dbx PX Quickstart Guide

®

®

®

®

®

®

PX

Quick Start Guide

An illustrated guide to setting up your DriveRack® PX

This Quick Start Guide will walk you through your first and subsequent setups, step by step. To keep things
simple, we’ll use a common powered speaker setup: two mains and two subwoofers, shown below. (For dia­grams of additional setups, refer to your User’s Manual.) If you’re not using subwoofers, just disregard instruc­tions that refer to subwoofers. For this example, we’ll use JBL PRX515’s and JBL PRX518’s, but you can use
almost any powered speakers and powered subwoofers with the DriveRack PX. When using speakers not listed
in the DriveRack PX, you should select ‘Custom’ for these components.

If you’re using the DriveRack PX for the first time, begin on page 3.

If you’ve already set up and saved a preset for your powered speakers, and just want to optimize your powered
speakers for a new room or venue, begin on page 14.

Mixer

4 6

4 6

4 6

4 6

4 6

4 6

4 6

4 6

2

2

8

0

0

10

10

Aux 1

Aux 1

4 6

4 6

2

2

8

0

10

0

10

Aux 2

Aux 2

-10+1

-10+1

-2

+2

-2

+2

-3

+3

-3

-4

+4

-4

+4

-5

+5

-5

+5

Pan

Pan

Mute

Mute

L / R

L / R

+10

+10

+5

+5

0

0

-5

-5

-10

-10

-20

-20

-30

-30

-

-

1 2 3 4

2

2

8

8

8

0

0

10

10

Aux 1

Aux 1

4 6

4 6

2

8

2

8

8

0

10

0

10

Aux 2

Aux 2

-10+1

-10+1

-2

+2

-2

+2

+3

-3

+3

-3

+3

-4

+4

-4

+4

-5

+5

-5

+5

Pan

Pan

Mute

Mute

L / R

L / R

+10

+10

+5

+5

0

0

-5

-5

-10

-10

-20

-20

-30

-30

-

-

2

2

2

2

0

Aux 1

4 6

2

0

Aux 2

-10+1

-2

-3

-4

-5

Pan

Mute

L / R

+10

+5

0

-5

-10

-20

-30

-

5

8

8

8

8

0

0

0

10

10

10

10

Aux 1

Aux 1

Aux 1

4 6

4 6

4 6

2

8

2

8

2

8

8

0

10

0

10

0

10

10

Aux 2

Aux 2

Aux 2

-10+1

-10+1

-10+1

+2

-2

+2

-2

+2

-2

+2

+3

-3

+3

-3

+3

-3

+3

+4

-4

+4

-4

+4

-4

+4

+5

-5

+5

-5

+5

-5

+5

Pan

Pan

Pan

Mute

Mute

Mute

L / R

L / R

L / R

+10

+10

+10

+5

+5

+5

0

0

0

-5

-5

-5

-10

-10

-10

-20

-20

-20

-30

-30

-30

-

-

-

6

R

PX

JBL PRX515

UL 60065 IEC 60065
120V - 60Hz

Left/Mono

Sub

SUB OUTPUTS

Right

Sub

Manufactured under the following U.S. Patents:
3,789,143; 4,182,993; 6,195,029; 7,203,324.

Left

Main

Left/Mono

Input

Right

Main

Right
Input

GND

JBL PRX515

JBL PRX518

JBL PRX518

2

First-time Setup - Creating a New Preset

1. Remove the DriveRack PX from its box.

Rack mount the DriveRack PX and connnect the power cord.

SUB OUTPUTS

R

PX

UL 60065 IEC 60065
120V - 60Hz

Manufactured under the following U.S. Patents:
3,789,143; 4,182,993; 6,195,029; 7,203,324.

Attach power cord here.

