JL Audio 1000-1 User Manual

Size:
384.7 Kb
Download

JL AUDIO 1000/1 monoblock subwoofer amplifier

o w n e r ’ s m a n u a l

Thank you for purchasing a JL Audio amplifier for your automotive sound system.

Your amplifier 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 new amplifier installed by an authorized JL Audio dealer. Your authorized dealer has the training, expertise and installation equipment to ensure optimum performance from this product. Should you decide to install the amplifier yourself, please take the time

to read this manual thoroughly so as to familiarize yourself with its installation requirements and setup procedures.

If you have any questions regarding the instructions in this manual or any aspect of your amplifier’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) 443-1100during business hours (Eastern Time Zone).

PROTECTYOUR HEARING!

We value you as a long-termcustomer. 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.This and all other highpower amplifiers are capable of producing such high sound pressure levels when connected to a speaker system. 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.).

SERIAL NUMBER

In the event that your amplifier 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 amplifier and on the amplifier packaging.

Serial Number:

_______________________________

INSTALLATION APPLICATIONS

This amplifier is designed for operation in vehicles with 12V, negative-groundelectrical 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.

Do not attempt to “bridge” the outputs of this amplifier with the outputs of a second amplifier, including an identical one.

PLANNINGYOUR INSTALLATION

It is important that you take the time to read this manual and that you plan out your installation carefully.The following are some considerations that you must take into account when planning your installation.

Cooling Efficiency Considerations:

Your JL Audio amplifier employs an advanced type of heat management, called RealSink™.This feature takes advantage of convection and radiation effects to remove heat from the amplifier circuitry. For optimum cooling performance, the vertical heat sinks located at the back of the amplifier should be exposed to as large a volume of air as possible. Enclosing the amplifier in a small, poorly ventilated chamber can lead to excessive heat build-upand degraded performance. If an installation calls for an enclosure around the amplifier, we recommend that this enclosure be ventilated with the aid of a fan. In normal applications,fan-coolingis not necessary, but you still need to follow some basic guidelines:

Amplifier mounted vertically with heat sink fins pointing up: Optimum

Amplifier mounted horizontally, right side up: Good

Amplifier mounted horizontally, but upside down: Fair (not recommended if there is less than 1 inch (2.5 cm) clearance above the amplifier heat sinks)

Amplifier mounted vertically with heat sink fins pointing laterally: Fair

Amplifier mounted vertically with heat sink fins pointing down: Poor (not recommended)

If mounting the amplifier under a seat, make sure there is at least 1 inch (2.5 cm) of space above the amplifier heat sink fins to permit proper cooling.

Safety Considerations:

Your amplifier needs to be installed in a dry, well-ventilatedenvironment 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 amplifier using the supplied screws so that it does not come loose in the event of a collision or a sudden jolt to the vehicle (20 lbs. of aluminum traveling at 60 MPH will hurt you).

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 the amplifier in the engine compartment, under the vehicle, on the roof

or in any other area that will expose the amplifier circuitry to the elements.

 

 

 

 

 

 

 

Selects Low-Pass

Parametric EQ

 

 

 

 

 

 

Input Voltage

 

 

 

 

 

Chassis Ground

 

 

or High-PassMode

"Q" (Bandwidth

 

Parametric EQ

 

 

 

Reverses Polarity

 

 

 

Connector

 

 

for Output Filter

Selection Control

 

Boost Control

 

 

Range Selector

 

of Amp Output

 

 

 

 

(pg. 5)

 

 

 

(pg. 8)

(pg. 9)

 

 

 

(pg. 9)

 

 

(pg. 6)

 

(pg. 10)

 

 

 

 

 

 

 

 

Preamp Output

 

 

 

Parametric EQ

 

Amplifier Low-Pass

 

 

 

Positive

Negative

+12 V Power

 

Remote Turn-On

Preamp Output

Filter Slope

Infrasonic Filter

 

Center Frequency

 

 

Filter Slope

 

Input Sensitivity

Subwoofer

Subwoofer

Connector

 

Connector

Mode Selector

Selector

Defeat Switch

 

Selection Control

 

Selection / Defeat

 

Control

Outputs

Outputs

(pg. 5)

 

(pg. 6)

(pg. 8)

(pg. 8)

 

(pg. 9)

 

 

(pg. 9)

 

 

(pg. 7)

 

 

(pg. 7)

(pg. 10)

(pg. 10)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12VDC Ground Remote

Low/High

Left and Right

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Left and Right

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bass EQ

 

Jack for

 

 

 

Selects Output Filter

 

Selects Infrasonic

 

 

 

Selects Low-Pass

Preamp Output Jacks

Cutoff Frequency

 

Filter Cutoff

Defeat Switch

Remote Bass

 

Filter Frequency for

Input Jacks

(pg. 8)

(pg. 8)

 

Frequency

 

(pg. 9)

Control Knob

 

Amplifier Channel

(pg. 6)

 

 

 

 

 

(pg. 9)

 

 

 

 

 

 

(pg. 9)

 

(pg. 8)

 

2

JL AUDIO 1000/1

JL AUDIO 1000/1

3

PRODUCT DESCRIPTION

The JL Audio 1000/1 is a monoblock subwoofer amplifier utilizing proprietary and patented Class D technology. Its frequency response is limited to the range below 250 Hz. It is not designed

for driving midrange speakers or tweeters. Every aspect of its operation has been optimized for low-frequencyamplification. For detailed

specifications, please refer to Appendix E (page 21).

TYPICAL INSTALLATION SEQUENCE

The following represents the sequence for a typical amplifier installation, using an aftermarket source unit. Additional steps and different procedures may be required in some applications. If you have any questions, please contact your authorized JL Audio dealer for assistance.

1) Disconnect the negative battery post connection and secure the disconnected cable to prevent accidental re-connectionduring installation.

This step is not optional!

2)Run power wire (minimum 4 AWG) from the battery location to the amplifier mounting location, taking care to route it in such a way that it will not be damaged and will not interfere with vehicle operation. Use 2 AWG or 1/0 AWG power wire if additional amplifiers are being installed with the 1000/1.

3)Connect power wire to the positive battery post. Fuse the wire with an appropriate fuse block (and connectors) within 18 inches (45 cm) wire length of the positive battery post. This fuse is essential to protect the vehicle. Do not install the fuse until the power wire has been connected to the amplifier.

4)Run signal cables (RCA cables) and remote turn-onwire from the source unit to the amplifier mounting location.

5)Run speaker wire from the speaker system to the amplifier mounting location.

6)Find a good, solid metal grounding point close

to the amplifier and connect the negative power wire to it using appropriate hardware. Use the same size power wire as the wire connected to the

“+12V” connection (min. 4 AWG), no longer than 36 inches (90 cm) from the amplifier to the ground connection point. In some vehicles, it may be necessary to upgrade the battery ground wire. (See page 5 for important notice).

