JL Audio 1000/1v2 owner manual Remote Turn-On, Amplifier Input Section

REMOTE TURN-ON

AMPLIFIER INPUT SECTION

The 1000/1v2 uses a conventional +12V remote

The 1000/1v2 employs a differential-balanced

The amplifier will operate with only one input

3) Input Sensitivity Adjustment: Located

turn-on lead, typically controlled by the source

input topology that provides the user with a high

connection (left or right), but will require an

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unit's remote turn-on output. The amplifier will

degree of input flexibility while retaining superior

increase in input sensitivity to overcome the loss

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turn on when +12V is present at its “Remote”

noise rejection. This type of circuit also allows

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

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input and turn off when +12V is switched off. If

the 1000/1v2 to accept high-voltage inputs from

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a source unit does not have a dedicated remote

factory source unit outputs without excessive

JL Audio ECS model XB-CLRAICY-1F2M to split

rotary control can be used to match the source

turn-on output, the amplifier’s turn-on lead can

distortion or noise problems.

the mono signal into both inputs of the amplifier.

unit’s output voltage to the input stage of the

be connected to +12V via a switch that derives

amplifier for maximum clean output. Rotating

power from an ignition-switched circuit.

2) Input Voltage Range: A wide range of signal

the control clockwise will result in higher

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

r

Amplifier Input Section

input voltages can be accommodated by

sensitivity (louder for a given input voltage).

Input Voltage

Input Sens.

O

designed to accept 12 AWG – 8 AWG wire.

the 1000/1v2’s input section (200mV – 8V).

Rotating the control counter-clockwise will

12 AWG is more than adequate for this purpose.

B

Low High

N

This wide range is split up into two sub-

result in lower sensitivity (quieter for a given

To connect the remote turn-on wire to the

ranges, accessible via switches located in the

input voltage). To properly set the amplifier

amplifier, first back out the set screw on the

0

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for maximum clean output, please refer to

top of the amplifier, using the supplied hex

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Appendix A (page 14) in this manual. After

wrench. Strip 1/2 inch (12mm) of wire and

Left Ch.

Right Ch.

switch selects an input sensitivity range

using this procedure, you can then adjust

insert the bare wire into the receptacle on the

between 200mV and 2V. This means that

the level of the amplifier by adjusting the

front panel of the amplifier, seating it firmly so

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input sensitivity downward, if the amplifier

that no bare wire is exposed. Smaller wire than

1) Input Connections: A standard left/right pair

within that voltage window. If you are using

requires attenuation to achieve the desired

12 AWG can be used, but it may be necessary

of RCA type jacks is used for input on

an aftermarket source unit, with conventional

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to strip 1 inch of insulation from the wire and

the 1000/1v2. You may run a stereo or a mono

preamp-level outputs, this is most likely the

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fold the bare wire in half prior to insertion.

signal into the inputs of the amplifier. The

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beyond the maximum level established during

While holding the wire in the terminal, tighten

amplifier’s input section automatically sums

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the procedure outlined in Appendix A (page

the set screw firmly, taking care not to strip

stereo signals to mono for the internal

sensitivity range between 800mV and 8V. This

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the head of the screw and making sure that

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is useful for certain high-output preamp level

and possible speaker damage.

the wire is firmly gripped by the set screw.

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signals as well as speaker-level output from

source units and small amplifiers. To use

speaker-level sources, splice the speaker output

+12VDC Ground Remote

!

I M P O RTA N T

wires of the source unit or small amplifier

If you plan to use the “Preamp Output” in

onto a pair of RCA cables or plugs or use the

“Full-Range” or “HP” mode to feed a stereo

JL Audio ECS Speaker Wire to RCA adaptor

1000/1v2

amplifier, you must connect a stereo signal to

(XB-CLRAIC2-SW).

the input of the amplifier. A mono signal into

Monoblock Subwoofer Amplifier

the amplifier will result in a mono signal out of

!

I M P O RTA N T

the preamp output. (It’s a great amplifier, but it

doesn’t do magic).

The output of the amplifier will decrease

for a given input voltage when the “Input

Range” switch is placed in the “High” position.

Conversely, the output will be higher with

the switch in the “Low” position. While this

may sound counter-intuitive, it is correct

as described.

6 JL Audio - 1000/1v2 Owner’s Manual 7