2. Connect the mixer left and right outputs to the DriveRack PX Left/Mono and Right Inputs.

Mixer

4 6

4 6

4 6

2

2

8

2

8

2

8

10

10

10

0

0

0

Aux 1

Aux 1

Aux 1

4 6

4 6

4 6

2

2

8

2

8

2

8

0

10

0

10

0

10

Aux 2

Aux 2

Aux 2

-10+1

-10+1

-10+1

-2

+2

-2

+2

-2

+2

-3

+3

-3

+3

-3

+3

-4

+4

-4

+4

-4

+4

-5

+5

-5

+5

-5

+5

Pan

Pan

Pan

Mute

Mute

Mute

L / R

L / R

L / R

+10

+10

+10

+10

+5

+5

+5

+5

0

0

0

0

-5

-5

-5

-5

-10

-10

-10

-10

-20

-20

-20

-20

-30

-30

-30

-30

-

-

-

-

1 2 3 4

GND

4 6

4 6

4 6

4 6

4 6

0

4 6

0

-10+1

-2

-3

-4

-5

Mute

L / R

2

8

2

8

2

8

2

8

8

10

Aux 1

2

8

10

Aux 2

+2

+3

-3

+4

-4

+5

Pan

+10

+5

0

-5

-10

-20

-30

-

10

10

10

10

0

0

0

0

Aux 1

Aux 1

Aux 1

Aux 1

4 6

4 6

4 6

4 6

2

8

2

8

2

8

8

0

10

0

10

0

10

0

10

Aux 2

Aux 2

Aux 2

Aux 2

-10+1

-10+1

-10+1

-10+1

-2

+2

-2

+2

-2

+2

-2

+2

+3

-3

+3

-3

+3

-3

+3

+4

-4

+4

-4

+4

-4

+4

-5

+5

-5

+5

-5

+5

-5

+5

Pan

Pan

Pan

Pan

Mute

Mute

Mute

Mute

L / R

L / R

L / R

L / R

+10

+10

+10

+5

+5

+5

0

0

0

-5

-5

-5

-10

-10

-10

-20

-20

-20

-30

-30

-30

-

-

-

5

6

R

PX

UL 60065 IEC 60065
120V - 60Hz

3. Make sure your powered speakers and

subwoofers are turned off.

Connect the Left and Right “OUTPUTS” to
the left and right main powered speakers.

Connect the Left/Mono and Right “SUB
OUTPUTS” to the left and right subwoof­ers.

SUB OUTPUTS

Manufactured under the following U.S. Patents:
3,789,143; 4,182,993; 6,195,029; 7,203,324.

R

PX

JBL PRX515

UL 60065 IEC 60065
120V - 60Hz

Left/Mono

Sub

SUB OUTPUTS

Right

Sub

Manufactured under the following U.S. Patents:
3,789,143; 4,182,993; 6,195,029; 7,203,324.

Main

Left/Mono

Input

Left

Right
Main

Right
Input

GND

GND

JBL PRX515

JBL PRX518

JBL PRX518

3

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

4. Turn the mixer master faders down. Turn on the mixer.

Make sure the controls on your powered speakers are set the same on both speakers. For example, if
you’re using subs, and they have a polarity setting, make sure they’re both set to the same polarity.
Also, if your powered speakers have a Mic/Line setting, make sure they’re both set to Line, and if they
have their own EQ settings, disable the EQ settings on the powered speakers. Turn the level control
knobs on your powered speakers all the way down. Turn on your powered speakers and subwoofers now.

5. Now let’s create a preset to match your powered speakers. This preset is based on JBL PRX515’s and

JBL PRX518’s for illustration purposes.

Press and hold the SETUP button
until “System Setup WIZARD” appears
in the display.

6.

S

A

L

E

U

F

Q

1

R

B

USER

S

StOutwStSub

PREV PG

C

P L

R

L

SUB

R

L

OUT

P

L

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

Press the NEXT PG button.

PREV PG

SUBHARMONIC

System Setup WIZARD

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

7.

4

A. For this example, turn the
Data Wheel to select STEREO.

B. Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

8.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

A. Turn the Data Wheel to select your
main speakers (for our example,
select PRX515).

B. Press the NEXT PG button.

9.

Main Speakers

JBL PRX500

PRX515

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

A. Turn the Data Wheel to select your
subwoofer speakers (for our example,

B. Press the NEXT PG button.

select PRX518S STEREO).

PREV PG

Sub Speakers

Sub(s)

JBL PRX500

PRX518S STEREO

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

10.

A. Set the level knobs on your main speakers
to match the position shown on the display.

Main Speaker Levels

Adjust speaker
levels as shown
> 36% Level

(Note that you also have the option to turn the Data
Wheel to adjust the level shown on the display
to match a preferred setting on your speakers.)

B. Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

5

11.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

A. Set the level knobs on your subwoofer speakers
to match the position shown on the display.

B. Press the NEXT PG button.

12.

Sub Speaker Levels

PREV PG

SUBHARMONIC

NEXT PG

COMP/LIMITER

SETUP

EQ

Adjust speaker
levels as shown
> 21% Level

PRESET

RECALL

STORE

UTILITY

UTILITY

AFS

WIZARD

WIZARD

(Note that you also have the option to turn the Data
Wheel to adjust the level shown on the display
to match a preferred setting on your speakers.)

Press the Data Wheel to load the preset you just created.

Load New Preset

Press Select to Load

> New Preset

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

13.

6

A. Connect the included dbx M2 RTA mic to the
RTA MIC INPUT using an XLR cable at least 25’ long.

Auto Level

Connect mic to RTA
input. Press RTA
input button.

(Important Note! This feature requires that signal be present
from both main outputs of the processor! If you are not using

B. Press the RTA INPUT button.

both of these outputs or you do not want to use this feature,
you can skip this step by pressing the PRESET button. You can
still Auto EQ the system by following the prompts in the
display. If there are no prompts in the display, press and hold
the EQ button for 5 seconds. Proceed to step 19.)

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

14. With the RTA mic connected, place the RTA

mic on a mic stand and aim it between the
left and right main speakers approximately
25’ away.

15. Turn the Data Wheel until pink noise is playing through your speakers at performance level (the same

volume you intend to use during your performance). The words “SET TO PERFORMANCE LEVEL” will ap­pear in the display when you have passed the minimum threshold. Set level higher as needed.

B. Press the NEXT PG button
when your performance

A. Turn the Data Wheel to adjust pink noise level.

level is reached.

Auto Level

0 dB to 6 dB typical.

When performance level is reached, press the NEXT PG button. The DriveRack PX will now adjust the
balance between left/right levels for your main speakers (and your subs, if you have them). Note that
you may be prompted to readjust your speaker knob settings if needed.

16. When the display reads “Auto Level Complete,” release the RTA INPUT button.

Auto Level Complete

Release RTA INPUT
button to exit.

Press the RTA INPUT button to release.

PREV PG

SUBHARMONIC

PRESET

RECALL

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

SETUP

EQ

AFS

WIZARD

WIZARD

7

17.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Press the NEXT PG button.

PRX515 wSub Loaded

and levels balanced.
<NEXT PG>-Auto EQ
<PRESET)-Exit Wizard

18. Now the Auto-EQ wizard will begin.

DriveRack PX

Auto EQ WIZARD

<NEXT PG> to advance

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

WIZARD

WIZARD

Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

WIZARD

WIZARD

SETUP

EQ

AFS

SETUP

EQ

AFS

19. With the RTA microphone still connected and in the same position as in step 14, press the RTA INPUT

button.

PREV PG

Auto EQ

Connect mic to RTA
input. Press RTA
input button.

SUBHARMONIC

PRESET

RECALL

Press the RTA INPUT button.

8

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

AFS

WIZARD

WIZARD

EQ

20. Turn the Data Wheel to select a frequency response for the Auto-EQ. For our example, select Response

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

C. Then press the <Next pg> button to continue. Auto-EQ will match the curve selected.

A. Turn the Data Wheel
to select a frequency
response for the Auto-EQ.

B. Press the
NEXT PG button.

MED

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

21. Turn the Data Wheel until pink noise is playing through your speakers at performance level. The words

“SET TO PERFORMANCE LEVEL” will appear in the Display when you have passed the minimum threshold.
Set level higher as needed. Press the <Next pg> button to continue.

B. Press the NEXT PG button
when your performance

A. Turn the Data Wheel to adjust pink noise level.

Auto EQ

level is reached.

PREV PG

SUBHARMONIC

NEXT PG

COMP/LIMITER

SETUP

EQ

PRESET

RECALL

STORE

UTILITY

UTILITY

AFS

WIZARD

WIZARD

0 db to 6 dB typical.