7)Securely mount the amplifier using the supplied screws.

8)Connect the positive and negative power wires to the amplifier. A fuse near the amplifier is not necessary.

9)Connect the remote turn-onwire to

the amplifier.

10)Connect the RCA input cables to the amplifier.

11)Connect the speaker wires to the amplifier.

12)Carefully review the amplifier’s control settings to make sure that they are set according to the needs of the system.

13)Install power wire fuse (100A for a single 1000/1) and reconnect the negative battery post terminal.

14)Turn on the source unit at a low level

to double-checkthat the amplifier is configured correctly. Resist the temptation to crank it up until you have verified the control settings.

15)Make necessary adjustments to the input sensitivity control to obtain the right overall output and the desired balance between the subwoofer output and the satellite (mid and high-frequency)output. See Appendix B (page 14) for the recommended input sensitivity setting method.

16)Enjoy the fruits of your labor with your favorite music.

POWER CONNECTIONS

Before installing the amplifier, disconnect the negative (ground) wire from the vehicle's battery. This will prevent accidental damage to the system, the vehicle and your person during installation.

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.

+12VDC Ground Remote

! IMPORTANT

Many vehicles employ small (10 AWG - 6 AWG) wire to ground the battery to the

vehicle chassis and to connect the alternator's positive connection to the battery.To prevent

voltage drops, these wires should be upgraded to 4 AWG (or larger) when installing amplifier

The 1000/1's “+12 VDC” and “Ground”

systems with total fuse ratings exceeding 60A.

connections are designed to accept 4 AWG power

 

wire. 4 AWG is the only recommended

FUSE REQUIREMENTS

power wire size for this amplifier.

It is absolutely vital that the main power

If you are installing the 1000/1 with other

lead to the amplifier(s) in the system be fused

amplifiers and wish to use a single main power wire,

within 18 inches (45 cm) of the positive battery

use 2 AWG or 1/0 AWG main power wire

post connection.The fuse value at each power

(depending on the overall current demands of all

wire should be high enough for all of the

the amplifiers in the system).This 2 AWG or

equipment being run from that power wire.

1/0 AWG power wire should terminate into a

If only the 1000/1 is being run from that power

distribution block mounted as close to the amplifiers

wire, we recommend a 100A ANL (large blade-

as possible and should connect to the 1000/1 with

type fuse pictured below) be used.

4 AWG power wire.

 

Please note that smaller AWG numbers mean

 

bigger wire and vice-versa(1/0 AWG is biggest,

 

2 AWG is smaller, then 4 AWG, then 8 AWG, etc.).

 

To connect the power wires to the amplifier,

No fuse is required directly before the amplifier

first back out the set screw on the top of the

power connection. If one is desired at this

amplifier, using the supplied 2.5 mm hex wrench.

location, we recommend the use of a 100A ANL

Strip 1/2 inch (12 mm) of insulation from the end

fuse for each 1000/1.

of each wire and insert the bare wire into the

 

receptacle on the front panel of the amplifier,

 

seating it firmly so that no bare wire is exposed.

 

While holding the wire in place, tighten the set

 

screw firmly, taking care not to strip the head

 

of the screw.

 

The ground connection should be made using

 

the same gauge wire as the power connection

 

and should be kept as short as possible, while

 

accessing a solid piece of sheet metal in the vehicle.

 

The surface of the sheet metal should be sanded at

 

the contact point to create a clean, metal-to-metal

 

connection between the chassis and the termination

 

of the ground wire.The use of a star washer to lock

 

down the connection is advisable.

 

4

JL AUDIO 1000/1

JL AUDIO 1000/1

5

REMOTE TURN-ON

AMPLIFIER INPUT SECTION

 

 

 

 

CROSSOVER CONTROLS

The 1000/1 uses a conventional +12V remote

 

The 1000/1 employs a differential-balanced

window. If you are using an aftermarket source

Crossovers are groups of individual electronic filters

turn-onlead, typically controlled by the source unit's

input topology that provides the user with a high

unit, with conventional preamp-leveloutputs, this

which allow only certain frequency ranges to pass

remote turn-onoutput.The amplifier will turn on

degree of input flexibility while retaining superior

is most likely the position that you will use.

through them by attenuating frequencies outside

when +12V is present at its “Remote” input and

noise rejection.This type of circuit also allows the

 

The “High” position on the “Input Voltage”

the selected range.These filters allow the user to

turn off when +12V is switched off. If a source unit

1000/1 to accept high-voltageinputs from factory

switch selects an input sensitivity range between

specify what frequency range will be sent out of

does not have a dedicated remote turn-onoutput,

source unit outputs without excessive distortion

800mV and 8V. This is useful for certain high-

each channel section of the amplifier.This, in turn,

the amplifier’s turn-onlead can be connected to

or noise problems.

output preamp level signals as well as speaker-level

allows each speaker system to only reproduce a

+12V via a switch that derives power from an

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

output from source units and small amplifiers.To

range of frequencies it is well-suitedfor, resulting in

ignition-switchedcircuit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

use speaker-levelsources, splice the speaker output

reduced distortion and improved fidelity.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The 1000/1's “Remote” turn-onconnector is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wires of the source unit or small amplifier onto a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

designed to accept 12 AWG – 8 AWG wire.

 

 

 

 

 

 

 

 

 

 

Low/High

 

 

 

 

 

pair of RCA cables or plugs.

AMPLIFIER LOW-PASSFILTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 AWG is more than adequate for this purpose.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The 1000/1 employs a sophisticated, state-variable,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To connect the remote turn-onwire to the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

!

IMPORTANT

 

low-passactive filter for its internal channel.This

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The output of the amplifier will decrease for a

amplifier, first back out the set screw on the top of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

feature is designed to attenuate frequencies above its

the amplifier, using the supplied hex wrench. Strip

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

given input voltage when the “Input Range” switch

filter frequency, so that the system's subwoofers do

1/2 inch (12mm) of wire and insert the bare wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is placed in the “High” position. Conversely, the

not reproduce any audible midrange content.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

into the receptacle on the front panel of the

 

1) Input Connections: A standard left/right

output will be higher with the switch in the “Low”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

amplifier, seating it firmly so that no bare wire is

pair of RCA type jacks is used for input on

position.While this may sound counter-intuitive,it is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

exposed. Smaller wire than 12 AWG can be used,

the 1000/1.You may run a stereo or a mono

consistent with the descriptions above.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

but it may be necessary to strip 1 inch of insulation

signal into the inputs of the amplifier.The

 

3) Input Sensitivity Adjustment: Located next to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

from the wire and fold the bare wire in half prior to

amplifier's input section automatically sums

the “Input Voltage” switch, in the “Amplifier Input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

insertion.While holding the wire in the terminal,

stereo signals to mono for the internal amplifier

Section”, is a rotary control labeled “Input Sens.”.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tighten the set screw firmly, taking care not to strip

section and for the “LP” “Filter Mode” of the

Once the appropriate “Input Voltage” range has

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the head of the screw and making sure that the

“Preamp Output” section.

been selected, this rotary control can be used to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wire is firmly gripped by the set screw.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

match the source unit's output voltage to the input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

!

