JL Audio CL441 dsp Owners Manual

CleanSweep™฀CL441dsp฀

OEM฀Interface฀/฀Processor

o wn er ’ s ฀m an ua l

Thank฀you฀for฀purchasing฀a฀JL฀Audio฀CleanSweep™฀฀

OEM฀interface฀/฀processor฀for฀your฀automotive฀sound฀system.฀

This฀product฀has฀been฀designed฀and฀manufactured฀to฀exacting฀

standards฀in฀order฀to฀ensure฀years฀of฀musical฀enjoyment฀in฀your฀

vehicle.฀For฀maximum฀performance฀and฀extended฀warranty฀฀

coverage,฀we฀highly฀recommend฀that฀you฀have฀your฀CL441dsp฀

installed฀by฀an฀authorized฀JL฀Audio฀dealer.฀฀Your฀authorized฀฀

dealer฀has฀the฀training,฀expertise฀and฀installation฀equipment฀to฀ensure฀

optimum฀performance฀from฀this฀product฀without฀compromising฀

your฀vehicle’s฀functionality.฀Due฀to฀the฀complexity฀of฀modern฀vehicle฀

systems฀we฀do฀not฀recommend฀self-installation฀unless฀you฀have฀

extensive฀experience฀in฀automotive฀electrical฀systems.฀

If฀you฀have฀any฀questions฀regarding฀the฀instructions฀in฀this฀฀

manual฀or฀any฀aspect฀of฀the฀product’s฀operation,฀please฀contact฀

your฀authorized฀JL฀Audio฀dealer฀for฀assistance.฀If฀you฀need฀further฀

assistance,฀please฀call฀the฀JL฀Audio฀Technical฀Support฀Department฀at฀

(954)฀443-1100฀during฀business฀hours฀(Eastern฀Time฀Zone).

SERIAL฀NUMBER฀฀

In฀the฀event฀that฀your฀CleanSweep™฀CL441dsp฀

requires฀service฀or฀is฀ever฀stolen,฀you฀will฀need฀to฀

have฀a฀record฀of฀the฀product’s฀serial฀number.฀Please฀

take฀the฀time฀to฀enter฀that฀number฀in฀the฀space฀

provided฀below.฀฀The฀serial฀number฀can฀be฀found฀on฀

the฀bottom฀panel฀of฀the฀unit฀and฀on฀the฀packaging.

Serial฀Number:฀

PROTECT฀YOUR฀HEARING!฀

We฀value฀you฀as฀a฀long-term฀customer.฀For฀

that฀reason,฀we฀urge฀you฀to฀practice฀restraint฀in฀

the฀operation฀of฀this฀product฀so฀as฀not฀to฀damage฀

your฀hearing฀and฀that฀of฀others฀in฀your฀vehicle.฀

Studies฀have฀shown฀that฀continuous฀exposure฀to฀

high฀sound฀pressure฀levels฀can฀lead฀to฀permanent฀

(irreparable)฀hearing฀loss.฀฀Automotive฀audio฀

systems฀are฀capable฀of฀producing฀such฀high฀sound฀

pressure฀levels.฀Please฀limit฀your฀continuous฀

exposure฀to฀high฀volume฀levels.

While฀driving,฀operate฀your฀audio฀system฀in฀a฀

manner฀that฀still฀allows฀you฀to฀hear฀necessary฀noises฀

to฀operate฀your฀vehicle฀safely฀(horns,฀sirens,฀etc.).

INSTALLATION฀APPLICATIONS

This฀product฀is฀designed฀for฀operation฀in฀

vehicles฀with฀12V,฀negative-ground฀electrical฀

systems.฀Use฀of฀this฀product฀in฀vehicles฀with฀

positive฀ground฀and/or฀voltages฀other฀than฀12V฀

may฀result฀in฀damage฀to฀the฀product฀and฀will฀void฀

the฀warranty.

This฀product฀is฀not฀certified฀or฀approved฀฀

for฀use฀in฀aircraft.

PLANNING฀YOUR฀INSTALLATION

It฀is฀important฀that฀you฀take฀the฀time฀to฀฀

read฀this฀manual฀and฀that฀you฀plan฀out฀your฀฀

installation฀carefully.฀

Safety฀Considerations:฀

Your฀CleanSweep™฀needs฀to฀be฀installed฀in฀a฀

dry฀environment฀and฀in฀a฀manner฀which฀does฀not฀

interfere฀with฀your฀vehicle’s฀safety฀equipment฀(air฀

bags,฀seat฀belt฀systems,฀ABS฀brake฀systems,฀etc.).฀

You฀should฀also฀take฀the฀time฀to฀securely฀mount฀

the฀CleanSweep™฀processor฀using฀the฀supplied฀

screws฀so฀that฀it฀does฀not฀come฀loose฀in฀the฀event฀

of฀a฀collision฀or฀sudden฀acceleration฀/฀deceleration.

Stupid฀Mistakes฀to฀Avoid:

•฀฀Check฀before฀drilling฀any฀holes฀in฀your฀vehicle฀to฀

make฀sure฀that฀you฀will฀not฀be฀drilling฀through฀a฀

gas฀tank,฀brake฀line,฀wiring฀harness฀or฀other฀vital฀

vehicle฀system.

