Steinberg AXR4U User manual

Operation Manual
EN

Contents
AXR4 Operation Manual 2
Contents
Introduction 3
Message from the Development Team.......... 3
Panel Controls and Functions (Main
Panel) 4
Front Panel .................................................... 4
Rear Panel ..................................................... 6
Connection Example...................................... 8
Cautions for Rack-mounting .............................8
Display ........................................................... 9
Screen Configuration ........................................9
METER Screen..................................................9
SCENE Screen................................................10
SYSTEM SETUP Screen..................................11
MONITOR SETUP Screen...............................22
CH SETUP Screen ..........................................24
Software 31
Yamaha Steinberg Thunderbolt Driver ...........31
Yamaha Steinberg USB Driver .......................33
dspMixFx AXR ............................................. 36
Window Examples and How to Open the
Window ...........................................................36
Mixer Window .................................................37
Input Channels Area .......................................38
Output Channels Area ....................................42
Right Side Bar.................................................44
Left Side Bar ...................................................45
Relational Tables ............................................47
Menu ...............................................................48
Matrix Mixer Window.......................................51
Meter Window .................................................54
Show/Hide Channels Window.........................55
Settings Window .............................................56
Building a Monitoring Environment.................59
Stacking the AXR4T ........................................61
Configuring AXR4 Settings in Cubase (AXR
Extension) ....................................................62
Window Configuration.................................... 62
Dedicated Cubase Window ........................... 62
Hardware Setup ............................................. 65
Plug-ins ........................................................66
Equalizer 601 ................................................. 66
Compressor 276 ............................................ 68
REV-X ............................................................. 70
Sweet Spot Morphing Channel Strip.............. 72
Operation Correspondence Table 75
Troubleshooting 77
Technical Specifications 80
Error Messages 82
Block Diagram 83
Software License and Copyrights 89
Index 92
•This manual is the exclusive copyrights of
Yamaha Corporation.
•Copying of the software or reproduction of this
manual in whole or in part by any means is
expressly forbidden without the written consent
of the manufacturer.
•The illustrations and screens as shown in this
manual are for instructional purposes only.
•Steinberg Media Technologies GmbH and
Yamaha Corporation make no representations or
warranties with regard to the use of the software
and documentation and cannot be held
responsible for the results of the use of this
manual and the software.
•Software may be revised and updated without
prior notice.

Introduction
AXR4 Operation Manual 3
Introduction
Message from the Development Team
Thank you for choosing the AXR4 Audio Interface.
The AXR4 is our flagship audio interface model, developed from the perspective of audio
engineers for use in professional music production.
The “sound” is the most vital component for an audio interface. The microphone preamp acts as a
core foundation in producing this sound. This preamp is based on an analog “AXR Preamplifier”
perfecting a traditional, natural soundscape attained by the development team, and a digital
“hybrid microphone preamp” that further evolves Yamaha’s proprietary modeling technology, VCM
(Virtual Circuitry Modeling).
Analog I/O components use AD/DA circuits that support up to 32-bit integer resolutions and
384 kHz sample rate to capture and reproduce the rich aural sounds produced by performers and
vocalists without a loss in quality.
The digital section faithfully recreates the Rupert Neve Designs®transformer circuit in addition to
employing the renowned Silk processing models in Rupert Neve Designs’s microphone preamp.
The Silk processing can be applied in two variations to match the atmosphere of the tune or the
music source: Silk Blue for a vintage sound that produces a solid, powerful expression, and Silk
Red offering rich, exuberant sound brimming with musicality. Silk processing helps produce
graceful, defined sounds with an analog-like texture. The unique feeling of compression and
saturation this introduces to a piece is unlike that found anywhere else.
Silk processing is incorporated to reproduce the feeling in an artist’s performance and the original,
pure sound produced by an instrument at a level never heard before. To achieve this, circuits on
board the AXR4 are tuned to an obsessive degree of precision in order to deliver a level of sound
quality that is leaps and bounds beyond what conventional audio interfaces offer.
