User Manual
USB PLAYBACK:
First, make sure channel 9 is in 
USB playback mode by checking 
the status of the Ch 9 INPUT button 
(37). When the switch is dark, 
channel 9 is in USB playback mode.  
If it is blinking or solid blue, it is in 
Bluetooth mode.  The bottom of the 
LCD display will say “Insert USB 
Drive” when in USB playback mode.
Insert your USB drive in the USB 
Media Jack (17) at the top of 
channel 9.  The mixer will now go 
into folder navigation mode.
In folder navigation mode, you can 
navigate through all of the folders 
present in the USB drive. The 
first folder in the list will always 
be “<ROOT>”.  This is the root 
directory of the USB drive and will 
contain any songs that are not in 
a specific folder.  To navigate, use 
the “Media Select” encoder (36). 
To select a folder, press the “Media 
Select” encoder. Once you select 
a folder, the mixer will enter song 
navigation mode and will display all 
of the playable songs in that folder.
In song navigation mode, you 
can select a song by turning and 
pressing the “Media Select” 
encoder or by pressing the “Next” 
and “Previous” switches. If you 
were currently playing a song and 
selected a new song, the mixer 
will automatically start playing the 
new song.  If you were paused or 
stopped, the mixer will select the 
new song and remain stopped.  
To fast forward a song, press and 
hold the “Next” switch, and to 
rewind a song, press and hold the 
“Previous” switch.  
To go back to folder navigation 
mode, scroll all the way to the left 
and there will be an option called 
“<FOLDERS>”.  Selecting this 
item will enter folder navigation 
mode, where you can select 
another folder of songs.  
If a folder is selected that has no 
playable songs, “No Songs” will be 
displayed on the LCD. Scroll to the 
left and select “<FOLDERS>” to 
go back to folder navigation mode 
and select another folder.
MASTER CONTROLS
FLS
When feedback occurs, the 
corresponding LED of the frequency 
that is closest to the frequency that 
is feeding back will illuminate the 
slider to be adjusted. Slowly bring 
the corresponding slider down 
until feedback is gone. The LED 
will remain illuminated for a few 
seconds after the feedback is gone. 
If the feedback doesn’t return, all 
of the LEDs will become active 
again.
GRAPHIC EQ
These nine-band Equalizers are 
designed to either be used to 
reduce feedback or to adjust the 
overall frequency response of the 
signal being sent to the amplifiers. 
Subtle adjustments made with 
the graphic equalizer can improve 
the way your loudspeaker 
system sounds in the room. You 
should be aware however, that 
setting large amounts of boost 
or arbitrary curves can reduce 
amplifier headroom, leading to 
early distortion or just plain bad or 
unintelligible sound. Working with 
the FLS, the graphic EQ can also 
be used to reduce feedback. Each 
band of EQ can supply up to 12dB 
of boost or cut.
LEVEL LED LADDER
These LEDs indicate the signal level 
of the main mix and the monitor 
mix. The top LED indicates LIMIT 
and activation of our revolutionary 
DDT speaker protection circuit. 
Peavey’s award winning speaker 
protection is built into the XR-AT 
powered mixer and is activated 
automatically to maximize the 
power amplifier without fear of 
distortion.
MAIN LEVEL
The Main level control sets the 
level of the main mix and the 
overall volume of the powered 
mixer.
MONITOR LEVEL
The Monitor level control adjusts 
the level of the signal coming out 
of the Monitor send 1/4" jack (41). 
It can also be assigned to feed 
the 2nd power amplifier via the 
selector switch (24).
Master Controls
18
19
20
21
comp
Auto-Tune
HIGHMID-MORPHLOW
LOW MID HIGH
LOW MID HIGH
MONITOREFFECTS COMPRESSOR
CH. 1
LEVEL
min max
min max
min max
min max
min max
comp
Auto-Tune
CH. 2
min max
min max
min max
min max
min max
high
min max
clip
sig
clip
sig
comp
Auto-Tune
CH. 3
min max
min max
min max
min max
min max
high
min max
clip
sig
comp
CH. 4
min max
min max
min max
min max
min max
high
min max
clip
sig
comp
CH. 5
min max
min max
min max
min max
min max
high
min max
clip
sig
comp
CH. 6
min max
min max
min max
min max
min max
high
min max
clip
sig
comp
CH. 7
min max
min max
min max
min max
min max
high
min max
clip
sig
CH. 8
min max
min max
min max
min max
min max
clip
sig
CH. 9
min max
min max
min max
min max
min max
min max
clip
sig
LEVEL
MAIN
min max
+12
+6
0
-6
-12
63 125 250 500 1K 2K 4K 8K 12K
FLS FEEDBACK LOCATING SYSTEM
min max
high
LEVEL
MONITOR
min max
+12
+6
0
-6
-12
63 125 250 500 1K 2K 4K 8K 12K
FLS FEEDBACK LOCATING SYSTEM
SIGNAL
MON
MAIN
POWER AMP2 ASSIGN
EFX TO MON
Enable
KOSMOS-C
min max
min max
USB
MIC 
LOW
HIGH
EFX
Edit
Auto-
Tune
Press to Select
Press to Select
efx clip
EFX / AUTO-TUNE
MEDIA SELECT
CH 9 INPUT
USB MEDIA PLAYBACK
DIGITAL EFFECTS
MUTE DEFEAT
ANALOG
MEDIA 
CHANNEL
DIGITAL
MEDIA
CHANNEL
USB MEDIA
-6
-12
LIMIT
-18
-24
-30
SIGNAL
-6
-12
LIMIT
-18
-24
-30
Auto-Tune
Auto-Tune
Auto-Tune
18
18
19
19
35
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36
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31
32
33
25
29
37
23
22
20
24
21
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