JL Audio 505 Stereo Amplifier User Manual


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position. Depending on the crossover point and
slope of the source unit/processor's filter, you
may wish to engage the 500/5's sub low-pass
filter to fine-tune the sub-bass response.
• If you are using a high-quality outboard active
crossover, you can defeat all of the 500/5's filters
by selecting the “Off” position on the “Sub LP
Filter” switch in the “Subwoofer Channel
Control Section”, the “High-Pass Filter” switch
in the Rear Filter Section and the “Filter Mode”
switch in the Front Filter Section.
L-R Ambience Control:
This switch, located in the “Rear Filter Section”,
performs a very useful function when operating the
amplifier in bi-amp mode. By switching this circuit to
the “On” position, all signal common to both left
and right channels is removed from the signal
feeding the rear channels of the 500/5.When the
circuit is “On”, the rear channels will only reproduce
the extreme left and right information in the
recording, creating a realistic ambient effect from the
rear channels without detracting from the imaging
of the front speaker system. Experiment with this
switch to determine if this feature enhances the
sound of your system.
JL AUDIO 500/5 17
Some source units and processors with
subwoofer preamp outputs provide low-pass
filtering on these outputs, while others have a full-
range output. Consult your source unit or processor
owner's manual to determine the properties of the
subwoofer preamp output.
• If your sub preamp output is full-range, engage
the 500/5's sub low-pass filter by selecting the
“12dB” or “24dB” position on the “Sub LP
Filter” switch.This configuration is illustrated in
the setup diagram.
IMPORTANT
!
• If your sub preamp output has a choice between
full-range and low-pass modes, select the full-
range mode and use the 500/5's (likely more
sophisticated) sub low-pass filter by selecting the
“12dB” or “24dB” position on the “Sub LP
Filter” switch. This configuration is illustrated in
the setup diagram.
• If the source unit/processor sub preamp output
has a low-pass filter which is not defeatable, you
can turn the 500/5's low-pass filter off by going
to the “Subwoofer Channel Control Section” /
“Sub LP Filter” switch and selecting the “Off”
16 JL AUDIO 500/5
Adjusts level of
rear channels.
Select 12dB or
24dB/octave filter
slope for rear
channels
(high-pass)
Select high-pass
filter freq. for rear
channels (50-500 Hz)
Select Ambience
Mode (Off or On)
Select “Low” for
preamp level inputs
or “High” for
speaker level inputs
Select “4ch”
Input Mode
Amp Output to
Rear Satellite
Speakers
Amp Output to
Front Satellite
Speakers
Select “HP”
(High-Pass)
Mode
Select 12dB or
24dB/octave filter
slope for front
channels
(high-pass)
Select “x1”
range for rear
filter freq.
(50-500 Hz)
Select “x1” range
for front filter freq.
(50-500 Hz)
Select high-pass
filter freq. for
rear channels
(50-500 Hz)
Adjusts level of
front channels.
Input from rear
outputs of source
unit or processor
Input from front
outputs of source
unit or processor
Select “Low” for
preamp level inputs
or “High” for
speaker level inputs
Front Input Section
Input Sens.
Input Voltage
Low/High
Left Ch.
Right Ch.
Front Filter Section
Freq. Range
x1/x10
HP Filter Freq.(Hz)
Front Speaker Outputs
Filter Slope
12dB/24dB
Filter Mode
Off/BP/HP
Rear Speaker Outputs (25Wx2)
Rear Input Section
Input Sens.
Input Voltage
Low/High
Left Ch.
Right Ch.
L-R Ambience
Off/On
Rear Filter Section
Freq. Range
x1/x10
Filter Freq. (Hz)
High-Pass Filter
Off/12dB/24dB
F/R Input Mode
2ch/4ch
Also sets
low-pass
cutoff for
Front Ch.
Bandpass
filter (when
selected)
Rear
Inputs
Only
Front
and
Rear
Rear
Inputs
Only
Adjusts level of
rear channels.
Select 12dB or
24dB/octave filter
slope for rear
channels
(high-pass)
Select Ambience
Mode (Off or On)
Select “Low” for
preamp level inputs
or “High” for
speaker level inputs
Select “Low” for
preamp level inputs
or “High” for
speaker level inputs
Select “2ch”
Input Mode
Amp Output to
Rear Satellite
Speakers
Amp Output to
Front Satellite
Speakers
Select “HP”
(High-Pass)
Mode
Select 12dB or
24dB/octave filter
slope for front
channels
(high-pass)
Select “x1”
range for rear
filter freq.