The AXR4 provides a rich array of I/O connectors in order to flexibly meet a broad range of
requirements from professional audio engineers. Similarly, a full matrix mixer has been
incorporated into the device to adequately meet a diverse set of monitoring and system-related
requirements. The drivers processing these I/O signals have also undergone major improvements,
providing both low latency and stable performance. As with the microphone preamp, SSPLL™
(Super Suppression PLL) is also provided in the form of an analog/digital hybrid type PLL
architecture. By tuning jitters in the digital section with the analog section, super low jitter levels
and high levels of stability are delivered.
Beyond just hardware improvements, major usability improvements have been introduced into our
packaged software applications, including a complete overhaul of Extension controlling AXR4 from
Cubase.
There are no limits to human creativity. We sincerely hope that the AXR4 opens up the potential for
new developments in the field of professional studio audio engineering, and it would give us the
greatest pleasure to see this product usher forth a new level of musical production and cultural
achievement.
The Steinberg Hardware Development Team

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 4
Panel Controls and Functions (Main Panel)
Front Panel
1MIC/LINE/HI-Z [1]/[2] jacks
For connecting to a microphone, digital
instrument, electric guitar, or electric bass.
This jack can be connected to both XLR-
type and 1/4" phone-type plugs. Both
balanced and unbalanced connections
are supported when using a 1/4" phone-
type LINE connection. Unbalanced
connection is supported when using a
1/4" phone-type HI-Z connection.
2MIC/LINE [3]/[4] jacks
For connecting to a microphone or digital
instrument. This jack can be connected to
both XLR-type and 1/4" phone-type plugs.
The XLR-type plug is dedicated for
microphone connection plug. Both
balanced and unbalanced connections
are supported when using a 1/4" phone-
type LINE connection.
3[SEL] keys
Dedicated selection keys to switch
between MIC/LINE/HI-Z [1]/[2], and MIC/
LINE [3]/[4]. The ANALOG SETUP screen
for the selected channel appears on the $
display. This lights up green when
selected.
NOTE
You can turn channel linking on and off by holding
down a [SEL] key for MIC/LINE/HI-Z [1]/[2] or MIC/
LINE [3]/[4] and pressing the other [SEL] key
(page 12). The channel that was pressed first lights
up in green. The channel pressed afterwards flashes
in green. The ANALOG SETUP screen for the
channel flashing in green appears on the display.
Press the [SEL] key on the side that is flashing in
green to switch the channel selection to the side
pressed.
4[+48V] indicators
Lights up in red when the phantom power
is turned on.
12 7)#4
358!$%*
^
9@6
&
NOTICE
When connecting devices or when switching
the routing structure, observe the following
cautions to avoid damage and noise being
introduced to the product and peripheral
devices.
•Turn the phantom power off (page 26) when
connecting a device that does not support
phantom power to the MIC/LINE/HI-Z [1]/[2]
jack or the MIC/LINE [3]/[4] jack.
•Do not connect or disconnect cables to/from
the MIC/LINE/HI-Z [1]/[2] jacks or the MIC/LINE
[3]/[4] jacks while the phantom power is on.
The [+48V] indicator flashes for several
seconds when phantom power is turned off.
Wait until this indicator stops flashing before
plugging in or taking out cables.
•Turn the phantom power on and off when the
[MUTE] key on the front of the AXR4 device is
on.
•HI-Z and phantom power cannot be turned on
at the same time.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 5
5SILK [ON] key
Turns Silk on and off for the channel
selected with the [SEL] key. This lights up
white when turned on.
Silk
Silk uses proprietary Yamaha “VCM
technology” digital signal processing to
faithfully replicate the “Silk” processing
that is built into numerous high-end analog
audio devices developed, manufactured,
and sold by Rupert Neve Designs. Silk
helps vividly accentuate individual audio
parts.
6SILK [TEXTURE] knob
Adjusts the harmonic content of the source
audio.
7SILK [BLUE/RED] key
Switches between BLUE acting on low
frequency bands, and RED acting on high
frequency bands.
8[CH] (Channel) key
Displays the CH SETUP screen on the
display. This lights up green when
selected.
9[MONI] (Monitor) key
Displays the MONITOR SETUP screen on
the display. This lights up green when
selected.
)[MUTE] key
Mutes all input and output audio at once.
This flashes red when muted.
![HOME/ESC] key
Returns to the previous display screen.
Press this several times to eventually
return to the HOME screen. You can also
return to the HOME screen by holding this
key down.