IMPORTANT

 

 

 

 

 

 

 

 

stage of the amplifier for maximum clean output.

1) Filter Operation: The low-passfilter in the

 

 

If you plan to use the “Preamp Output” of the

 

 

Rotating the control clockwise will result in higher

1000/1 is fully variable between 40 Hz and 200 Hz

 

1000/1 to feed a stereo amplifier, you must connect

sensitivity (louder for a given input voltage).

via the “Filter Freq.” control knob and features the

 

a stereo signal to the input of the amplifier. A mono

Rotating the control counter-clockwisewill result in

ability to select between a moderate “12dB” per

 

signal into the amplifier will result in a mono signal

lower sensitivity (quieter for a given input voltage).

octave or a steep “24dB” per octave slope via the

 

out of the preamp output. (It's a great amplifier, but

 

To properly set the amplifier for maximum clean

“Mode/Slope” switch.

 

it doesn't do magic).

output, please refer to Appendix B (page 14) in this

Depending on the subwoofer system and the

 

 

The amplifier will operate with only one input

manual. After using this procedure, you can then

vehicle, different slopes may be required to produce

 

connection (left or right), but will require an

adjust the level of the amplifier by adjusting the

a smooth transition to the mid-bassspeakers in the

 

increase in input sensitivity to overcome the loss

input sensitivity downward, if the amplifier requires

system. Experiment to find the slope which best

 

of signal. If a mono input signal is to be run, we

attenuation to achieve the desired system balance.

matches the acoustic requirements of your system.

 

recommend that you use a “Y-adaptor”to split the

 

Do not increase the “Input Sens.” setting for

Hint: A trunk mounted sub whose output has to

 

mono signal into both inputs of the amplifier.

any amplifier in the system beyond the maximum

"fight" through a rear deck or a back seat often

 

 

2) Input Voltage Range: A wide range of signal

level established during the procedure outlined

benefits from the 12 dB/octave slope which lets

 

input voltages can be accommodated by the

in Appendix B (page 14). Doing so will result in

more upper bass content pass through. A sub that

 

1000/1's input section (200mV – 8V).This wide

audible distortion and possible speaker damage.

fires directly into the listening environment is more

 

range is split up into two sub-ranges,accessible via

 

 

 

 

likely to benefit from a 24 dB/octave slope.

 

switches located in the “Amplifier Input Section”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

of the amplifier.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The “Low” position on the “Input Voltage”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

switch selects an input sensitivity range between

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200mV and 2V. This means that the “Input Sens.”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

rotary control will operate within that voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

JL AUDIO 1000/1

JL AUDIO 1000/1

7

 

PREAMP OUTPUT SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The above hint is not “set-in-stone”…

The 1000/1 incorporates a flexible preamp

 

This is completely independent of the amplifier’s

 

If you would like to select the infrasonic filter

You should always listen to the system carefully to

output section, designed to make multiple amplifier

internal filter and allows the user to match, stagger

frequency with a higher level of precision, consult

determine the best choice as vehicle acoustics and

systems easy to set up.

or overlap the subwoofer low-passfilter frequency

Appendix A: Chart A-3(page 13) of this manual.

other factors play a big role in choosing the most

The Preamp output can be configured in three

of the amplifier crossover with the output filter’s

 

The infrasonic filter can be completely defeated

appropriate filter slope.

different “Output Modes”:

frequency for precise control and optimized

by selecting the “Off” position on the “Mode”

2) Precise Frequency Selection: The filter

 

 

 

 

 

 

 

 

 

 

 

 

midbass performance.

switch.This bypasses all signal from flowing

frequency markings on the front panel of the

 

 

 

 

 

 

 

 

 

 

 

 

 

If you would like to select the filter frequency

through the circuit.

 

 

 

 

 

 

 

 

 

 

 

 

 

amplifier are for reference purposes and are

 

 

 

 

 

 

 

 

 

 

 

 

with a higher level of precision, consult

 

2) Parametric Bass Equalizer: The parametric

generally accurate to within 1/3 octave or better.

 

 

 

 

 

 

 

 

 

 

 

 

Appendix A: Chart A-2(page 12) of this manual.

equalizer allows the used to select the center

 

 

 

 

 

 

 

 

 

 

 

 

If you would like to select the filter frequency with

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

frequency of the boost band as well as the

a higher level of precision, consult Appendix A:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bandwidth (“Q”) of the boost band.

Chart A-1(page 12) of this manual.This chart

 

 

 

 

 

 

 

 

 

 

 

 

 

!!

CAUTION

 

 

 

 

 

 

 

 

 

 

 

 

 

The “Q" control selects the bandwidth of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The signal level of the “Preamp Output” is

 

gives you a more accurate frequency for each of

 

 

 

 

 

 

 

 

 

 

 

 

 

boost around the center frequency. Lower numbers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the forty detented positions of the frequency

 

 

 

 

 

 

 

 

 

 

 

 

affected by the setting of the “Input Voltage Range”

pertain to wider bandwidths while higher number

1) “Full-Range”:This is apass-throughmode

selection control.This method can be very useful if

switch (of the input section chosen by the

pertain to narrower bandwidths.

the amplifier is mounted in a location where you

for the preamp output, delivering the same signal

“Signal From” switch). See Appendix B (page 14)

 

The “Center Freq.” control selects the center

can’t see the front panel markings easily.

that is being fed to the “Amplifier Input Section”

for details on “Input Voltage” settings. All “slave”

frequency of the boost bandwidth within a range of

3) Defeating the Amplifier Filter: The Low-

(If the input signal is full-range,the preamp output

amplifiers should get this switch set to “Low”.

20 - 80 Hz. If you would like to select the filter

Pass filter can also be defeated completely, by

will be full-range).Thissignal is not affected by the

See Appendix C (page 16) for details.

frequency with a higher level of precision, consult

switching the “Mode/Slope” switch to the “Off”

“Advanced Bass Control” processing selected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Appendix A: Chart A-4(page 13) of this manual.

position.This is useful if you are using an external

for the amplifier.

ADVANCED BASS CONTROL SECTION

 

The “Boost” control determines how much

active crossover in the system. Keep in mind that

2) “Amp Filter”: The preamp output delivers

 

The 1000/1 includes a versitile bass processing

boost (in dB) you are adding to the bass signal.

turning the internal crossover off also defeats the

the same signal that is feeding the 1000/1’s

section consisting of two primary components: a

A range of 0 - 15dB of boost is available.

