dbx DriveRack PA User Manual page 16

Section 1
High Amplifier
Select an amplifier
>Crwn MacroTech 1202
Auto EQ : Pink Noise
Mic Level
Turn Up Level
Pink Level > 18dB
Graphic EQ Setup
Select GEQ as Dual
Mono or Stereo
AFS
>Dual Mono
Fixed Filter Setup
Done
F F F F F F
Auto EQ Warning
RTA INPUT button
must be pressed.
AFS
Select Number of
fixed filters. > 6
F F F F F F L L L L L L
Main Speaker
Select Main PA
JBL SRX
>SR4702X Passive
Auto EQ : Pink Noise
Mic Level
Turn Up Level
Pink Level > 18dB
AFS
Select fixed type
> Speech
AFS WIZARD
8
DriveRack
Getting Started
High Amplifier
panel RTA XLR input, and press the <RTA Input> button. It is recommended that you use the
Select Sensitivity
optional dbx RTA-M microphone. If you wish to bypass the previous
Crwn MacroTech 1202
steps all together, from program mode, press the <RTA Input> button, or press the <NEXT >0.775 Volts
PG> button and the display will appear something like this:
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E
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Q
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RESPONSE
Main Speaker
• You can now select any one of the several different Frequency responses for the Auto EQ.
Select Main PA
The options are: Flat (0), and Response A-D, and Low, Medium and High Precision. Once
JBL SRX
you have selected your desired EQ Frequency response, press the <NEXT PG> button and
>SR4702X Passive
the display will appear as follows:
L L L L L L
Auto EQ
Mic Level
Turn Up Level
Pink Level > 18dB
• You will now proceed to "Pink" the room by adjusting the Pink level. The range of bar graph
AFS
is -30dBu to +20dBu. Be certain to raise the pink noise level to the level to be used during
Select fixed type
> Speech
the performance. Once the Pink level has been adjusted to the desired volume, press the
Sub Speaker
<NEXT PG> button and the Auto EQ sequence will begin. The display will either show the
Select Sub PA
graphic EQ or the RTA. Rotating the <DATA> wheel clockwise and counter clockwise will
toggle between the two modes. You can also select either mode to default to in the Utility
>None
menu. Regardless, the display will appear something like this:
L R
Auto EQ
• At this point, the DriveRack
dent left and right graphic EQs, you will auto EQ each side independently. If you are using
Slowly Increase the
a stereo-linked EQ, both sides will be EQ'd simultaneously. Auto EQ can be aborted at any
mixer gain to
desired level.
point in the process by pressing the <NEXT PG> button. Upon completion of the Auto EQ
F F F F F F L L L L L L
Wizard, you can return to program mode by releasing the <RTA Input> button and pressing
the <PROGRAM> button.
For more information regarding the Auto EQ section, please refer to the Auto EQ Optimization
Tips information located in the Appendix section.
®
• The DriveRack PA also offers its exclusive AFS (Advanced Feedback Suppression) module.
This unique feature now makes unwanted feedback in a PA system a thing of the past. The
AFS Wizard will lead you through the setup of of the fixed filters of the AFS module. From
® PA Wizard menu, rotate the <DATA> wheel until the display appears as follows:
DriveRack
®
PA User Manual
High Amp Level
Adjust level
same as your amp
>25
C PRECISION LOW
: Pink Noise L
High Amplifier
Select an amplifier
>Crwn MacroTech 1202
®
PA will automatically EQ the room. If you are using indepen-
DriveRack
Sub Speaker
Select Sub PA
>None
R
Auto EQ
Slowly Increase the
mixer gain to
desired level.
F F F F F F L L L L L L
Auto EQ : Pink Noise
Mic Level
Turn Up Level
Pink Level > 18dB
AFS
Fixed Filter Setup
Done
F F F F F F L L L L L L
®
®
PA
Low Amp Bridging
Select
same as your amp
>Normal
High Amplifier
Select an amplifier
>Crwn MacroTech 120
Auto EQ : Pink No
Mic Level
Turn Up Level
Pink Level > 18d
AFS
Fixed Filter Setu
Done
F F F F F F L L L L
High Amplifier
Select Sensitivity
Crwn MacroTech 1202
>0.775 Volts
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Q
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RESPONSE C PRECISION
®
®
L