@[SCENE] key
Displays the SCENE screen on the display.
This lights up green when selected.
#[SETUP] key
Displays the SYSTEM SETUP screen on
the display. This lights up green when
selected.
$Display
Displays information needed to use and
configure the AXR4 device.
%Multi-function knob
Used to operate the screen in the display.
Turn to move between items, and press in
to select an item.
^PHONES [1]/[2] knobs
Adjusts the output signal level for the
PHONES [1]/[2] jack.
&PHONES [1]/[2] jacks
For connecting headphones. Output
signals for both the PHONES [1] jack and
the PHONES [2] jack can be routed on the
OUTPUT PATCH screen. This can also be
set in the Cubase series-specific AXR
Extension window (page 62), or the
dspMixFx AXR Mixer window (page 43).
*[P/I] (Standby/On) switch
Turns the product on (I) or puts it into
standby mode (P).
NOTE
Switching off to on quickly can cause malfunctions.
After setting the [P/I] (standby/on) switch to
standby, wait for about six seconds before setting it
to on again.
NOTICE
Even when the power is in the standby position
(P), electricity is still flowing to the product. If
you do not plan to use the product for a while,
unplug the power cord from the outlet.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 6
Rear Panel
AXR4T
AXR4U
1DC IN [24V]
For connecting to a power adaptor.
2[ ] (Thunderbolt 2) connector
(AXR4T only)
For connecting the AXR4T to a computer.
2[USB 3.0] connector (AXR4U only)
For connecting the AXR4U to a computer.
1
2
69
3
47
)
85
169
3
427
)
85
NOTICE
Follow the cautions described below when
connecting to a computer. Data could be
destroyed or lost if the computer or the product
hangs. If the computer or the product hangs,
either restart the application or the computer.
•A separate Thunderbolt 2-certified cable and
a Thunderbolt 3 to Thunderbolt 2 adapter are
required. Prepare a cable and an adapter that
matches the connector on the computer and
the Thunderbolt 2 connector on the AXR4T
device. However, the Thunderbolt 3 to
Thunderbolt 2 adapter is not required when
your computer is equipped with a
Thunderbolt 2 connector.
•Ensure that the PHONES [1]/[2] knobs and
output level controls for any power amps or
powered speakers connected to the AXR4T
are set to the minimum before inserting or
removing cables.
•Close down all computer applications before
turning the power to the AXR4T device to
standby (P) or inserting and removing
cables.
•Wait six seconds or longer between turning
the AXR4T device on (I), switching to
standby (P), and inserting or removing
cables.
NOTICE
Follow the cautions described below when
connecting to a computer. Data could be
destroyed or lost if the computer or the product
hangs. If the computer or the product hangs,
either restart the application or the computer.
•Use the USB cable that comes packaged with
the AXR4U. Cables that do not support
USB 3.1 Gen 1 cannot be used.
•Ensure that the PHONES [1]/[2] knobs and
output level controls for any power amps or
powered speakers connected to the AXR4U
are set to the minimum before inserting or
removing cables.
•Check that no data is being sent from the
product before plugging in or removing the
cable.
•Close down all computer applications before
turning the power to the AXR4U device to
standby (P) or inserting and removing
cables.
•Wait six seconds or longer between turning
the AXR4U device on (I), switching to
standby (P), and inserting or removing
cables.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 7
3WORD CLOCK [IN]/[OUT] jacks
For connecting external word clock
signals. The WORD CLOCK [IN] jack
terminates internally at 75Ω.
4MIDI [OUT] jack
For connecting to the MIDI IN jack on MIDI
devices. Outputs a MIDI signals sent from
the computer.
5MIDI [IN] jack
For connecting to the MIDI OUT jack on
MIDI devices. Sends the MIDI signals
received to the computer.
6[AES/EBU] connector
For connecting to devices that input or
output digital signals in the AES/EBU
format. You can select between the [AES/
EBU] connector and the 7OPTICAL B
[IN]/[OUT] connector for use. The jack and
format in use can be set on the DIGITAL I/
O MODE screen on the AXR4 device
(page 16) or on the Settings screen on the
dspMixFx AXR.
NOTE
For more information on the pin arrangement for the
[AES/EBU] connector, see page 81.
7OPTICAL B [IN]/[OUT] connector
Supports both S/PDIF and ADAT formats.
