JL Audio XDM300/1 Manuel D'utilisation page 3

CONNECTIONS
1
Connection Description
+12 VDC Positive (+12V) Power Connection
1
Ground Negative (GND) Ground Connection
Remote Positive (+12V) Activation Connection
CH. 1 Input Left Input Signal, Black RCA
CH. 2 Input Right Input Signal, Red RCA
2
Preout 1 Left Pass-Through Preamp Signal, Black RCA
Preout 2 Right Pass-Through Preamp Signal, Red RCA
Remote Level Remote Level Controller Connection (optional)
3
Control (HD-RLC or MHD-RLC)
(+) Positive Subwoofer Output
(+) Positive Subwoofer Output
Mono
4
Subwoofer
Output
(–) Negative Subwoofer Output
(–) Negative Subwoofer Output
4 | JL Audio® - XDM300/1
2 3 4
Notes
• 4 AWG wire (8 AWG minimum)
• Install 30A fuse at (+) battery post
• 4 AWG wire (required)
• 18 – 12 AWG wire capacity
• See Turn On Mode for more info
• Accepts 200mV – 4V input voltage
• If only one subwoofer channel signal is
available, a Y-adaptor is recommended
to feed both inputs.
• Same signal that is connected to
CH. 1&2 inputs
• Unaffected by the amplifier's LP filter
• Operates as an attenuator only:
Fully counter-clockwise = Level Muted
Fully clockwise = Level Unaffected
• Multiple amplifiers can be controlled
from a single HD-RLC using a non-
duplex phone line splitter and multiple
phone cables.
• Both positive (+) connections are con-
nected in parallel internally
• Both negative (–) connections are con-
nected in parallel internally
• Minimum impedance load: ≥2 ohms
• 16 – 8 AWG wire capacity
CONTROLS
Control (Function) Setting
Flashing
Amplifier Powering Up, Audio Output Muted
Green
Green On-Normal Operation, Active Audio Output
On-Safe Mode, Over-Temperature Condition, Audio Output Reduced
Red
Status LED • Reverts to normal operation when temperature returns to a safe level
5
(indicates operating
On-Safe Mode, Over-Current Condition, Audio Output Muted
status)
Amber
• May exhibit repetitive, audible ticking or thumping noise in the output
(yellow)
• Inspect for speaker/wire short circuit or low impedance
Amplifier Turns Off (unexpectedly), Low-Voltage Condition
LEDs Off • Occurs when battery or remote turn-on voltage drops below 10V
• Reverts to normal operation when voltage rises above 11V
+12V Remote Turn-On (Preferred)
Remote • Controlled by a switched +12V circuit or turn-on out-
put of your source unit/OEM interface
DC Offset-Sensing (Automatic)
Turn On Mode • Turns On by detecting the presence of small DC
Offset
signal in OEM audio outputs and turns Off after
(configures
the signal is removed
activation method)
6
Signal-Sensing (Automatic)
• Turns On by detecting full-range OEM audio
Signal
signals and turns OFF after the signal is removed
(within 30 seconds)
Input Filter Car Select for most installations (automotive or marine)
(configures input
filter application) Boat Select if experiencing interference from high-current mechanical switches/devices
Input Sens.
Use to match the source unit's output voltage with the amplifier's inputs.
(adjusts the Variable
See Appendix A for detailed information.
input stage)
Off Filter defeated; passes full range of frequencies present at the inputs
LP Filter Mode/Slope
(configures the
12dB Attentuates frequencies above the "Filter Freq. (Hz)" dial, at a rate of 12dB/octave
7
low-pass filter
and slope)
24dB Attentuates frequencies above the "Filter Freq. (Hz)" dial, at a rate of 24dB/octave
Filter Freq. (Hz)
(adjusts the low- Use to adjust the cutoff frequency of the low-pass active filter,
Variable
pass filter cutoff from 50 Hz – 500 Hz / 12dB per octave
frequency)
5
6 7
Description
• Designed for high-level
(speaker) signals only
• Detects input signal from
CH. 1 (L) only
• Using DC Offset or Signal
Sensing methods will turn the
"Remote" terminal into a +12V
turn-on output.
5