“Advanced Bass Control” section processing

amplifier section, including all the processing

fully variable, 24 dB per octave infrasonic filter and a

 

The “Remote Bass Port” allows the connection

(see page 9 for details). With the internal

induced by the “Amp LP Filter” and “Advanced

parametric, single-bandequalizer.

of an optional remote boost knob (the RBC-1)

crossover turned off, the 1000/1’s upper

Bass Control” sections. This is primarily used for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

that can be mounted in the front of the vehicle.

frequency response limit is 250 Hz, due to its

running additional 1000/1’s in a “Slave”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This optional control takes the place of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bass-specificClass D design.

configuration from the “Master” amplifier. For

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“Boost” knob on the amplifier when connected

 

detailed information on Master/Slave

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and bypasses the “Boost” control on the amplifier.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

configurations, see Appendix C (page 16). If the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“Output Mode” switch is in the “Amp Filter”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

!

IMPORTANT

 

 

position and the “Amp LP Filter” switch is in the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The “Advanced Bass Control” section will only

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“Off” position, there will be no output from the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

operate when the amplifier's filter is activated with

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

preamp output jacks.The independent output filter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the “Amp LP Filter” switch in the “12dB” or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

controls (“Filter Slope”, “Filter Freq” and “Filter

 

1) “Infrasonic Filter”: The infrasonic filter is a

“24dB” position. It will not work with this switch in

 

Mode”) are inactive in “Amp Filter” mode.

24 dB/octave high-passfilter, with a fully variable

the “Off” position.This is to prevent cascading the

 

3) “Out Filter”: The preamp output is filtered by

cutoff frequency between 15 - 60 Hz.When set at

processing of multiple amplifiers when configured

 

a fully variable, active filter incorporated into the

frequencies lower than 30 Hz, it conserves amplifier

in a master/slave arrangement as shown in

 

output section and is not affected by the bass

power without audibly affecting the quality of the

Appendix C (page 16). If you are using an external

 

control processing selected for the amplifier.

sub-bassoutput. If set at frequencies higher that

active crossover and would like to use the

 

In “Out Filter” mode, the user can select:

30 Hz, there will be an audible effect, but one which

“Advanced Bass Control” features, set the

 

a) High-pass(“HP”) orlow-pass(“LP”) filtering by

may be desirable for SPL competition purposes or

“Amp LP Filter” switch on “12dB” and rotate the

 

way of the “Filter Mode” switch.

curve shaping of a bottom-heavysystem.

frequency selection knob fully clockwise to the

 

b) 12 dB/octave or 24 dB/ octave filter slope by way

 

With ported enclosures, the use of the

“200 Hz” position.This will activate the “LF Boost”

 

of the “Filter Slope” switch.

infrasonic filter is highly recommended to protect

and “Infrasonic Filter” controls without significantly

 

c) A filter cutoff frequency between 40 - 200 Hz for

the speaker(s) from excessive excursion below

affecting the crossover point selected by the

 

the preamp output signal by way of the “Filter

box tuning. With sealed enclosures, the use of the

external active crossover.

 

Control” switch.

filter is less necessary, but can still help protect the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

speaker system.

 

 

 

 

8

JL AUDIO 1000/1

JL AUDIO 1000/1

9

SUBWOOFER OUTPUT

The 1000/1 employs JL Audio's exclusive Regulated, Intelligent Power Supply (R.I.P.S.) design. This sophisticated power supply allows the amplifier to produce its optimum power (1000 watts x 1) over a wide range of speaker impedances.

Unlike conventional amplifiers that require a specific impedance to produce optimum power, the R.I.P.S.-equipped1000/1 gives you the freedom to use a variety of subwoofer configurations that achieve final nominal impedances between

1.5 – 4Ω (without sacrificing power output or sound quality).

The operation of the R.I.P.S. circuitry is entirely automatic and adjusts itself every time the amplifier is turned on according to the lowest impedance present at the speaker load.There are no user controls to configure.The system operates through multiple stages of impedance optimization, choosing the stage most appropriate to the actual impedance of the speaker(s) you connect to it.

! IMPORTANT

If you connect a load higher than 4Ω nominal to the 1000/1, power will drop by half with every doubling of impedance above 4Ω. If you connect a load lower than 1.5Ω nominal to the 1000/1, the amplifier protection circuitry activates a “safe” mode which reduces amplifier power to protect the circuitry from failure (the yellow LED on the top of the amplifier will light to indicate that this has happened). See page 11 for details.

! IMPORTANT

Speaker loads below 1.5Ω nominal are not recommended and may cause the amplifier output to distort excessively.

Speaker connections to the 1000/1 are straightforward and take place at the far right of the front panel.You will notice that there are two

“+” positive connections and two “–”negative

connections.This is to facilitate multiple speaker wiring.The two positive and two negative connections are connected in parallel inside the amplifier. Connecting two speakers, each to one set of positive and negative terminals, will result in a parallel speaker connection. If only connecting one pair of speaker wires, it is not necessary to use both sets of connections.

Do not chassis ground any speakers connected to this or any other JL Audio amplifier. Doing so will cause the amplifier to go into protection and mute the output.

The 1000/1's speaker connectors are designed to accept 12 AWG – 8 AWG wire.

To connect the speaker wires to the amplifier, first back out the set screws on the top of the amplifier, using the supplied 2.5 mm hex wrench. Strip 1/2 inch (12 mm) of insulation from each wire and insert the bare wire end into the receptacles on the front panel of the amplifier, seating them firmly so that no bare wire is exposed. While holding each wire in place, tighten each set screw firmly, taking care not to strip the head of the screw and making sure that the wire is firmly gripped by the set screw.

! IMPORTANT

Do NOT attempt to “bridge” two 1000/1’s or combine their output to a single load in any manner. Doing so will damage the amplifier(s).

! IMPORTANT

Before reconnecting the battery ground and turning the system on, verify that all control settings on the amplifier are set according to the needs of the system.

OUTPUT POLARITY SWITCH

Depending on the distance relationship of the mid-bassspeakers and the subwoofers in a system, it can be desirable to reverse the polarity of the subwoofer system in order to produce a better transition between subwoofer and midbass speaker output.The “Output Polarity” switch allows you to peform this polarity inversion without removing any wires. Simply flip the switch from the “Normal” to the “Reversed” position. Experiment with this switch to determine which polarity produces the best overall bass

performance in your system, listening in particular to the mid-basssmoothness and impact to make your determination.

STATUS INDICATOR LIGHTS /

PROTECTION CIRCUITRY

There are three status indicator lights on the top of the amplifier. These are as follows:

1)“Power” (Green): lights to indicate that the amplifier is turned on and operating normally.