You can select between the 6[AES/EBU]
connector and the OPTICAL B [IN]/[OUT]
connector for use. The jack and format in
use can be set on the DIGITAL I/O MODE
screen on the AXR4 device (page 16) or
on the Settings screen on the dspMixFx
AXR.
8OPTICAL A [IN]/[OUT] connector
Supports both S/PDIF and ADAT formats.
You can select whether to use the
OPTICAL B [IN]/[OUT] connector in S/PDIF
format or ADAT format on the DIGITAL I/O
MODE screen on the AXR4 device or on
the Settings screen on the dspMixFx AXR.
9LINE OUTPUT [1] – [8] jacks
For connecting to external devices with
line level signals. These jacks can be
connected to 1/4" phone-type (balanced/
unbalanced) plugs.
)LINE INPUT [5] – [12] jacks
For connecting to digital instruments.
These jacks can be connected to
1/4" phone-type (balanced/unbalanced)
plugs.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 8
Connection Example
See the following connection example (AXR4T) to connect speakers, microphones, or instruments.
Cautions for Rack-mounting
This product has been tested to function at a
room temperature of 0 – 40°C. When mounting
this product together with other devices into
an EIA-standard rack, the product may not be
able to deliver sufficient performance due to
the increased temperature caused by the heat
produced by other devices. Mount this
product in a rack under the following
conditions to ensure that heat does not build
up.
•Leave at least 1U of space empty both
above and below the product. Ensure that
empty spaces are properly ventilated by
installing a ventilation panel or allowing for
open air exposure.
•Open up the rear of the rack and separate
the rack from the wall by at least 10 cm to
ensure proper ventilation. If this is not
possible, install a commercially available fan
kit or other such forced ventilation device.
Note that when installing a fan kit, closing off
the rear of the rack may help improve heat
loss. For more information, see the owner’s
manuals for your rack and fan kit.
Guitar
Microphone Headphones
Computer Monitor
Speakers
Synthesizer
Word Clock
Generator Sound Module
Microphone
Preamp Outboard Effects
NOTICE
This product has been designed to support a LINE
OUTPUT load impedance of 10kΩ or more.
As a load impedance of less than 10kΩ can cause
issues with heat generation, do not connect
devices with an input impedance of less than 10kΩ.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 9
Display
Screen Configuration
The display screen is split into the TOOL BAR
area on the top, and the MAIN area on the
bottom.
METER Screen
This screen is used to display input/output
audio signal levels for the AXR4 device.
How to open the METER screen
Press the [HOME/ESC] key on the AXR4
device to open the METER screen.
NOTE
If a screen other than the METER screen is displayed for
over a minute without any user interaction, the system
will automatically return to display the METER screen.
TOOL BAR display area
1Scene name
Displays the name of the most recent
scene recalled.
2Clock source
Displays the current clock source.
NOTE
The clock source name will flash when the word
clock has not been synchronized.
3Sample rate
Displays the sample rate in use by the
AXR4 device.
NOTE
(AXR4U only)
When communicating with a computer at the High-
Speed (USB 2.0) setting, the background color of
TOOL BAR is displayed in green.
MAIN display area
1MIC IN meter
2LINE IN meter
3ADAT A or S/PDIF A IN meter
4ADAT B or S/PDIF B or AES/EBU IN
meter
TOOL BAR area
MAIN area
123
1234 5
6789)

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 10
5Input meter from computer
6LINE OUT meter
7ADAT A or S/PDIF A OUT meter
8ADAT B or S/PDIF B or AES/EBU
OUT meter
9Output meter to computer
)PHONES OUT meter
NOTE
3ADAT A or S/PDIF A IN meter
4ADAT B or S/PDIF B or AES/EBU IN meter
7ADAT A or S/PDIF A OUT meter
8ADAT B or S/PDIF B or AES/EBU OUT meter
Contents displayed for the above items will change
depending on the Digital I/O mode and sample rate in
use.
How to use the METER screen
1. Press the multi-function knob to display the
MAIN OUT VOLUME dialog.
2. Turn the multi-function knob while the
MAIN OUT VOLUME dialog is displayed to
adjust the level of the mix bus being set by
the MAIN OUT VOLUME setting.