•฀฀Do฀not฀run฀system฀wiring฀outside฀or฀underneath฀

the฀vehicle.฀This฀is฀an฀extremely฀dangerous฀

practice฀which฀can฀result฀in฀severe฀damage฀to฀

your฀vehicle฀and฀person.

•฀฀Protect฀all฀system฀wires฀from฀sharp฀metal฀฀

edges฀and฀wear฀by฀carefully฀routing฀them,฀฀

tying฀them฀down฀and฀using฀grommets฀and฀฀

loom฀where฀appropriate.

•฀฀Do฀not฀mount฀this฀product฀in฀the฀engine฀

compartment,฀under฀the฀vehicle,฀on฀the฀฀

roof฀or฀in฀any฀other฀area฀that฀will฀expose฀it฀฀

to฀the฀elements.฀

2฀JL฀AUDIO฀CleanSweep™฀CL441dsp

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.฀

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.

JL฀AUDIO฀CleanSweep™฀CL441dsp฀3

POWER฀CONNECTIONS

Before฀installing฀the฀CL441dsp,฀disconnect฀the฀

negative฀(ground)฀wire฀from฀the฀vehicle’s฀battery.฀

This฀will฀prevent฀accidental฀damage฀to฀the฀system,฀

the฀vehicle฀and฀your฀body฀during฀installation.

The฀CL441dsp฀has฀a฀4-pin฀inline฀jack฀located฀

next฀to฀the฀line฀output฀jacks.฀This฀jack฀accepts฀

the฀following฀connections฀(a฀wiring฀harness฀with฀a฀

mating฀plug฀is฀included):

“+12฀V”:฀Constant฀+12V

“GND”:฀Chassis฀Ground

“IGN”:฀Switched฀+12V฀

“REM.OUT”:฀Amplifier฀turn-on฀(+12V)

Since฀the฀CL441dsp฀does฀not฀draw฀very฀much฀

current฀during฀operation,฀18฀AWG฀-฀16฀AWG฀

wire฀is฀ample฀for฀making฀all฀of฀these฀connections.฀

Use฀good-quality฀crimp฀connectors฀(or฀solder฀and฀

heatshrink฀tubing)฀to฀join฀the฀harness฀leads฀to฀any฀

extended฀wires.฀฀Any฀wires฀run฀through฀metal฀

barriers฀(such฀as฀firewalls),฀must฀be฀protected฀with฀

a฀high฀quality฀rubber฀grommet฀to฀prevent฀damage฀

to฀the฀insulation฀of฀the฀wire.฀Failure฀to฀do฀so฀may฀

result฀in฀a฀dangerous฀short฀circuit.

Ideally,฀the฀“+12V”฀(constant)฀and฀“GND”฀

(chassis฀ground)฀connections฀should฀be฀run฀to฀

the฀same฀distribution฀points฀that฀the฀amplifiers฀

use฀for฀their฀power฀and฀ground฀connections.฀This฀

minimizes฀the฀possibility฀of฀noise฀in฀the฀system.

The฀“IGN”฀connection฀is฀designed฀to฀do฀the฀

following:฀the฀CL441dsp฀will฀only฀turn฀on฀when฀

+12V฀is฀present฀at฀this฀connection.฀Conversely,฀

the฀CL441dsp฀will฀shut฀off฀as฀soon฀as฀+12V฀is฀

removed฀from฀this฀connecton.฀We฀recommend฀

that฀you฀connect฀this฀wire฀to฀a฀12฀volt฀circuit฀in฀

the฀car฀that฀is฀only฀energized฀with฀the฀key฀in฀the฀

“Accessory”฀(ACC)฀or฀“Ignition”฀(IGN)฀positions.฀

Since฀the฀CL441dsp฀is฀designed฀to฀control฀the฀rest฀

of฀the฀aftermarket฀system’s฀turn-on฀and฀turn-off฀

functions,฀this฀will฀ensure฀that฀the฀audio฀system฀

will฀only฀operate฀with฀the฀key฀in฀ACC฀or฀IGN฀

positions.฀See฀“Signal฀Sense฀Modes”฀section฀on฀

Page฀9฀for฀further฀options.

The฀“REM.OUT”฀(Remote฀Output)฀connection฀

provides฀turn-on฀voltage฀to฀other฀aftermarket฀

equipment฀(just฀like฀an฀aftermarket฀head฀unit’s฀

remote฀turn-on฀lead).

FUSE฀REQUIREMENTS

The฀+12V฀constant฀wire฀on฀the฀CL441dsp฀

power฀harness฀has฀an฀inline฀1฀amp,฀fast฀blow฀AGC฀

(small฀glass-bodied)฀fuse฀for฀protection฀of฀the฀

unit.฀Do฀not฀remove฀this฀fuse฀or฀replace฀it฀with฀a฀

different฀value฀of฀fuse.

OUTPUT฀CONNECTIONS

Four฀RCA-type฀jacks฀provide฀four-channels฀

of฀analog฀audio฀output฀to฀feed฀your฀aftermarket฀

system.฀These฀are฀located฀next฀to฀the฀“Power฀

Connector”฀and฀are฀clearly฀labeled฀for฀each฀channel.฀

Think฀of฀them฀as฀your฀new฀head฀unit฀outputs.

4฀JL฀AUDIO฀CleanSweep™฀CL441dsp

OUTPUT฀AND฀POWER฀CONNECTION฀DIAGRAM฀

JL฀AUDIO฀CleanSweep™฀CL441dsp฀5