22. The Auto-EQ will go through some audible changes as it tunes the speakers to the room. This may take

a few minutes.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

9

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

23. Auto-EQ will complete or finish sending pink noise once it has come as close as possible to matching

the Frequency response you selected earlier. Press the RTA INPUT button to release it and continue on
to the AFS wizard.

NOTE: If the Auto-EQ doesn’t complete after several minutes, you may need to press the RTA INPUT
button to release it and continue on the AFS wizard. You can do this during the Auto-EQ process, or
when the Auto-EQ wizard prompts you.

Auto EQ Complete

Release RTA INPUT
button to exit.

Press the RTA INPUT button.

24. Now the AFS wizard will begin.

<NEXT PG> to advance

DriveRack PX

AFS WIZARD

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

WIZARD

WIZARD

Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

WIZARD

WIZARD

SETUP

EQ

AFS

SETUP

EQ

AFS

25.

10

A. Turn down the mixer Master or
Main level faders on your mixer.

B. Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

WIZARD

WIZARD

SETUP

EQ

AFS

26. Turn the Data Wheel to choose the number of fixed filters to use with Advanced Feedback Suppression.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

These filters, once populated or FIXED, will stay at the set frequency and level. LIVE “L” filters will
change as needed during a performance.

B. Press the

A. Turn the Data Wheel to select the number of fixed filters.

NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

27. Turn the Data Wheel to choose the EQ notch filter width appropriate for your needs. Speech is a wide

filter, Music Low is a narrow filter, Music Medium is a very narrow filter, and Music High is an ultra nar­row filter. We’ll use Music High for our example.

B. Press the

A. Turn the Data Wheel to select the EQ notch filter type.

Music High
Ultra Narrow Notch

NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

NEXT PG

COMP/LIMITER

STORE

SETUP

EQ

AFS

RECALL

UTILITY

UTILITY

WIZARD

WIZARD

28. With the channel faders down, set the mixer’s master level to zero (0 dB). With the microphones you’ll

be using during the performance in place and connected, turn up microphone channel levels until feed­back begins. The AFS will start to populate the Advanced Feedback Suppression fixed filters.

NOTE: Do not talk into any of the microphones or play music. This is only a search for feedback at this
point.

A. Slowly increase the channel gain on your mixer to the desired level.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

11

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

buttons to move between

29. Advanced Feedback Suppression has completed when “Fixed Filter Setup Done. In LIVE mode” appears

on the Display.

NOTE: Out of control feedback is not advised. Please keep this under control manually with the mixer’s
channel or main faders.

Press the NEXT PG button.

Fixed Filter Setup
Done. In LIVE mode.

30. Store your new preset by pressing the STORE button.

P

P L

L

OUT

L

R

L

SUB

R

S

A

L

E

C

U

F

Q

1

R

B

USER

S

PRX515 wSub

PREV PG

SUBHARMONIC

PRESET

RECALL

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

Press the STORE button once.

SETUP

EQ

AFS

WIZARD

WIZARD

SETUP

EQ

AFS

WIZARD

WIZARD

31. Edit the preset’s name. For this example, name it “MY PRESET”.

A. Turn the Data Wheel to
change numbers and letters.

NAME: PRX515 wSub

DATA - SELECTS CHAR
PREV/NEXTPG - LEFT/RIGHT:
PRESS STORE TO ADVANCE

12

B. Press the NEXT or PREV

characters. Repeat step
“A.” to change the next
letter.

PREV PG

SUBHARMONIC

PRESET

RECALL

C. Press the STORE button
to advance.

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

32. Choose the preset’s location.

Inputs

0

6

12

24

36

SIG

Headroom dB

A. Turn the Data Wheel to
change the user preset
number where your new
program will reside.
NOTE: This will replace

the program that currently
resides in that location.

STORE: MY PRESET

Replacing

U1 DJ Setup

PRESS STORE TO ADVANCE

33. Your new preset has now been stored. Congratulations and enjoy.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

B. Press the STORE button
to advance.

SETUP

EQ

AFS

WIZARD

WIZARD

13

Subsequent Setup - Based on an Existing Preset

1. Remove the DriveRack PX from its box.

Rack mount the DriveRack PX and connnect the power cord.