NOTE
You can set the channels being set by the MAIN
OUT VOLUME setting on the MAIN OUT SETUP
screen (page 23).
SCENE Screen
This screen is used to store and recall scenes.
How to open the SCENE screen
Press the [SCENE] key on the AXR4 device
panel to open the SCENE screen.
MAIN display area
This area displays scenes in a list. An asterisk
(*) will appear to the left of the most recently
recalled scene.
NOTE
The Initial Data scene is a scene used to restore mixer
settings to the default factory settings.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 11
How to use the SCENE screen
1. Turn the multi-function knob to focus on a
scene name.
2. Press the multi-function knob to display the
confirmation dialog.
3. Turn the multi-function knob to select an
option.
4. Press the multi-function knob to execute.
Each option and the action performed are
described below.
NOTE
If you press the [HOME/ESC] key while the confirmation
dialog is displayed, the confirmation dialog will be
closed without performing an action.
SYSTEM SETUP Screen
This screen is used to perform system setup
for the AXR4 device.
AXR4T
AXR4U
Option Action performed
Cancel Closes the dialog without performing
an action
Store Stores the current mixer settings to the
selected scene
NOTE
•Up to eight scenes can be stored.
•Scene names are automatically
added in the form of “Scene XX”
(where XX represents the list order).
•Scene names can be set in
“dspMixFx AXR” “Menu” 
“Scene” (page 49).
Recall Recalls the selected scene

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 12
How to open the SYSTEM SETUP
screen
Press the [SETUP] key on the AXR4 device
panel to open the SYSTEM SETUP screen.
MAIN display area
This area displays options in a list.
CH LINK screen
This screen is used to set channel links for
each channel on or off.
How to open the CH LINK screen
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “CH LINK.”
2. Press the multi-function knob to confirm.
MAIN display area
Channel names are displayed on the left. The
on/off status of channel links is displayed on
the right.
CH LINK For setting channel links for each
channel on or off
CLOCK For configuring word clock-
related settings such as clock
source and sample rate
DIGITAL I/O
MODE
For configuring digital I/O mode
settings for digital audio I/F A
and B
NOTE
If the sample rate is set to 352.8k
or 384k, this option will appear
grayed out, and cannot be
selected.
PEAK HOLD For setting the peak level display
for the level meter on or off
HPF For setting the cutoff frequency
for the high pass filter
CONVERSION
MODE
For setting the filter for the AD/
DA converter
NOTE
If the sample rate is set to 352.8k
or 384k, this option will appear
grayed out, and cannot be
selected.
BRIGHTNESS For setting the brightness of the
display and LED colors
PANEL LOCK For locking operations from
panel switches and encoder
STACK ID
(AXR4T only)
For assigning an ID to the AXR4
device to identify the device
when multiple AXR4 devices are
connected
USB MODE
(AXR4U only)
For setting the USB operation
mode
INFO/
INITIALIZE
For displaying information on
this product, and resets settings
to their defaults

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 13
How to use the CH LINK screen
1. Turn the multi-function knob to select a
channel pair.
2. Press the multi-function knob to display the
settings dialog.
3. Turn the multi-function knob to select either
“ON” or “OFF.”
4. Press the multi-function knob to confirm.
CLOCK screen
This screen is used to configure word clock-
related items such as clock source, sample
rate, and SRC (Sample Rate Converter).
How to open the CLOCK screen
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “CLOCK.”
2. Press the multi-function knob to confirm.
MAIN display area
This area displays options in a list.
MASTER For setting the clock source
SAMPLE RATE For configuring word clock-
related settings such as clock
source and sample rate
SRC Turns the SRC on and off
AES/EBU CH For setting which channel in the
AES/EBU should be the source
channel when AES/EBU is set as
the clock source

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 14
•MASTER
Allows you to set the clock source from the list.
Available options are as follows.
NOTE
*1 Either ADAT A or S/PDIF A will be displayed based on
the digital I/O mode settings (page 16) configured.
*2 Either ADAT B, S/PDIF B, or AES/EBU will be
displayed based on the digital I/O mode settings
configured.
*3 If ADAT A or ADAT B is selected as the clock source,
you must select an operating sample rate for the
AXR4 matching the sample rate of the clock source.
