JL Audio ClenSweep CL441 dsp, Owner'S Manual

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JL AUDIO CleanSweep ™ CL441dsp 3
3) The digitally corrected signals are then
converted back to analog audio and sent
to your aftermarket amplifiers through two
pairs of low-distortion, 8 volt (RMS) line-
level outputs.
4) The CL441dsp provides a simple rotary
knob with stops at both ends to control
the master system volume at the outputs
of the processor unit for the OEM (factory)
source and the Auxiliary source. The
master volume eliminates the effects of any
equalization that is dependent on the OEM
volume control position and allows a high
signal-to-noise ratio to be maintained in the
system. When pressed, the Master Volume
Control also selects between the OEM and
Auxiliary source. A dash-mountable status
LED changes color to indicate OEM or AUX
input modes. These small items can be easily
mounted within reach of the driver.
5) The CL441dsp can be deployed in signal-
sensing mode, powering up and providing
a 12-volt turn-on signal for aftermarket
equipment whenever signal is detected.
It can also be activated by a conventional
12-volt trigger, if the OEM system
provides one.
PRODUCT OVERVIEW
The CleanSweep™ CL441dsp is a sophisticated
digital audio processor that performs the
following functions:
1) It accepts virtually any analog audio signal,
from low-voltage line-level to high-power,
amplified speaker-level, via its four differential-
balanced inputs. With totally automatic level
compensation, the CL441dsp converts the
two or four connected analog signals to digital
audio with 24 bit effective resolution.
2) The CL441dsp applies its 32-bit SHARC®
DSP processor to automatically equalize
each of the four channels with 30 bands of
equalization (120 bands total), effectively
correcting the response of almost any
factory-equalized, full-range signal. These
digital-domain corrections will range from
subtle to dramatic, depending on the degree
of equalization engineered into the factory
audio system.
To accomplish this complex feat, you
simply load the supplied CleanSweep™
Calibration CD into the factory-installed
CD player, set its volume control between
1/2 and 3/4 of maximum, play the
designated calibration track and then press
the “Calibrate” button on the top of the
CL441dsp processor. Approximately 20
seconds later, the processor is finished
analyzing and equalizing the factory-installed
source’s response and stores the corrections
in non-volatile flash memory.