2)“Thermal” (Red): lights to indicate that the amplifier has exceeded its safe operating temperature, putting the amplifier into a selfprotection mode, which reduces the power output of the amplifier. The red light will shut off and the amplifier will return to normal, full-poweroperating mode if the heat sink temperature drops back to a safe level.

3)“Low Ω” (Amber): lights to indicate that the impedance of the speaker load connected to the amplifier is lower than the optimum load impedance range for the amplifier.When this light is on, a protection circuit engages and reduces the power output of the amplifier.The amber indicator will also light when a short-circuitis detected in the speaker wiring (this can be a short between the positive and negative speaker wires or between either speaker wire and the vehicle chassis).

4)“Low V” (Blue): lights to indicate any dip in supply voltage below 8 volts.The blue LED will remain lit longer than the dip duration to better alert the user to the problem. This will be accompanied by a shutdown of the amplifier (green LED will shut off) and a total loss of output. Once the voltage rises above 9 volts, the amplifier will turn itself on. Because voltage

dips occur in rapid succession, the typical behavior will be a cycling of the amplifier on and off, accompanied by flashing of the “Low V” blue LED. If this is happening in your system, you will need to

investigate the cause of the voltage problem.This could be a bad ground on the amplifier, battery or alternator OR a faulty battery/charging system OR a problem with a fuse holder or wire connection.

If you are unsure as to the cause of the problem, please consult your JL Audio dealer or a qualified automotive electrical specialist.

In marginal situations, a 1.0 Farad (or larger) rapid-dischargecapacitor connected in parallel to

the amplifier power connections may minimize short-durationvoltage dips in systems that are having this problem.

Keep in mind that any large amplifier, like the 1000/1, places a very heavy demand on a vehicle’s charging system when operated at its limits.Vehicles with weak charging systems may need to be serviced and/or upgraded to provide ample current to a system including a 1000/1.

For information on troubleshooting this amplifier, refer to Appendix D (page 18).

SERVICINGYOUR JL AUDIO AMPLIFIER

If your amplifier fails or malfunctions, please return it to your authorized JL Audio dealer so that it may be sent in to JL Audio for service.

There are no user serviceable parts or fuses inside the amplifier.The unique nature of the circuitry in the JL Audio amplifiers requires specifically trained service personnel. Do not attempt to service the amplifier yourself or through unauthorized repair facilities.This will not only void the warranty, but may result in the creation of more problems within the amplifier.

If you have any questions about the installation or setup of the amplifier not covered in

this manual, please contact your dealer or the

JL AUDIO Technical Department for assistance:

(954) 443-1100

9:00 AM – 5:30 PM Eastern Time,

Monday – Friday

10

JL AUDIO 1000/1

JL AUDIO 1000/1

11

APPENDIX A:

Precise Frequency Selection

 

CHART A-1

 

 

CHART A-2

 

 

CHART A-3

 

 

CHART A-4

 

AMPLIFIER LOW-PASSFILTER

PREAMP AMP FILTER

INFRASONIC FILTER

EQ CENTER FREQUENCY

Detent

Panel

Actual

Detent

Panel

Actual

Detent

Panel

Actual

Detent

Panel

Actual

Number

Marking

Freq.

Number

Marking

Freq.

Number

Marking

Freq.

Number

Marking

Freq.

Full counter-clockwise:42

Full counter-clockwise:41

Full counter-clockwise:14

Full counter-clockwise:22

01 . . . .

. . . . . . . . . . . . . . . .

. . .42

01 . . . .

. . . . . . . . . . . . . . . .

. . .41

01 . . . .

. . . . . . . . . . . . . . . .

. . .14

01 . . . .

. . . . . . . . . . . . . . . .

. . .22

02 . . . . .

. . . . . . . . . . . . . . . .

. . .42

02 . . . . .

. . . . . . . . . . . . . . . .

. . .41

02 . . . . .

. . . . . . . . . . . . . . . .

. . .14

02 . . . . .

. . . . . . . . . . . . . . . .

. . .22

03 . . . . .

. . . . . . . . . . . . . . . . .

. .42

03 . . . . .

. . . . . . . . . . . . . . . . .

. .41

03 . . . . .

. . . . . . . . . . . . . . . . .

. .14

03 . . . . .

. . . . . . . . . . . . . . . . .

. .22

04 . . . .

. . . . .“40” . . . . . . .

. .42

04 . . . .

. . . . .“40” . . . . . . .

. .42

04 . . . .

. . . . .“15” . . . . . . .

. .14

04 . . . .

. . . . .“20” . . . . . . .

. .22

05 . . . . .

. . . . . . . . . . . . . . . . .

. .43

05 . . . . .

. . . . . . . . . . . . . . . . .

. .42

05 . . . . .

. . . . . . . . . . . . . . . . .

. .15

05 . . . . .

. . . . . . . . . . . . . . . . .

. .22

06 . . . . .

. . . . . . . . . . . . . . . . .

. .44

06 . . . . .

. . . . . . . . . . . . . . . . .

. .43

06 . . . . .

. . . . . . . . . . . . . . . . .

. .15

06 . . . . .

. . . . . . . . . . . . . . . . .

. .24

07 . . . . .

. . . . . . . . . . . . . . . . .

. .46

07 . . . . .

. . . . . . . . . . . . . . . . .

. .44

07 . . . . .

. . . . . . . . . . . . . . . . .

. .16

07 . . . . .

. . . . . . . . . . . . . . . . .

. .24

08 . . . .

. . . . .“45” . . . . . . .

. .47

08 . . . .

. . . . .“45” . . . . . . .

. .45

08 . . . .

. . . . .“18” . . . . . . .

. .17

08 . . . .

. . . . .“25” . . . . . . .

. .25

09 . . . . .

. . . . . . . . . . . . . . . . .

. .49

09 . . . . .

. . . . . . . . . . . . . . . . .

. .47

09 . . . . .

. . . . . . . . . . . . . . . . .

. .17

09 . . . . .

. . . . . . . . . . . . . . . . .

. .26

10 . . . . .

. . . . . . . . . . . . . . . . .

. .50

10 . . . . .

. . . . . . . . . . . . . . . . .

. .48

10 . . . . .

. . . . . . . . . . . . . . . . .

. .18

10 . . . . .

. . . . . . . . . . . . . . . . .

. .27

11 . . . . .

. . . . . . . . . . . . . . . . .

. .52

11 . . . . .

. . . . . . . . . . . . . . . . .

. .49

11 . . . . .

. . . . . . . . . . . . . . . . .

. .19

11 . . . . .

. . . . . . . . . . . . . . . . .

. .28

12 . . . . .

. . . . . . . . . . . . . . . . .

. .53

12 . . . . .

. . . . . . . . . . . . . . . . .

. .51

12 . . . . .

. . . . . . . . . . . . . . . . .