(50-500 Hz)
Select “x1” range
for front filter freq.
(50-500 Hz)
Select high-pass
filter freq. for
rear channels
(50-500 Hz)
Adjusts level of
front channels.
Input from front
outputs of source
unit or processor
Not Used
Front Input Section
Input Sens.
Input Voltage
Low/High
Left Ch.
Right Ch.
Front Filter Section
Freq. Range
x1/x10
HP Filter Freq.(Hz)
Front Speaker Outputs
Filter Slope
12dB/24dB
Filter Mode
Off/BP/HP
Rear Speaker Outputs (25Wx2)
Rear Input Section
Input Sens.
Input Voltage
Low/High
Left Ch.
Right Ch.
L-R Ambience
Off/On
Rear Filter Section
Freq. Range
x1/x10
Filter Freq. (Hz)
High-Pass Filter
Off/12dB/24dB
F/R Input Mode
2ch/4ch
Also sets
low-pass
cutoff for
Front Ch.
Bandpass
filter (when
selected)
Rear
Inputs
Only
Front
and
Rear
Select high-pass
filter freq. for rear
channels (50-500 Hz)
Input from sub
outputs of source
unit or processor
Select 12dB or
24dB/octave filter
slope for sub
channel (low-pass)
Adjusts level of
sub channel
30 Hz Infrasonic
Filter for sub
channel
(On or Off)
For full-range
preamp output
select “F+R”
For preamp output
to slave subwoofer
amplifier(s) select
“Sub LP”
To input of
additional
amplifier (if used)
Control LF (bass)
boost level with
on-board knob
or optional
RBC-1 controller
Select low-pass
filter freq. for
sub channel
(40-200 Hz)
Amp Output to
Subwoofers
Select “Ind.”
(Independent)
Input Mode
Select “Low” for
preamp level inputs
or “High” for
speaker level inputs
JL AUDIO 500/5
five-channel system amplifier
+12VDC Ground Remote
Subwoofer Output (250Wx1)
Sub LP/F+R Inputs/Front
Subwoofer Channel Control Section
Input Sens.
Input Voltage
Low/High
Independent Sub Input
Sub LP Filter
Off/12dB/24dB
Preamp Output Section
Signal From
Filter Freq. (Hz)
Remote Bass
Port
Off/30Hz
LF Boost (dB)
Input From:
Ind./F+R/Front
Infrasonic Filter
Left
Right
Left Ch.
Right Ch.
+1
+13
+3
+7
+10
D) Three pairs of inputs connected to the rear,front and subwoofer inputs of the 500/5.This mode is applicable for use in systems
with a source unit or processor that provides discrete front, rear and subwoofer outputs.In this mode, the subwoofer level and
front to rear fading can be controlled from the front of the vehicle.
Input from rear
outputs of source
unit or processor
Select 12dB or
24dB/octave filter
slope for sub
channel (low-pass)
Adjusts level of
sub channel
30 Hz Infrasonic
Filter for sub
channel
(On or Off)
For full-range
preamp output
select “F+R”
For preamp output
to slave subwoofer
amplifier(s) select
“Sub LP”
To input of
additional
amplifier (if used)
Control LF (bass)
boost level with
on-board knob
or optional
RBC-1 controller
Select low-pass
filter freq. for
sub channel
(40-200 Hz)
Amp Output to
Subwoofers
Select “Ind.”
(Independent)
Input Mode
Select “Low” for
preamp level inputs
or “High” for
speaker level inputs
JL AUDIO 500/5
five-channel system amplifier
+12VDC Ground Remote
Subwoofer Output (250Wx1)
Sub LP/F+R Inputs/Front
Subwoofer Channel Control Section
Input Sens.
Input Voltage
Low/High
Independent Sub Input
Sub LP Filter
Off/12dB/24dB
Preamp Output Section
Signal From
Filter Freq. (Hz)
Remote Bass
Port
Off/30Hz
LF Boost (dB)
Input From:
Ind./F+R/Front
Infrasonic Filter
Left
Right
Left Ch.
Right Ch.
+1
+13
+3
+7
+10
C) Two pairs of inputs connected to the rear and subwoofer inputs of the 500/5 (a source unit or processor with front and rear
outputs is required).In this mode,the source unit or processor fader adjusts the relative level of the subwoofer channel vs.all four
satellite channels as a whole.The relative level of the front and rear channels is pre-set with the amplifier input sensitivity controls
and cannot be adjusted from the source unit.
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