JL Audio 1200/1v3 User Manual

18 | JL Audio - 1200/1v3 Owner’s Manual
19
3) The input sensitivity of the two amplifiers
needs to be adjusted independently. To
properly calibrate the amplifiers for
maximum, identical, clean output, please
refer to Appendix A (page 14). After using this
procedure, you can then adjust the level of the
amplifiers by adjusting the input sensitivities
downward, if the amplifiers require attenuation
to achieve the desired system balance. If the
input sensitivities are adjusted, the amplifiers
must be recalibrated to ensure identical power
output levels.
Note:5IFiInput RangewTXJUDIPOBMMi4MBWFw
BNQMJGJFSTOFFETUPCFTFUUPiLowwFWFOJG
UIFi.BTUFSwBNQMJGJFSJTIJHIWPMUBHFBOEJUT
TXJUDIJTTFUUPiHighw"MMTJHOBMTQBTTFEPVU
of the preamp outputs of the amplifier are
DPNQBUJCMFXJUIUIFiLowwTFUUJOHPOUIFiInput
RangewDPOUSPM
4) If you would like to run a third amplifier
JOi4MBWFwDPOGJHVSBUJPOTFMFDUUIFiFull-
RangewQPTJUJPOPOUIFiOutput Modew
TXJUDIPGUIFGJSTUi4MBWFwBNQMJGJFS5IFO
connect an RCA cable from the first
i4MBWFwBNQMJGJFSTQSFBNQPVUQVUTUPUIF
TFDPOEi4MBWFwBNQMJGJFS"TZPVEJEXJUI
UIFGJSTUi4MBWFwBNQMJGJFSTFUUIFTFDPOE
i4MBWFwBNQMJGJFSTiAmp LP FilterwUPUIF
iOffwQPTJUJPO5IFODBMJCSBUFUIFUIJSE
BNQMJGJFSTiInput RangewBOEiInput
Sens.wDPOUSPMTJOUIFTBNFNBOOFSBTZPV
did for the second amplifier.
Additional amplifiers may be added to this
i.BTUFS4MBWFwDPOGJHVSBUJPOGPMMPXJOHUIFTBNF
procedure as in step 4.
Once you match the input sensitivities of
BMMUIFBNQMJGJFSTZPVDBOVTFUIFi.BTUFSw
BNQMJGJFSTiAmp LP FilterwBOEiAdvanced
Bass ControlwGFBUVSFTUPDPOUSPMUIFi4MBWFw
amplifier(s). If the remote bass control (RBC-1) is
VTFEJUOFFEPOMZCFDPOOFDUFEUPUIFi.BTUFSw
amplifier to control all the amplifiers in the
i.BTUFS4MBWFwDIBJO
3FGFSFODFUIFEJBHSBNTIPXJOHBi.BTUFS
4MBWFwDPOGJHVSBUJPOXJUIPOFi.BTUFSwUPQ
BNQMJGJFSBOEUXPi4MBWFwBNQMJGJFST4XJUDIFT
BOEDPOUSPMTUIBUBSFEFGFBUFEJOUIFi4MBWFw
amplifiers are printed in gray.
APPENDIX D:
Master/Slave Configurations
With the flexible on-board crossovers and
processing incorporated into the 1200/1v3, it
is possible to connect multiple 1200/1v3’s in a
i.BTUFS4MBWFwDPOGJHVSBUJPOXJUIFBDIBNQMJGJFS
driving its own speaker system but controlled by
the processing and filtering of only one amplifier.
This is very useful when driving multiple
subwoofers with multiple amplifiers.
To create a Master/Slave configuration, first
EFUFSNJOFXIJDIBNQMJGJFSXJMMCFUIFi.BTUFSw
amplifier and connect the main input signal to
that amplifier (from the source unit or from an
PVUCPBSEQSPDFTTPS5IJTBNQMJGJFSTiAmp LP
FilterwTFDUJPOBOEiAdvanced Bass Controlw
GFBUVSFTXJMMQSPDFTTUIFTJHOBMGPSUIFi4MBWFw
amplifier or amplifiers.
Here is the procedure for implementing a
i.BTUFS4MBWFwDPOGJHVSBUJPO
4FUUIFi.BTUFSwBNQMJGJFSTiOutput Modew
TXJUDIUPUIFDFOUFSiAmp FilterwQPTJUJPO
This will send a parallel, mono-summed signal
GSPNUIFi.BTUFSwBNQMJGJFSTiAmp LP Filterw