SUB OUTPUTS

R

PX

UL 60065 IEC 60065
120V - 60Hz

Manufactured under the following U.S. Patents:
3,789,143; 4,182,993; 6,195,029; 7,203,324.

Attach power cord here.

2. Connect the mixer left and right outputs to the DriveRack PX Left/Mono and Right Inputs.

Mixer

4 6

4 6

4 6

2

2

8

2

8

2

8

10

10

10

0

0

0

Aux 1

Aux 1

Aux 1

4 6

4 6

4 6

2

2

8

2

8

2

8

0

10

0

10

0

10

Aux 2

Aux 2

Aux 2

-10+1

-10+1

-10+1

-2

+2

-2

+2

-2

+2

-3

+3

-3

+3

-3

+3

-3

-4

+4

-4

+4

-4

+4

-4

-5

+5

-5

+5

-5

+5

Pan

Pan

Pan

Mute

Mute

Mute

L / R

L / R

L / R

+10

+10

+10

+10

+5

+5

+5

+5

0

0

0

0

-5

-5

-5

-5

-10

-10

-10

-10

-20

-20

-20

-20

-30

-30

-30

-30

-

-

-

-

1 2 3 4

GND

4 6

4 6

4 6

4 6

4 6

0

4 6

0

-10+1

-2

-5

Mute

L / R

2

8

2

8

2

8

2

8

8

10

Aux 1

2

8

10

Aux 2

+2

-2

+3

-3

+4

-4

+5

Pan

Mute

L / R

+10

+5

0

-5

-10

-20

-30

-

10

10

10

10

0

0

0

0

Aux 1

Aux 1

Aux 1

Aux 1

4 6

4 6

4 6

4 6

2

8

2

8

2

8

8

0

10

0

10

0

10

0

10

Aux 2

Aux 2

Aux 2

Aux 2

-10+1

-10+1

-10+1

-10+1

+2

-2

+2

-2

+2

-2

+2

+3

-3

+3

-3

+3

-3

+3

+4

-4

+4

-4

+4

-4

+4

-5

+5

-5

+5

-5

+5

-5

+5

Pan

Pan

Pan

Pan

Mute

Mute

Mute

L / R

L / R

L / R

+10

+10

+10

+5

+5

+5

0

0

0

-5

-5

-5

-10

-10

-10

-20

-20

-20

-30

-30

-30

-

-

-

5

6

R

PX

UL 60065 IEC 60065
120V - 60Hz

3. Make sure your powered speakers are

turned off.

Connect the Left and Right “OUTPUTS” to
the left and right main powered speakers.

Connect the Left/Mono and Right “SUB
OUTPUTS” to the left and right subwoof­ers.

SUB OUTPUTS

Manufactured under the following U.S. Patents:
3,789,143; 4,182,993; 6,195,029; 7,203,324.

R

PX

JBL PRX515

UL 60065 IEC 60065
120V - 60Hz

Left/Mono

Sub

SUB OUTPUTS

Right

Sub

Manufactured under the following U.S. Patents:
3,789,143; 4,182,993; 6,195,029; 7,203,324.

Left/Mono

Input

Left
Main

Right

Main

Right
Input

GND

GND

JBL PRX515

14

JBL PRX518

JBL PRX518

4. Turn the mixer master faders down. Turn on the mixer.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Make sure the controls on your powered speakers are set the same on both speakers. For example, if
you’re using subs, and they have a polarity setting, make sure they’re both set to the same polarity.
Also, if your powered speakers have a Mic/Line setting, make sure they’re both set to Line, and if they
have their own EQ settings, disable the EQ settings on the powered speakers. Turn the level control
knobs on your powered speakers all the way down. Turn on your powered speakers and subwoofers now.

5. Now let’s load the preset you created to match your powered speakers (from the first half of this quick

start guide).

PREV PG

NEXT PG

SETUP

A

L

E

F

Q

1

R

USER

S

--Loaded--

S

C

U
B

P

P L

L

OUT

L

R

L

SUB

R

6. Turn the Data Wheel until the preset titled “MY PRESET” appears in the display.

Turn the Data Wheel until
MY PRESET appears in the display.

