JL Audio XDM400/4 Bedienungsanleitung Seite 4

CONTROLS
6
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)
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)
6
( configures input
filter application) Boat Select if experiencing interference from high-current mechanical switches/devices
Select when using CH. 1&2 inputs only
Input Mode
2 Ch. • CH. 3 will operate with CH. 1 signal
( configures input • CH. 4 will operate with CH. 2 signal
signal connections)
4 Ch. Select when using all four inputs
Remote Level Mode All Adjusts level of all channels equally
( configures HD-RLC
operation - optional) 3 - 4 Adjusts level of channels 3 & 4 only
Preouts From 1&2 Same signal that is connected to CH. 1&2 inputs
(configures preamp
output signals) Sum Summed signal, combining CH. 1&3 and CH. 2&4 inputs into a stereo signal pair
6 | JL Audio® - XDM400/4
5
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.
• Multiple amplifiers can be controlled
from a single HD-RLC using a non-
duplex phone line splitter and multiple
phone cables.
CONTROLS
Control (Function) Setting
Input Sens.
Use to match the source unit's output voltage with the inputs of each pair of
( adjusts each channel Variable
amplifier channels. See Appendix A for detailed information.
pair's input stage)
Off Filter defeated; passes full range of frequencies present at the inputs
Filter Mode
( configures the HP Attentuates frequencies below the CH. 1&2 "Filter Freq. (Hz)" dial, at a rate of 12dB/octave
filter of CH. 1&2)
LP Attentuates frequencies above the CH. 1&2 "Filter Freq. (Hz)" dial, at a rate of 12dB/octave
Filter Freq. (Hz)
7
Use to adjust the cutoff frequency of channel 1&2's active filter,
( adjusts filter cutoff Variable
from 50 Hz – 500 Hz / 12dB per octave
frequency)
Off Filter defeated; passes full range of frequencies present at the inputs
Filter Mode
( configures the
HP Attentuates frequencies below the CH. 3&4 "Filter Freq. (Hz)" dial, at a rate of 12dB/octave
filter of CH. 3&4)
LP Attentuates frequencies above the CH. 3&4 "Filter Freq. (Hz)" dial, at a rate of 12dB/octave
Filter Freq. (Hz)
Use to adjust the cutoff frequency of channel 3&4's active filter,
( adjusts filter cutoff Variable
from 50 Hz – 500 Hz / 12dB per octave
frequency)
7
Description
7