Jl-audio 500/1v2 Manuel d'utilisateur télécharger pdf (Page 10)

18 | JL Audio - 500/1v2 Owner’s Manual

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 Sensing” turn-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.

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”

amplifiers are printed in gray.

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.

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 Filter”

section 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 “Off”

position. This will defeat the LP filter and the

bass processing of this “Slave” amplifier.

MASTER:

+12VDC Ground Remote 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. Signal Sensing

12dB

24dB

Filter Mode

Bass EQ

Off

12dB

24dB Low

High Off

OnOff

100

200 15

60 40

100

200

0.5

0.7

1.1

1.6

2.7

4.3

80 0

+10

+13

+15

50 0 /1v2

Monoblock Subwoofer Amplifier

+12VDC Ground Remote 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. Signal Sensing

12dB

24dB

Filter Mode

Bass EQ

Off

12dB

24dB Low

High Off

OnOff

100

200 15

60 40

100

200

0.5

0.7

1.1

1.6

2.7

4.3

80 0

+10

+13

+15

50 0 /1v2

Monoblock Subwoofer Amplifier

+12VDC Ground Remote 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. Signal Sensing

12dB

24dB

Filter Mode

Bass EQ

Off

12dB

24dB Low

High Off

OnOff

100

200 15

60 40

100

200

0.5

0.7

1.1

1.6

2.7

4.3

80 0

+10

+13

+15

50 0 /1v2

Monoblock Subwoofer Amplifier

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

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

Connect Master 500/1 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:

1 2 ... 5 6 7 8 9 10 11 12 13

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Jl-audio 500/1v2 Manuel d'utilisateur Page 10

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