. .20

12 . . . . .

. . . . . . . . . . . . . . . . .

. .30

13 . . . . .

. . . . . . . . . . . . . . . . .

. .55

13 . . . . .

. . . . . . . . . . . . . . . . .

. .53

13 . . . . .

. . . . . . . . . . . . . . . . .

. .20

13 . . . . .

. . . . . . . . . . . . . . . . .

. .31

14 . . . .

. . . . .“55” . . . . . . .

. .57

14 . . . .

. . . . .“55” . . . . . . .

. .54

14 . . . .

. . . . .“25” . . . . . . .

. .21

14 . . . .

. . . . .“30” . . . . . . .

. .32

15 . . . . .

. . . . . . . . . . . . . . . . .

. .58

15 . . . . .

. . . . . . . . . . . . . . . . .

. .56

15 . . . . .

. . . . . . . . . . . . . . . . .

. .22

15 . . . . .

. . . . . . . . . . . . . . . . .

. .34

16 . . . . .

. . . . . . . . . . . . . . . . .

. .60

16 . . . . .

. . . . . . . . . . . . . . . . .

. .58

16 . . . . .

. . . . . . . . . . . . . . . . .

. .24

16 . . . . .

. . . . . . . . . . . . . . . . .

. .35

17 . . . . .

. . . . . . . . . . . . . . . . .

. .63

17 . . . . .

. . . . . . . . . . . . . . . . .

. .60

17 . . . . .

. . . . . . . . . . . . . . . . .

. .25

17 . . . . .

. . . . . . . . . . . . . . . . .

. .38

18 . . . . .

. . . . . . . . . . . . . . . . .

. .65

18 . . . . .

. . . . . . . . . . . . . . . . .

. .62

18 . . . . .

. . . . . . . . . . . . . . . . .

. .27

18 . . . . .

. . . . . . . . . . . . . . . . .

. .40

19 . . . .

. . . . .“65” . . . . . . .

. .67

19 . . . .

. . . . .“65” . . . . . . .

. .64

19 . . . . .

. . . . . . . . . . . . . . . . .

. .28

19 . . . .

. . . . .“40” . . . . . . .

. .42

20 . . . . .

. . . . . . . . . . . . . . . . .

. .70

20 . . . . .

. . . . . . . . . . . . . . . . .

. .67

20 . . . .

. . . . .“30” . . . . . . .

. .30

20 . . . . .

. . . . . . . . . . . . . . . . .

. .45

21 . . . . .

. . . . . . . . . . . . . . . . .

. .73

21 . . . . .

. . . . . . . . . . . . . . . . .

. .69

21 . . . . .

. . . . . . . . . . . . . . . . .

. .33

21 . . . . .

. . . . . . . . . . . . . . . . .

. .48

22 . . . . .

. . . . . . . . . . . . . . . . .

. .76

22 . . . . .

. . . . . . . . . . . . . . . . .

. .72

22 . . . . .

. . . . . . . . . . . . . . . . .

. .35

22 . . . . .

. . . . . . . . . . . . . . . . .

. .51

23 . . . . .

. . . . . . . . . . . . . . . . .

. .79

23 . . . . .

. . . . . . . . . . . . . . . . .

. .75

23 . . . . .

. . . . . . . . . . . . . . . . .

. .39

23 . . . . .

. . . . . . . . . . . . . . . . .

. .56

24 . . . .

. . . . .“80” . . . . . . .

. .83

24 . . . .

. . . . .“80” . . . . . . .

. .78

24 . . . . .

. . . . . . . . . . . . . . . . .

. .42

24 . . . .

. . . . .“60” . . . . . . .

. .61

25 . . . . .

. . . . . . . . . . . . . . . . .

. .87

25 . . . . .

. . . . . . . . . . . . . . . . .

. .82

25 . . . .

. . . . .“40” . . . . . . .

. .47

25 . . . . .

. . . . . . . . . . . . . . . . .

. .67

26 . . . . .

. . . . . . . . . . . . . . . . .

. .92

26 . . . . .

. . . . . . . . . . . . . . . . .

. .86

26 . . . . .

. . . . . . . . . . . . . . . . .

. .50

26 . . . . .

. . . . . . . . . . . . . . . . .

. .69

27 . . . . .

. . . . . . . . . . . . . . . . .

. .96

27 . . . . .

. . . . . . . . . . . . . . . . .

. .90

27 . . . . .

. . . . . . . . . . . . . . . . .

. .51

27 . . . . .

. . . . . . . . . . . . . . . . .

. .72

28 . . . .

. . . . . . . . . . . . . . . . .

. .102

28 . . . . .

. . . . . . . . . . . . . . . . .

. .95

28 . . . . .

. . . . . . . . . . . . . . . . .

. .54

28 . . . . .

. . . . . . . . . . . . . . . . .

. .75

29 . . . . .

. . . .“100” . . . . . .

. .108

29 . . . . .

. . . .“100” . . . . . .

. .100

29 . . . . .

. . . . . . . . . . . . . . . . .

. .56

29 . . . .

. . . . .“75” . . . . . . .

. .76

30 . . . . .

. . . . . . . . . . . . . . . .

. .114

30 . . . . .

. . . . . . . . . . . . . . . .

. .107

30 . . . . .

. . . . . . . . . . . . . . . . .

. .56

30 . . . . .

. . . . . . . . . . . . . . . . .

. .77

31 . . . . .

. . . . . . . . . . . . . . . .

. .122

31 . . . . .

. . . . . . . . . . . . . . . .

. .113

31 . . . .

. . . . .“50” . . . . . . .

. .57

31 . . . . .

. . . . . . . . . . . . . . . . .

. .77

32 . . . . .

. . . . . . . . . . . . . . . .

. .131

32 . . . . .

. . . . . . . . . . . . . . . .

. .122

32 . . . . .

. . . . . . . . . . . . . . . . .

. .58

32 . . . . .

. . . . . . . . . . . . . . . . .

. .78

33 . . . . .

. . . . . . . . . . . . . . . .

. .143

33 . . . . .

. . . . . . . . . . . . . . . .

. .131

33 . . . . .

. . . . . . . . . . . . . . . . .

. .58

33 . . . . .

. . . . . . . . . . . . . . . . .

. .79

34 . . . . .

. . . . . . . . . . . . . . . .

. .157

34 . . . . .

. . . . . . . . . . . . . . . .

. .143

34 . . . . .

. . . . . . . . . . . . . . . . .

. .58

34 . . . . .

. . . . . . . . . . . . . . . . .

. .80

35 . . . . .

. . . . . . . . . . . . . . . .

. .184

35 . . . . .

. . . . . . . . . . . . . . . .

. .156

35 . . . . .

. . . . . . . . . . . . . . . . .

. .59

35 . . . . .

. . . . . . . . . . . . . . . . .

