dbx DriveRack PA, Руководство пользователя

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Getting Started
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8
Section 1
DriveRack
®
PA
panel RTA XLR input, and press the
<RTA Input>
button. It is recommended that you use the
optional dbx RTA-M microphone. If you wish to bypass the previous
steps all together, from program mode, press the
<RTA Input>
button, or press the
<NEXT
PG> button and the display will appear something like this:
• You can now select any one of the several different Frequency responses for the Auto EQ.
The options are: Flat (0), and Response A-D, and Low, Medium and High Precision. Once
you have selected your desired EQ Frequency response, press the <NEXT PG> button and
the display will appear as follows:
• You will now proceed to “Pink” the room by adjusting the Pink level. The range of bar graph
is -30dBu to +20dBu. Be certain to raise the pink noise level to the level to be used during
the performance. Once the Pink level has been adjusted to the desired volume, press the
<NEXT PG>
button and the Auto EQ sequence will begin. The display will either show the
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
menu. Regardless, the display will appear something like this:
• At this point, the DriveRack ® PA will automatically EQ the room. If you are using indepen-
dent left and right graphic EQs, you will auto EQ each side independently. If you are using
a stereo-linked EQ, both sides will be EQ’d simultaneously. Auto EQ can be aborted at any
point in the process by pressing the
<NEXT PG>
button. Upon completion of the Auto EQ
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.
AFS WIZARD
• 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
DriveRack ® PA Wizard menu, rotate the
<DATA>
wheel until the display appears as follows:
Auto EQ WIZARD
AFS WIZARD
DriveRack PA WIZARD
St Tri-Amp
U 1
System Setup
AFS WIZARD
DriveRack PA WIZARD
Connect mic to RTA
input. Press RTA
input button.
Auto EQ
must be pressed.
Auto EQ Warning
Mic Level
Turn Up Level
Pink Level > 18dB
Auto EQ : Pink Noise
System Setup
Auto EQ WIZARD
DriveRack PA WIZARD
Select Number of
fixed filters. > 6
AFS
Select Input as MONO
or STEREO.
>STEREO
Input Setup
Select GEQ as Dual
Mono or Stereo
>Dual Mono
Graphic EQ Setup
Select Main PA
JBL SRX
>SR4702X Passive
Main Speaker
Select Sub PA
>None
Sub Speaker
Select an amplifier
>Crwn MacroTech 1202
High Amplifier
Select Sensitivity
Crwn MacroTech 1202
>0.775 Volts
High Amplifier
F F F F F F L L L L L L
Please turn down the
mixer gain. Press
AFS
NEXT PG when done.
Select fixed type
> Speech
AFS
mixer gain to
desired level.
Slowly Increase the
F F F F F F L L L L L L
Fixed Filter Setup
Done
AFS
F F F F F F L L L L L L
L R
Mic Level
Turn Up Level
Pink Level > 18dB
Auto EQ : Pink Noise
Auto EQ
RESPONSE C PRECISION LOW
A
u
t
o
E
Q
Select
same as your amp
>Normal
Low Amp Bridging
Adjust level
same as your amp
>25
High Amp Level
System Setup
Auto EQ WIZARD
AFS WIZARD
RTA INPUT button
Auto EQ WIZARD
AFS WIZARD
DriveRack PA WIZARD
St Tri-Amp
U 1
System Setup
AFS WIZARD
DriveRack PA WIZARD
Connect mic to RTA
input. Press RTA
input button.
Auto EQ
must be pressed.
Auto EQ Warning
Mic Level
Turn Up Level
Pink Level > 18dB
Auto EQ : Pink Noise
System Setup
Auto EQ WIZARD
DriveRack PA WIZARD
Select Number of
fixed filters. > 6
AFS
Select Input as MONO
or STEREO.
>STEREO
Input Setup
Select GEQ as Dual
Mono or Stereo
>Dual Mono
Graphic EQ Setup
Select Main PA
JBL SRX
>SR4702X Passive
Main Speaker
Select Sub PA
>None
Sub Speaker
Select an amplifier
>Crwn MacroTech 1202
High Amplifier
Select Sensitivity
Crwn MacroTech 1202
>0.775 Volts
High Amplifier
F F F F F F L L L L L L
Please turn down the
mixer gain. Press
AFS
NEXT PG when done.
Select fixed type
> Speech
AFS
mixer gain to
desired level.
Slowly Increase the
F F F F F F L L L L L L
Fixed Filter Setup
Done
AFS
F F F F F F L L L L L L
L R
Mic Level
Turn Up Level
Pink Level > 18dB
Auto EQ : Pink Noise
Auto EQ
RESPONSE C PRECISION LOW
A
u
t
o
E
Q
Select
same as your amp
>Normal
Low Amp Bridging
Adjust level
same as your amp
>25
High Amp Level
System Setup
Auto EQ WIZARD
AFS WIZARD
RTA INPUT button
Auto EQ WIZARD
AFS WIZARD
DriveRack PA WIZARD
St Tri-Amp
U 1
System Setup
AFS WIZARD
DriveRack PA WIZARD
Connect mic to RTA
input. Press RTA
input button.
Auto EQ
must be pressed.
Auto EQ Warning
Mic Level
Turn Up Level
Pink Level > 18dB
Auto EQ : Pink Noise
System Setup
Auto EQ WIZARD
DriveRack PA WIZARD
Select Number of
fixed filters. > 6
AFS
Select Input as MONO
or STEREO.
>STEREO
Input Setup
Select GEQ as Dual
Mono or Stereo
>Dual Mono
Graphic EQ Setup
Select Main PA
JBL SRX
>SR4702X Passive
Main Speaker
Select Sub PA
>None
Sub Speaker
Select an amplifier
>Crwn MacroTech 1202
High Amplifier
Select Sensitivity
Crwn MacroTech 1202
>0.775 Volts
High Amplifier
F F F F F F L L L L L L
Please turn down the
mixer gain. Press
AFS
NEXT PG when done.
Select fixed type
> Speech
AFS
mixer gain to
desired level.
Slowly Increase the
F F F F F F L L L L L L
Fixed Filter Setup
Done
AFS
F F F F F F L L L L L L
L R
Mic Level
Turn Up Level
Pink Level > 18dB
Auto EQ : Pink Noise
Auto EQ
RESPONSE C PRECISION LOW
A
u
t
o
E
Q
Select
same as your amp
>Normal
Low Amp Bridging
Adjust level
same as your amp
>25
High Amp Level
System Setup
Auto EQ WIZARD
AFS WIZARD
RTA INPUT button
DriveRack
®
PA User Manual