A

L

E

F

Q

1

R

USER

S

MY PRESET

S

C

U
B

P

P L

L

OUT

L

R

L

SUB

R

SUBHARMONIC

PRESET

RECALL

COMP/LIMITER

STORE

UTILITY

UTILITY

EQ

AFS

WIZARD

WIZARD

Press and hold the
PRESET/RECALL button
until “--Loaded--” is
flashing in the display.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

7. Press the Data Wheel to load “MY PRESET.”

S

A

L

E

C

U

F

Q

1

R

B

USER

MY PRESET

S

Press the Data Wheel to load MY PRESET

L

OUT

P

L

R

L

SUB

P L

R

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

15

8. Now let’s run the System Setup wizard for this preset.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Press and hold the SETUP button
until “System Setup WIZARD” appears
in the display.

9.

10.

S

A

L

E

U

F

Q

1

R

B

USER

S

StOutwStSub

PREV PG

C

P L

R

L

SUB

R

L

OUT

P

L

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

Press the NEXT PG button.

PREV PG

SUBHARMONIC

System Setup WIZARD

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

Make sure STEREO is already
selected, then press the
NEXT PG button.

11.

16

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

Make sure PRX515 is already
selected, then press the
NEXT PG button.

Main Speakers

JBL PRX500

PRX515

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

12.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Make sure PRX518S STEREO
is already selected, then
press the NEXT PG button.

13.

Sub Speakers

Sub(s)

JBL PRX500

PRX518S STEREO

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

A. Set the level knobs on your main speakers
to match the position shown on the display.

Main Speaker Levels

Adjust speaker
levels as shown
> 36% Level

B. Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

14.

(Note that you also have the option to turn the Data
Wheel to adjust the level shown on the display
to match a preferred setting on your speakers.)

A. Set the level knobs on your subwoofer speakers
to match the position shown on the display.

Sub Speaker Levels

Adjust speaker
levels as shown
> 21% Level

(Note that you also have the option to turn the Data
Wheel to adjust the level shown on the display
to match a preferred setting on your speakers.)

B. Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

17

15. When the display reads “Load New Preset,” connect the RTA mic and press the RTA INPUT button. This

Inputs

0

6

12

24

36

SIG

Headroom dB

will avoid overwriting settings in your existing preset.

A. Connect the included dbx M2 RTA mic to the
RTA MIC INPUT using an XLR cable at least 25’ long.

PREV PG

NEXT PG

SETUP

Auto Level

Connect mic to RTA
input. Press RTA
input button.

B. Press the RTA INPUT button.

16. With the RTA mic connected, place the RTA

mic on a mic stand and aim it between the
left and right main speakers approximately
25’ away.

SUBHARMONIC

PRESET

RECALL

COMP/LIMITER

STORE

UTILITY

UTILITY

EQ

AFS

WIZARD

WIZARD

18

17. Turn the Data Wheel until pink noise is playing through your speakers at performance level (the same

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

volume you intend to use during your performance). The words “SET TO PERFORMANCE LEVEL” will ap­pear in the display when you have passed the minimum threshold. Set level higher as needed.

B. Press the NEXT PG button
when your performance

A. Turn the Data Wheel to adjust pink noise level.

level is reached.

Auto Level

0 dB to 6 dB typical.

When performance level is reached, press the NEXT PG button. The DriveRack PX will now adjust the
balance between left/right levels for your main speakers (and your subs, if you have them). Note that
you may be prompted to readjust your speaker knob settings if needed.

18. When the display reads “Auto Level Complete,” release the RTA INPUT button.

Auto Level Complete

Release RTA INPUT
button to exit.

PREV PG

SUBHARMONIC

PRESET

RECALL

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

SETUP

EQ

AFS

WIZARD

WIZARD

19.

Press the RTA INPUT button to release.

PRX515 wSub Loaded

and levels balanced.
<NEXT PG>-Auto EQ
<PRESET)-Exit Wizard

Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

19

20. Now the Auto-EQ wizard will begin.

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Press the NEXT PG button.

DriveRack PX

PREV PG

SUBHARMONIC

NEXT PG

COMP/LIMITER

SETUP

EQ

Auto EQ WIZARD

<NEXT PG> to advance

PRESET

RECALL

STORE

UTILITY

UTILITY

AFS

WIZARD

WIZARD

21. With the RTA microphone still connected and in the same position as in step 14, press the RTA INPUT

button.

