JL Audio 500/1v2 owner manual Appendix D Master/Slave Configurations, Slave a, Master/Slave chain

Page 10

Appendix D:

Master/Slave Configurations

With the flexible on-board crossovers and processing incorporated into the 500/1v2, it is possible to connect multiple 500/1v2’s in a “Master/Slave” configuration, with each amplifier 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 determine which amplifier will be the “Master” amplifier and connect the main input signal to that amplifier (from the source unit or from an outboard processor). This amplifier’s “Amp LP

Filter” section and “Advanced Bass Control” features will process the signal for the “Slave” amplifier or amplifiers.

Master:

Here is the procedure for implementing a “Master/Slave” configuration:

1)Set the “Master” amplifier’s “Output Mode” switch to the center “Amp Filter” position.

This will send a parallel, mono-summed signal from the “Master” amplifier’s “Amp LP Filtersection to its preamp outputs.

2)Connect an RCA cable from the “Master” amplifier’s preamp outputs to the main input of the first “Slave” amplifier. Set the “Slave” amplifier’s “Amp LP Filter” to the “Offposition. This will defeat the LP filter and the bass processing of this “Slave” amplifier.

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: The “Input Range” switch on all “Slave” amplifiers needs to be set to “Low”, even if the “Master” amplifier is high voltage and its switch is set to “High”. All signals passed out of the preamp outputs of the amplifier are compatible with the “Low” setting on the “Input Range” control.

The “Signal Sensingturn-on feature will not work on “Slave” amplifiers, but “Slave” amplifiers can be turned on and off by a “Master” amplifier operating in signal sensing turn-on mode.

Simply connect the “Master” amplifier’s

Remote” connection, to the “Slave” amplifier(s) “Remote” connection(s).

Do not increase the “Input Sens.” setting for any amplifier in the system beyond the maximum level established during the procedure outlined in Appendix A (page 14). Doing so will result in audible distortion and possible speaker damage.

4)If you would like to run a third amplifier in

“Slave” configuration, select the Full-Range position on the “Output Mode” switch of the first “Slave” amplifier. Then, connect an RCA cable from the first “Slave” amplifier’s preamp outputs to the second “Slave” amplifier. As you did with the first “Slave” amplifier, set the second “Slave” amplifier’s “Amp LP Filter” to the “Off” position. Then, calibrate the third amplifier’s “Input Range” and “Input Sens.controls in the same manner as you did for the second amplifier.

The Master amplifier’s “Advanced Bass Control” section is active and affects all three amplifiers equally.

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.

+12VDC Ground Remote

 

 

Preamp Output Section

Infrasonic Filter

 

“Q”

 

 

Center Freq.

Boost (dB)

Amp LP Filter

 

 

Amplifier Input Section

Subwoofer Output

 

Output Mode

Filter Slope

 

Mode

1.6

 

 

 

40

 

 

+10

Mode Slope

Input Voltage

Input Sens. Signal Sensing

 

 

 

1.1

 

2.7

30

 

60

+4

 

+13

 

 

 

 

 

 

 

 

 

 

 

 

 

0.7

 

 

 

25

 

 

 

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Full Range Amp Filter Out Filter

12dB 24dB

 

Off On

0.5

 

4.3

20

80

0

+15

Off 12dB 24dB

 

Low High

 

 

Off On

 

 

 

65

Filter Mode

 

30

Bass EQ

 

 

65

 

55

80

22

45

Advanced

55

80

500/1v2

 

 

 

 

 

 

 

 

45

100

 

18

55

 

Bass

45

100

Monoblock Subwoofer Amplifier

40

200

LP HP

15

60

Off On

Control

40

MONO OUTPUT ONLY

 

200

Left Output Right Output

Filter Freq. (Hz)

Infrasonic Freq. (Hz)

Remote Bass Port

Filter Freq. (Hz)

Left Ch.

Right Ch.

Connect Master 500/1 Input to Signal Source

Connect Master 500/1 Preamp Output to Slave A 500/1 Input

Slave (A):

+12VDC Ground Remote

Preamp Output Section

Infrasonic Filter

“Q”

Center Freq.

