APPENDIX D:
Master/Slave Configurations
With the flexible
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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
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amplifier and connect the main input signal to that amplifier (from the source unit or from an
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FilterwTFDUJPOBOEiAdvanced Bass Controlw
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amplifier or amplifiers.
MASTER:
The Master amplifier’s “Advanced Bass Control”section is active and affects all three amplifiers equally.
Here is the procedure for implementing a | 3) The input sensitivity of the two amplifiers |
i.BTUFS4MBWFwDPOGJHVSBUJPO | needs to be adjusted independently. To |
| properly calibrate the amplifiers for |
4FUUIFi.BTUFSwBNQMJGJFSTiOutput Modew | maximum, identical, clean output, please |
TXJUDIUPUIFDFOUFSiAmp FilterwQPTJUJPO | refer to Appendix A (page 14). After using this |
This will send a parallel, | procedure, you can then adjust the level of the |
GSPNUIFi.BTUFSwBNQMJGJFSTiAmp LP Filterw | amplifiers by adjusting the input sensitivities |
section to its preamp outputs. | downward, if the amplifiers require attenuation |
| to achieve the desired system balance. If the |
$POOFDUBO3$"DBCMFGSPNUIFi.BTUFSw | input sensitivities are adjusted, the amplifiers |
amplifier’s preamp outputs to the main input | must be recalibrated to ensure identical power |
PGUIFGJSTUi4MBWFwBNQMJGJFS4FUUIFiSlavew | output levels. |
BNQMJGJFSTiAmp LP FilterwUPUIFiOffw |
|
position. This will defeat the LP filter and the | Note:5IFiInput RangewTXJUDIPOBMMi4MBWFw |
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| UIFi.BTUFSwBNQMJGJFSJTIJHIWPMUBHFBOEJUT |
| TXJUDIJTTFUUPiHighw"MMTJHOBMTQBTTFEPVU |
| of the preamp outputs of the amplifier are |
| DPNQBUJCMFXJUIUIFiLowwTFUUJOHPOUIFiInput |
| RangewDPOUSPM |
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 |
| 45 | +10 |
| Mode Slope | Input Voltage | Input Sens. | Output Polarity | ||
| 1.1 | 2.7 | 35 | 55 | +4 | +13 | |||||||||
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| 0.7 |
| 25 | 70 |
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Full Range Amp Filter Out Filter | 12dB 24dB |
| Off On | 0.5 | 4.3 | 20 | 80 | 0 | +15 | Off 12dB 24dB | Low High |
| NormalReversed | ||
|
| 65 | Filter Mode | 30 |
| Bass EQ |
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| 65 |
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| 55 | 85 | 25 | 40 |
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| Advanced | 55 | 80 |
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| 45 | 120 |
| 18 | 50 |
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| Bass |
| 45 | 100 |
|
| MONO OUTPUT ONLY |
| 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. |
4)If you would like to run a third amplifier
JOi4MBWFwDPOGJHVSBUJPOTFMFDUUIFiFull- RangewQPTJUJPOPOUIFiOutput Modew TXJUDIPGUIFGJSTUi4MBWFwBNQMJGJFS5IFO connect an RCA cable from the first i4MBWFwBNQMJGJFSTQSFBNQPVUQVUTUPUIF TFDPOEi4MBWFwBNQMJGJFS"TZPVEJEXJUI UIFGJSTUi4MBWFwBNQMJGJFSTFUUIFTFDPOE i4MBWFwBNQMJGJFSTiAmp LP FilterwUPUIF iOffwQPTJUJPO5IFODBMJCSBUFUIFUIJSE BNQMJGJFSTiInput RangewBOEiInput Sens.wDPOUSPMTJOUIFTBNFNBOOFSBTZPV did for the second amplifier.
Additional amplifiers may be added to this i.BTUFS4MBWFwDPOGJHVSBUJPOGPMMPXJOHUIFTBNF
procedure as in step 4.
Once you match the input sensitivities of
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BNQMJGJFSTiAmp LP FilterwBOEiAdvanced
Bass ControlwGFBUVSFTUPDPOUSPMUIFi4MBWFw
amplifier(s). If the remote bass control
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amplifier to control all the amplifiers in the
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4MBWFwDPOGJHVSBUJPOXJUIPOFi.BTUFSw UPQ BNQMJGJFS BOEUXPi4MBWFwBNQMJGJFST4XJUDIFT BOEDPOUSPMTUIBUBSFEFGFBUFEJOUIFi4MBWFw
amplifiers are printed in gray.
SLAVE (A):
This Slave amplifier’s “Advanced Bass Control”section and AMP LP Filter are inactive, but the
Connect Master 1000/1 Preamp Output to Slave A 1000/1 Input |
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| Connect Master 1000/1 Input to Signal Source | |||||||||
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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 |
| 45 |
| +10 |
| Mode Slope | Input Voltage | Input Sens. | Output Polarity | ||
|
| 1.1 | 2.7 | 35 | 55 | +4 | +13 | |||||||||
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| 0.7 |
| 25 | 70 |
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Full Range Amp Filter Out Filter | 12dB 24dB |
|
| Off On | 0.5 | 4.3 | 20 | 80 | 0 | +15 | Off 12dB 24dB | Low High |
| NormalReversed | ||
|
| 65 | Filter Mode |
| 30 | Bass EQ |
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| 65 |
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| 55 | 85 | 25 | 40 |
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| Advanced | 55 | 80 |
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| 45 | 120 |
| 18 | 50 |
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| Bass |
| 45 | 100 |
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| MONO OUTPUT ONLY |
| 40 | 200 | LP HP | 15 | 60 | Off On |
|
|
| Control |
| 40 | 200 |
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| |
Left Output Right Output | Filter Freq. (Hz) | Infrasonic Freq. (Hz) | Remote Bass Port | Filter Freq. (Hz) | Left Ch. | Right Ch. |
SLAVE (B):
The last Slave amplifier’s “Advanced Bass Control” section, AMP LP Filter and “Preamp Output”
are inactive.
Connect Slave A 1000/1 Preamp Output to Slave B 1000/1 Input |
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Preamp Output Section |
| Infrasonic Filter | “Q” |
| Center Freq. | Boost (dB) | Amp LP Filter | Amplifier Input Section |
| |||||||
Output Mode | Filter Slope |
|
| Mode | 1.6 |
| 45 |
| +10 |
| Mode Slope | Input Voltage | Input Sens. | Output Polarity | ||
|
| 1.1 | 2.7 | 35 | 55 | +4 | +13 | |||||||||
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| 0.7 |
| 25 | 70 |
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Full Range Amp Filter Out Filter | 12dB 24dB |
|
| Off On | 0.5 | 4.3 | 20 | 80 | 0 | +15 | Off 12dB 24dB | Low High |
| NormalReversed | ||
|
| 65 | Filter Mode |
| 30 | Bass EQ |
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| 65 |
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| 55 | 85 | 25 | 40 |
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| Advanced | 55 | 80 |
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| 45 | 120 |
| 18 | 50 |
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| Bass |
| 45 | 100 |
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| 40 | 200 | LP HP | 15 | 60 | Off On |
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| Control |
| 40 | 200 |
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Left Output Right Output | Filter Freq. (Hz) | Infrasonic Freq. (Hz) | Remote Bass Port | Filter Freq. (Hz) | Left Ch. | Right Ch. |
Subwoofer Output
MONO OUTPUT ONLY
18 JL Audio - 1000/1v2 Owner’s Manual | 19 |
