441dsp 10 JL AUDIO CleanSweep ™ CL441dsp
USING YOUR NEW AUDIO SYSTEM
The “Audiophile Method”:
For best audio performance you will want to
use the CL441dsp’s Master Volume Control as
your main system volume knob for all sources.
This will maintain linear frequency response at all
volume levels and the best possible signal-to-noise
performance.
Once the CL441dsp is installed and calibrated,
make a note of the specific volume position you
used on the OEM source unit to calibrate the
CL441dsp. From now on, you will operate your
audio system with the OEM control set at this
level. Most source units provide a numerical or
graphic representation of the volume position
on their display. If yours does not, you will simply
need to estimate the position using minimum or
maximum as a reference point and remembering
the degree of rotation from that point.
Leaving the OEM volume control at the
calibration level, you will use the Master Volume
Control for volume adjustment, but you may
continue to use the OEM source unit’s tone
controls, fader and balance controls, if desired.
To select the AUX input, simply press down
on the Master Volume Control Knob. The Source
Indicator LED lights Green for the OEM source
and Red for the AUX source. If no AUX source
unit is connected, the system will mute when
AUX is selected (so, if you’re ever sitting there
wondering what happened to your sound, chances
are you need to press the knob to re-engage the
OEM Input.)
10) If you see steady green lights, you can
now proceed to set your amplifier input
sensitivities (handy test tones are included
for this purpose on the CleanSweep™
Calibration CD). Then, balance your
amplifier channels to taste.
11) If an AUX source is connected, use the
“AUX INPUT Level Trim” controls on the
top of the CL441dsp to adjust the level
of the AUX source so that it matches the
level of the OEM source and so that both
channels of the AUX source are properly
balanced. Use similar music or test tones
playing through each source unit for best
results. If the “CLIP” indicator lights flash or
light continuously, reduce the level until they
no longer light up.
12) That’s it! You’re now ready to enjoy
great sound.
EQ DEFEAT MODE
If you would like to verify the effect of the
CL441dsp’s OEM equalization function, you can
press the “EQ DEFEAT” button on the top of the
unit when it is in OEM Input mode.
In “EQ DEFEAT” mode, the channel status
LED’s will flash green and the CL441dsp’s response
correction is bypassed, allowing you to hear the
raw response of the OEM audio source. The
Defeat Mode will stay engaged for up to five
minutes or until you press the “EQ DEFEAT”
button again.
Important Notice for All Users!
Keep in mind that any audible OEM functions that depend on the OEM audio
system will only be audible when the OEM Input is engaged. Driver assistance
systems (like OnStar®), navigation systems, and door chimes on some vehicles are
examples of such functions. If these functions are important to your current driving
situation, do not use the AUX input.