Auto EQ

Connect mic to RTA
input. Press RTA
input button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

Press the RTA INPUT button.

22. Turn the Data Wheel to select a frequency response for the Auto-EQ. For our example, select Response

C. Then press the <Next pg> button to continue. Auto-EQ will match the curve selected.

A. Turn the Data Wheel
to select a frequency
response for the Auto-EQ.

MED

20

B. Press the
NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

23. Turn the Data Wheel until pink noise is playing through your speakers at performance level. The words

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

“SET TO PERFORMANCE LEVEL” will appear in the Display when you have passed the minimum threshold.
Set level higher as needed.

B. Press the NEXT PG button
when your performance

A. Turn the Data Wheel to adjust pink noise level.

level is reached.

Auto EQ

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

0 db to 6 dB typical.

24. The Auto-EQ will go through some audible changes as it tunes the speakers to the room. This may take

a few minutes.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

25. Auto-EQ will complete or finish sending pink noise once it has come as close as possible to matching

the Frequency response you selected earlier. Press the RTA INPUT button to continue on to the AFS
wizard.

Press the RTA INPUT button.

Auto EQ Complete

Release RTA INPUT
button to exit.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

21

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

26. Now the AFS wizard will begin.

Press the NEXT PG button.

27.

DriveRack PX

PREV PG

SUBHARMONIC

NEXT PG

COMP/LIMITER

SETUP

EQ

AFS WIZARD

<NEXT PG> to advance

PRESET

RECALL

STORE

UTILITY

UTILITY

AFS

WIZARD

WIZARD

A. Turn down the mixer Master or
Main level faders on your mixer.

B. Press the NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

WIZARD

WIZARD

SETUP

EQ

AFS

28. Turn the Data Wheel to choose the number of fixed filters to use with Advanced Feedback Suppression.

These filters, once populated or FIXED, will stay at the set frequency and level. LIVE “L” filters will
change as needed during a performance.

B. Press the

A. Turn the Data Wheel to select the number of fixed filters.

22

NEXT PG button.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

Inputs

0

6

12

24

36

SIG

Headroom dB

29. Turn the Data Wheel to choose the EQ notch filter width appropriate for your needs. Speech is a wide

filter, Music Low is a narrow filter, Music Medium is a very narrow filter, and Music High is an ultra nar­row filter. We’ll use Music High for our example.

B. Press the

A. Turn the Data Wheel to select the EQ notch filter type.

NEXT PG button.

Music High
Ultra Narrow Notch

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

30. With the channel faders down, set the mixer’s master level to zero (0). With the microphones you’ll be

using during the performance in place and connected, turn up microphone channel levels until feed­back begins. The AFS will start to populate the Advanced Feedback Suppression fixed filters.

NOTE: Do not talk into any of the microphones or play music. This is only a search for feedback at this
point.

A. Slowly increase the channel gain on your mixer to the desired level.

PREV PG

SUBHARMONIC

NEXT PG

COMP/LIMITER

SETUP

EQ

PRESET

RECALL

STORE

UTILITY

UTILITY

AFS

WIZARD

WIZARD

31. Advanced Feedback Suppression has completed when “Fixed Filter Setup Done. In LIVE mode” appears

on the Display.

NOTE: Out of control feedback is not advised. Please keep this under control manually with the mixer’s
channel or main faders.

Press the NEXT PG button.

PREV PG

SUBHARMONIC

Fixed Filter Setup
Done. In LIVE mode.

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

SETUP

EQ

AFS

WIZARD

WIZARD

23

32. Store your new preset (with its same name, and in its current location) by pressing the STORE button

Inputs

0

6

12

24

36

SIG

Headroom dB

three times.

P

P L

L

OUT

L

R

L

SUB

R

S

A

L

E

U

F

Q

1

R

B

USER

S

PRX515 wSub

C

33. Your new preset has now been stored. Congratulations and enjoy.

PREV PG

SUBHARMONIC

PRESET

RECALL

NEXT PG

COMP/LIMITER

STORE

UTILITY

UTILITY

Press the STORE button once.

SETUP

EQ

AFS

WIZARD

WIZARD

24

18-0557-B
Printed in the USA