. .81

36 . . . . .

. . . .“200” . . . . . .

. .193

36 . . . . .

. . . .“200” . . . . . .

. .169

36 . . . .

. . . . .“60” . . . . . . .

. .60

36 . . . .

. . . . .“80” . . . . . . .

. .81

37 . . . . .

. . . . . . . . . . . . . . . .

. .198

37 . . . . .

. . . . . . . . . . . . . . . .

. .186

37 . . . . .

. . . . . . . . . . . . . . . . .

. .61

37 . . . . .

. . . . . . . . . . . . . . . . .

. .81

38 . . . . .

. . . . . . . . . . . . . . . .

. .198

38 . . . . .

. . . . . . . . . . . . . . . .

. .192

38 . . . . .

. . . . . . . . . . . . . . . . .

. .61

38 . . . . .

. . . . . . . . . . . . . . . . .

. .81

39 . . . . .

. . . . . . . . . . . . . . . .

. .198

39 . . . . .

. . . . . . . . . . . . . . . .

. .197

39 . . . . .

. . . . . . . . . . . . . . . . .

. .61

39 . . . . .

. . . . . . . . . . . . . . . . .

. .81

Full-clockwise :198

Full-clockwise :197

Full-clockwise :61

 

Full-clockwise :81

 

12

JL AUDIO 1000/1

JL AUDIO 1000/1

13

APPENDIX B:

Input Sensitivity Level Setting

JL Audio amplifiers utilizing the Regulated Intelligent Power Supply (R.I.P.S.) allow delivery of their rated power when connected to any load impedance from 1.5 - 4Ω per channel and when connected to a charging system with any voltage from 11 - 14.5V. This design is beneficial for many reasons. One of these reasons is ease of setup. Because each JL Audio amplifier will always deliver the same amount of power within its operational range of impedances and supply voltages, the maximum, unclipped output is very predictable. This makes setting the gain structure via the input sensitivity controls very simple. Following the directions below will allow the user to adjust the input sensitivity of the amplifier(s) simply and easily in just a few minutes using equipment which is commonly available in installation bays.

Necessary Equipment

Digital AC Voltmeter

CD with a sine-wavetest tone recorded at 0 dB reference level in the frequency range to be amplified (ex. 50 Hz for a subwoofer amplifier.

1 kHz for a midrange application). Do not use attenuated test tones (-10dB,-20dB, etc.).

The Nine-StepProcedure

1) Disconnect the speaker(s) from the amplifier’s

“Subwoofer Output”connectors (you only need to remove the negative or positive speaker wire).

2)Turn “Off” all processing on the source unit and amplifier (bass/treble, loudness, EQ, etc.).

3)Switch the “Input Voltage” to “Low” and turn the “Input Sens.” control on the amplifier all the way down.

4)Set the source unit volume to 3/4 of full volume. If the amplifier is being driven by a source unit’s dedicated subwoofer output, also adjust the

source unit’s subwoofer level control to 3/4 of maximum output.This will allow for reasonable gain overlap with moderate clipping at full volume.

5) Using the chart below, determine the target voltage for input sensitivity adjustment according to the nominal impedance of the speaker system connected to the amplifier output.

Nom. Impedance

Target AC Voltage

4Ω (or higher)

63.2 V

 

 

3

54.7 V

2

44.7 V

 

 

1.5

38.7 V

 

 

6)Verify that you have disconnected the speakers before proceeding. Play a track with an appropriate sine wave (within the frequency range to be amplified) at 3/4 source unit volume.

7)Connect the AC voltmeter to the

“Subwoofer Output” connectors of the amplifier.

8) Increase the “Input Sens.” control until the target voltage is delivered. If multiple subwoofer amps are being used, set each one to the same exact voltage and you have also level matched them. If excessive voltage is read with the control at minimum (full counterclockwise), switch the

“Input Voltage” to “High” and re-adjust.

9) Once you have adjusted each amplifier to its maximum unclipped output level, reconnect the speaker(s).The “Input Sens.” can now be adjusted downward if the amplifier requires attenuation to achieve the desired system balance.

! IMPORTANT

Do not increase any “Input Sens.” setting in the system beyond the maximum level established during this procedure. Doing so will result in audible distortion and possible speaker damage.

14

JL AUDIO 1000/1

JL AUDIO 1000/1

15

APPENDIX C:

Master/Slave Configurations

With the flexible on-boardcrossovers and processing incorporated into the 1000/1, it is possible to connect multiple 1000/1’s in a “Master/Slave” configuration, with each amplifier driving its own speaker system but controlled by the processing and filtering of only one amplifier. This is very useful when driving multiple subwoofers with multiple amplifiers.

To create a Master/Slave configuration, first determine which amplifier will be the “Master” amplifier and connect the main input signal to that amplifier (from the source unit or from an outboard processor).This amplifier’s “Amp LP Filter” section and “Advanced Bass Control” features will process the signal for the “Slave” amplifier or amplifiers.

Here is the procedure for implementing a “Master/Slave” configuration:

1) Set the “Master” amplifier’s “Output Mode” switch to the center “Amp Filter” position.This will send a parallel, mono-summedsignal from the “Master” amplifier’s “Amp LP Filter” section to its preamp outputs.

2) Connect an RCA cable from the “Master” amplifier’s preamp outputs to the main input of the first “Slave” amplifier. Set the “Slave” amplifier’s

“Amp LP Filter” to the “Off” position.This will defeat the LP filter and the bass processing of this “Slave Amplifier”.

3) The input sensitivity of the two amplifiers needs to be adjusted independently.To properly calibrate the amplifiers for maximum, identical, clean output, please refer to Appendix B (page 14). After using this procedure, you can then adjust the level of the amplifiers by adjusting the input sensitivities downward, if the amplifiers require attenuation to achieve the desired system balance. If the input sensitivities are adjusted, the amplifiers must be recalibrated to ensure identical power output levels.

Please note that the “Input Range” switch on all “slave” amplifiers needs to be set to “Low”, even if the “master” amplifier is high voltage and its switch is set to “High”. All signals passed

MASTER:

out of the preamp outputs of the amplifier are compatible with the “Low” setting on the

“Input Range” control.

The “Signal Sensing” turn-onfeature will not work on “slave” amplifiers, but “slave” amplifiers can be turned on and off by a “master” amplifier operating in signal sensingturn-onmode. Simply connect the “master” amplifier’s

“Remote” connection, to the “slave” amplifier(s)

“Remote” connection(s).

Do not increase the “Input Sens.” setting for any amplifier in the system beyond the maximum level established during the procedure outlined in Appendix B (page 14). Doing so will result in audible distortion and possible speaker damage.