section to its preamp outputs.
$POOFDUBO3$"DBCMFGSPNUIFi.BTUFSw
amplifier’s preamp outputs to the main input
PGUIFGJSTUi4MBWFwBNQMJGJFS4FUUIFiSlavew
BNQMJGJFSTiAmp LP FilterwUPUIFiOffw
position. This will defeat the LP filter and the
CBTTQSPDFTTJOHPGUIJTi4MBWFwBNQMJGJFS
MASTER:
Preamp Output Section Infrasonic Filter “Q” Center Freq. Boost (dB) Amp LP Filter
Advanced
Bass
Control
Amplifier Input Section Subwoofer Output
MONO OUTPUT ONLY
Left Output Right Output Left Ch. Right Ch.Filter Freq. (Hz) Filter Freq. (Hz)Infrasonic Freq. (Hz) Remote Bass Port
Full Range
|
Amp Filter
|
Out Filter
Output Mode Filter Slope Mode Mode
|
Slope Input Voltage Input Sens.
Output Polarity
12dB
|
24dB
Filter Mode
LP
|
HP
Bass EQ
Off
|
On
Off
|
12dB
|
24dB Low
|
High Normal
|
Reversed Off
|
On
40
45
55
65
85
120
200 15
18
25
30
40
50
60 40
45
55
65
80
100
200
0.5
0.7
1.1
1.6
2.7
4.3
20
25
35
45
55
70
80 0
+4
+10
+13
+15
Preamp Output Section Infrasonic Filter “Q” Center Freq. Boost (dB) Amp LP Filter
Advanced
Bass
Control
Amplifier Input Section Subwoofer Output
MONO OUTPUT ONLY
Left Output Right Output Left Ch. Right Ch.Filter Freq. (Hz) Filter Freq. (Hz)Infrasonic Freq. (Hz) Remote Bass Port
Full Range
|
Amp Filter
|
Out Filter
Output Mode Filter Slope Mode Mode
|
Slope Input Voltage Input Sens.
Output Polarity
12dB
|
24dB
Filter Mode
LP
|
HP
Bass EQ
Off | On
Off
|
12dB
|
24dB Low
|
High Normal
|
Reversed Off
|
On
40
45
55
65
85
120
200 15
18
25
30
40
50
60 40
45
55
65
80
100
200
0.5
0.7
1.1
1.6
2.7
4.3
20
25
35
45
55
70
80 0
+4
+10
+13
+15
Preamp Output Section Infrasonic Filter “Q” Center Freq. Boost (dB) Amp LP Filter
Advanced
Bass
Control
Amplifier Input Section Subwoofer Output
MONO OUTPUT ONLY
Left Output Right Output Left Ch. Right Ch.Filter Freq. (Hz) Filter Freq. (Hz)Infrasonic Freq. (Hz) Remote Bass Port
Full Range
|
Amp Filter
|
Out Filter
Output Mode Filter Slope Mode Mode
|
Slope Input Voltage Input Sens.
Output Polarity
12dB
|
24dB
Filter Mode
LP
|
HP
Bass EQ
Off | On
Off
|
12dB
|
24dB Low
|
High Normal
|
Reversed Off
|
On
40
45
55
65
85
120
200 15
18
25
30
40
50
60 40
45
55
65
80
100
200
0.5
0.7
1.1
1.6
2.7
4.3
20
25
35
45
55
70
80 0
+4
+10
+13
+15
Connect Master 1200/1 Preamp Output to Slave A 1200/1 Input
Connect Slave A 1200/1 Preamp Output to Slave B 1200/1 Input
Connect Master 1200/1 Input to Signal Source
The Master amplifier’s
“Advanced Bass Control” section
is active and affects all three
amplifiers equally.
The last Slave amplifier’s
“Advanced Bass Control”
section, AMP LP Filter and
“Preamp Output”
are inactive.
This Slave amplifier’s
“Advanced Bass Control” section
and AMP LP Filter are inactive,
but the Full-Range (pass-
through) feature of its “Preamp
Output” feeds the input of the
next Slave
amplifier.
SLAVE A:
SLAVE B:

JL Audio 1200/1v3 Specifications

General

Brand	JL Audio
Model	1200/1v3
Category	Amplifier
Language	English