Boost (dB)

Amp LP Filter

Amplifier Input Section

Subwoofer Output

 

Output Mode

Filter Slope

Mode

1.6

 

40

 

+10

Mode Slope

Input Voltage Input Sens. Signal Sensing

 

 

1.1

2.7 30

60

+4

+13

 

 

 

 

0.7

 

25

75

 

 

 

 

Full Range Amp Filter Out Filter

12dB 24dB

Off On

0.5

4.3

20

80

0

+15 Off 12dB 24dB

Low High

Off On

 

 

65

Filter Mode

 

30

Bass EQ

 

 

65

 

55

80

22

45

Advanced

55

80

500/1v2

 

 

 

 

 

 

 

 

45

100

 

18

55

 

Bass

45

100

Monoblock Subwoofer Amplifier

40

200

LP HP

15

60

Off On

Control

40

MONO OUTPUT ONLY

 

200

Left Output Right Output

Filter Freq. (Hz)

Infrasonic Freq. (Hz)

Remote Bass Port

Filter Freq. (Hz)

Left Ch.

Right Ch.

Additional amplifiers may be added to this

“Master/Slave” configuration following the same

procedure as in step 4.

Once you match the input sensitivities of

all the amplifiers, you can use the “Master” amplifier’s “Amp LP Filter” and “Advanced Bass Control” features to control the “Slave” amplifier(s). If the remote bass control (RBC-1) is used, it need only be connected to the “Master”

amplifier to control all the amplifiers in the

“Master/Slave” chain.

Reference the diagram showing a “Master/ Slave” configuration with one “Master” (top amplifier) and two “Slave” amplifiers. Switches and controls that are defeated in the “Slave”

The last Slave amplifier’s “Advanced Bass Control” section, AMP LP Filter and “Preamp Output”

are inactive.

Connect Slave A 500/1 Preamp Output to Slave B 500/1 Input

Slave (B):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12VDC

Ground

Remote

Preamp Output Section

 

Infrasonic Filter

“Q”

 

Center Freq.

Boost (dB)

Amp LP Filter

Amplifier Input Section

Subwoofer Output

 

 

 

Output Mode

Filter Slope

 

 

Mode

1.6

 

 

40

+10

 

Mode Slope

Input Voltage

Input Sens.

Signal Sensing

 

 

 

 

 

 

1.1

2.7

30

60

+4

+13

 

 

 

 

 

 

 

 

 

 

0.7

 

25

75

 

 

 

 

 

 

 

 

 

 

 

Full Range Amp Filter Out Filter

12dB 24dB

 

 

Off On

0.5

4.3

20

80

0

+15

Off 12dB 24dB

Low High

 

Off On

 

 

 

 

 

 

65

Filter Mode

 

30

Bass EQ

 

 

 

 

 

 

65

 

 

 

 

 

 

 

 

55

80

22

45

 

 

 

Advanced

55

80

 

 

 

 

 

500/1v2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

100

 

18

55

 

 

 

 

Bass

 

45

100

 

 

 

MONO OUTPUT ONLY

Monoblock Subwoofer Amplifier

 

40

200

LP HP

15

60

Off On

 

 

 

Control

 

40

200

 

 

 

Left Output Right Output

Filter Freq. (Hz)

Infrasonic Freq. (Hz)

Remote Bass Port

Filter Freq. (Hz)

Left Ch.

Right Ch.

amplifiers are printed in gray.

18 JL Audio - 500/1v2 Owner’s Manual

19

Image 10
Contents Monoblock subwoofer amplifier Safety Considerations Installation ApplicationsPlanning Your Installation Protect Your HearingMany vehicles employ small 10 AWG Power ConnectionsProduct Description Fuse RequirementsTurn-On Options Amplifier Input SectionPreamp Output Section Input Sensitivity Adjustment LocatedAmplifier Low-Pass Filter Precise Frequency Selection The filterADVANCED Bass Control Section Subwoofer OutputStatus Indicator Lights Protection Circuitry Thermal Red lights to indicate thatAppendix B 500/1v2 Specifications General Specifications Appendix a Input Sensitivity Level SettingNine-Step Procedure Dimensions LxWxHActual Detent Panel Appendix C  Precise Frequency Selection ChartFull-clockwise Detent PanelMaster Appendix D Master/Slave ConfigurationsMaster/Slave configuration following the same Slave aMy amplifier doesn’t turn on My amplifier turns on, but there is no outputINSTALLATION NOTES 500/1v2JL Audio, Inc Limited Warranty Amplifiers USAIf you need service on your JL Audio product International Warranties