JL Audio 1000/1v2 Manual Do Utilizador

14  |  JL Audio - 1000/1

v2

 Owner’s Manual  

15

Recommended Fuse Value: 100A

Recommended Fuse Type: ANL

Input Type: Differential-balanced with RCA jack inputs

Input Range: Switchable from 200mV - 2V RMS to  

800mV - 8V RMS

Amplifier Topology: H-Bridge, Class D Mono  

with impedance optimization and patented 

discrete drive circuitry 

Power Supply: Pulse width modulation-regulated  

switching power supply 

Rated Power: 1000W RMS x 1 @ 1.5 - 4Ω (11 - 14.5V)

THD at Rated Power: <0.05% @ 4Ω, 50 Hz 

Signal to Noise Ratio: >95 dB referred to rated power  

(A-weighted, 20 Hz - 20 kHz noise bandwidth)

Frequency Response: 5 - 250 Hz (+0, -3 dB)

Damping Factor: >500 @ 4Ω/50 Hz, >250 @ 2Ω/50 Hz

Amplifier Low-Pass Filter: State-variable, 12 dB/octave 

Butterworth or 24 dB/octave Linkwitz-Riley with 

continuously variable cutoff frequency selection  

from 40 - 200 Hz, defeatable

2-Channel, with fully independent, state-variable,  

12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley 

filter with continuously variable cutoff frequency selection 

from 40 - 200 Hz, defeatable

Parametric EQ: Single-band, fully parametric equalizer  

with “Q” adjustment from 0.5 - 4.0, center frequency 

adjustment from 20 - 80 Hz, boost adjustment from 0 to 

+15 dB and port for optional remote bass boost control 

(RBC-1), defeatable

Infrasonic Filter: Fully variable, 24 dB/octave Butterworth 

high-pass filter, cutoff frequency adjustable from 15 - 60 

Hz, defeatable

19.7" x 9.25" x 2.36" ( mm x 235mm x 60mm)

4Ω (or higher)

63.2V

54.7V

44.7V

38.7V

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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
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0 dB reference level in the frequency range  
to be amplified for that set of channels  
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a midrange application). The CleanSweep® 
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test tones and is available for sale at  
http://store.jlaudio.com

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test tones (-10 dB, -20 dB, etc.).

The Nine-Step Procedure 
1)

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amplifier’s speaker output connectors.

2)  Turn off all processing (bass/treble, loudness, 

EQ, etc.) on the source unit, processors (if 
used) and amplifier. Set fader control to center 
position and subwoofer level control to 3/4 of 
maximum (if used to feed the 1000/1v2).

3)  Switch the 

iInput Voltagew switch to iLoww 

and turn the 

iInput Sens.w control all the  

way down.

4)  Set the source unit volume to 3/4 of full 

volume. This will allow for reasonable gain 
overlap with moderate clipping at full volume.

5)  Using the chart on this page, determine the target 

voltage for input sensitivity adjustment according 
to the nominal impedance of the speaker system 
connected to the amplifier outputs.

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 by the 1000/1v2) at 3/4 
source unit volume.

7)  Connect the AC voltmeter to the speaker output 

connectors of the amplifier. If the channel  
pair is operating in stereo, it is only necessary  
to measure one channel. If bridged, make sure  
you test the voltage at the correct connectors  
(L+ and R–).

8)  Increase the 

iInput Sens.w control until the 

target voltage is observed with the voltmeter.

9)  Once you have adjusted the 1000/1v2 to 

its maximum low-distortion output level, 
reconnect the speaker(s). The 

iInput Sens.w 

control can now be adjusted downward if the 
amplifier requires attenuation to achieve the 
desired system balance. 

It will be necessary to re-adjust the  

iInput Sens.w for the affected channels if any 
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iInput Sens.w with this procedure. This applies  
to any EQ boost circuit, including source unit 
tone controls or EQ circuits. EQ cuts will not 
require re-adjustment.

Due to ongoing product development, all specifications are subject to 
change without notice.