4) If you would like to run a third amplifier in “Slave” configuration, select the “Full-Range”position on the “Output Mode” switch of the first “Slave” amplifier.Then, connect an RCA cable from the first “Slave” amplifier’s preamp outputs to the second “Slave” amplifier. As you did with the

first “Slave” amplifier, set the second “Slave” amplifier’s “Amp LP Filter” to the “Off” position. Then, calibrate the third amplifier’s “Input Range” and “Input Sens.” controls in the same manner as you did for the second amplifier.

Additional amplifiers may be added to this “Master/Slave” configuration following the same procedure as in step 4.

Once you match the input sensitivities of all the amplifiers, you can use the “Master” amplifier’s

“Amp LP Filter” and “Advanced Bass Control” features to control the “Slave” amplifier(s). If the remote bass control (RBC-1)is used, it need only be connected to the “Master” amplifier to control all the amplifiers in the Master/Slave chain.

Below is a diagram showing a Master/Slave configuration with one “Master” (top amplifier) and two “Slave” amplifiers. Switches and controls that are defeated in the “Slave” amplifiers are printed in gray.

+12VDC

Ground

Remote

 

 

 

 

 

 

 

The Master amplifier’s

 

 

 

 

 

“Advanced Bass Control”

Low/High

 

 

 

 

section is active and affects

 

 

 

!

IMPORTANT

all three amplifiers equally.

 

 

 

 

 

 

 

Make sure that the "Output Polarity"

 

 

 

 

switches are in the same position for

 

 

 

 

all the amplifiers in a master/slave chain.

 

Connect Master 1000/1 Input to Signal Source

 

 

 

 

 

 

Set all amps in chain to "Normal" OR

Connect Master 1000/1 Preamp Output to Slave A 1000/1 Input

 

SLAVE (A):

 

Set all amps in chain to "Reversed"

+12VDC Ground Remote

 

This Slave amplifier’s

 

 

“Advanced Bass Control”

 

 

section and AMP LP Filter are

 

 

Low/High

 

 

inactive, but the Full-Range

 

 

(pass-through)feature of its

 

 

“Preamp Output” feeds the

 

 

input of the next Slave amplifier.

 

 

SLAVE (B):

Connect Slave A 1000/1 Preamp Output to Slave B 1000/1 Input

 

 

 

+12VDC

Ground

Remote

 

 

 

The last Slave amplifier’s

 

 

 

“Advanced Bass Control”

Low/High

 

 

section,AMP LP Filter and

 

 

 

“Preamp Output” are inactive.

 

16

JL AUDIO 1000/1

JL AUDIO 1000/1

17

APPENDIX D: TROUBLE SHOOTING

“MY AMPLIFIER DOESN’T TURN ON”

Check to make sure there is +12V at the “Remote” connection of the amplifier. In some cases, theturn-onlead from the source unit is insufficient to turn on multiple devices and the use of a relay is required. To test for this problem, jump the “+12V” wire to the “Remote” terminal to see if the amplifier turns on. If this does not work, proceed to the next step.

Check the fuse, not just visually but with a continuity meter. It is possible for a fuse to have poor internal connections that cannot be found by visual inspection. It is best to take the fuse out of the holder for testing. If no problem is found with the fuse, inspect thefuse-holder.

Check the “Signal Sensing” switch to make sure it is in the desired position. If you are using a remote wire, this switch should be in the “Off” position. If you are using the signal sensing feature, make sure there is afull-rangesignal being sent to the RCA inputs of the amplifier. If you continue to have trouble with the signal sensing feature, test the amplifier’s ability to turn on by throwing the “Signal Sensing” switch to the “Off” position and jumping the “+12V” wire to the “Remote” terminal. If this turns the amplifier on, check your input signal and connections.

“I GET A DISTORTED / ATTENUATED SOUND COMING OUT OF THE SPEAKER(S)”

Check the speaker wires for a possible short, either between the positive and negative or between a speaker lead and the vehicle’s chassis ground. If a short is present you will experience distorted and/or attenuated output.The

“Low Ω” light may also illuminate in this situation. It may be helpful to disconnect the speaker wires from the amplifier and use a different set of wires connected to a test speaker.

Check the nominal load impedance to verify that the amplifier is driving a load between 1.5 - 4Ω. JL Audio monoblock amplifiers have two “+” positive connections and two“–”negative connections.This is to facilitate multiple speaker wiring. The two positive and two negative connections are connected in parallel inside the amplifier. Connecting two speakers, each to one set of positive and negative terminals, will result in a parallel speaker connection. In this case, each of the two loads should have a nominal impedance between 3 - 8Ω.

Check the input signal and input signal cables to make sure signal is present at the “Amplifier Input Section” and the cables are not pinched or loose. It may be helpful to try a different set of cables and/or a different signal source to be sure.

“MY AMPLIFIER SHUTS OFF ONCE IN A WHILE, USUALLY AT HIGHER VOLUMES”

Check your voltage source and grounding point.The R.I.P.S. power supply is rated to operate with source voltages between 11 - 14.5V. Shutdown problems at higher levels can occur

when the charging system voltage drops below 10-volts.Thesedips can be of very short duration making them extremely difficult to detect with a common DC voltmeter.To ensure proper voltage, inspect all wiring and termination points. It is also a good idea to improve the vehicle’s factory ground wire and termination point. Grounding problems are the leading cause ofmis-diagnosedamplifier failures.

“MY AMPLIFIER TURNS ON, BUT THERE IS NO OUTPUT”

Check the input signal using an AC voltmeter to measure the voltage from the source unit while an appropriate test tone is played through the source unit (disconnect the RCA cables from the amplifier prior to this test).The frequency used should be in the range that is to amplified by the channels being tested (example: 50 Hz for a sub bass amplifier channel and 1 kHz for afull-rangeamplifier channel). A steady voltage should be present at the output of the RCA cables. If you are receiving a sufficient voltage (between 0.2 and8.0-volts),check to ensure that the speaker wires are making a good connection with the metal inside the amplifier.The connectors are designed to accept up to an 8 AWG wire. If you are using significantly smaller wire (14 AWG or smaller), you may have difficulty making an adequate connection. In this case, you may find it necessary to “fold” the wire over once (or twice!) so as to make a solid connection. Make sure to strip the wire to allow for a sufficient connection with the input or output of the amplifier.

Check the output of the amplifier. Using the procedure explained in the previous check item (after plugging the RCA cables back into the amplifier) test for output at the speaker outputs of the amplifier. Unless you enjoy test tones at high levels, it is a good idea to remove the speaker wires from the amplifier while doing this. Turn the volume up approximately half way.

5-voltsor more should be measured at the speaker outputs. This output level can vary greatly between amplifiers but it should not be in the millivolt range with the source unit at half volume. If you are reading sufficient voltage, check your speaker connections as explained above.

(continued on next page)

18

JL AUDIO 1000/1

JL AUDIO 1000/1

19