How to configure the MASTER
1. Navigate from the SYSTEM SETUP screen
to the CLOCK screen, and then turn the
multi-function knob to select “MASTER.”
2. Press the multi-function knob to select.
3. When the MASTER screen appears, turn
the multi-function knob to select a clock
source.
4. Press the multi-function knob to confirm.
• SAMPLE RATE
Allows you to select an operating sample rate
from the list.
There are eight sample rate options available,
including, 44.1k, 48k, 88.2k, 96k, 176.4k,
192k, 352.8k, and 384k.
NOTE
Note that the 352.8k and 384k sample rate are only
available when the clock master is set to “INTERNAL” or
“WCLK.”
For more information on what inputs and
outputs are available for each sample rate,
see the Operation Correspondence Table
(page 75).
INTERNAL The internal AXR4 clock
WCLK External clock from the WORD
CLOCK IN jack
ADAT A*1*3 External clock from ADAT A
S/PDIF A*1 External clock from S/PDIF A
ADAT B*2*3 External clock from ADAT B
S/PDIF B*2 External clock from S/PDIF B
AES/EBU*2 External clock from AES/EBU
NOTICE
Changing word clock settings in this product or
any digital audio system may result in system
noise. To prevent damaging connected speakers,
either turn off the power amp and other devices, or
restrict their output before configuring word clock
settings.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 15
How to configure the SAMPLE RATE
1. Navigate from the SYSTEM SETUP screen
to the CLOCK screen, and then turn the
multi-function knob to select “SAMPLE
RATE.”
2. Press the multi-function knob to select.
3. When the SAMPLE RATE screen appears,
turn the multi-function knob to select a
sample rate.
4. Press the multi-function knob to confirm.
•SRC
Allows you to set the AES/EBU input SRC on
and off. When turned on, the sample rate will
be converted, and audio data can be used
even if AES/EBU inputs (1/2 – 7/8) and the
AXR4 internal clock are asynchronous.
How to configure the SRC
1. Navigate from the SYSTEM SETUP screen
to the CLOCK screen, and then turn the
multi-function knob to select “SRC.”
2. Press the multi-function knob to select.
3. When the dialog appears, turn the multi-
function knob to select either “ON” or
“OFF.”
4. Press the multi-function knob to confirm.
• AES/EBU CH
Allows you to set the channel in the AES/EBU
from which the clock source is received when
AES/EBU is set as the clock source.
How to configure the AES/EBU CH
1. Navigate from the SYSTEM SETUP screen
to the CLOCK screen, and then turn the
multi-function knob to select “AES/EBU
CH.”
2. Press the multi-function knob to select.
3. When the AES/EBU CH screen appears,
turn the multi-function knob to select a
channel.
4. Press the multi-function knob to confirm.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 16
DIGITAL I/O MODE screen
This screen is used to set whether to use the
connector in S/PDIF format or ADAT format
when using the OPTICAL A [IN]/[OUT]
connector. Further, you can set whether the
[AES/EBU] connector or the OPTICAL B [IN]/
[OUT] connector is used, and if the OPTICAL
B [IN]/[OUT] connector is used, you can set
whether to use the connector in S/PDIF format
or ADAT format.
The three options available are ADAT, S/PDIF,
and AES/EBU (DIGITAL(B) only).
How to configure the DIGITAL I/O MODE
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “DIGITAL I/O
MODE.”
2. Press the multi-function knob to select.
3. When the DIGITAL I/O MODE screen
appears, turn the multi-function knob to
select either “DIGITAL(A)” or “DIGITAL(B).”
4. Press the multi-function knob to select.
5. When the DIGITAL(A) or DIGITAL(B)
screen appears, turn the multi-function
knob to select a format.
6. Press the multi-function knob to confirm.
PEAK HOLD screen
This screen sets the peak level display for the
level meter on or off.
How to open the PEAK HOLD screen
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “PEAK
HOLD.”
2. Press the multi-function knob to confirm.
How to use the PEAK HOLD screen
1. Press the multi-function knob to display the
settings dialog.
2. Turn the multi-function knob to select either
“ON” or “OFF.”
3. Press the multi-function knob to confirm.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 17
HPF screen
This screen is used to set the cutoff frequency
for the high pass filter.
How to open the HPF screen
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “HPF.”
2. Press the multi-function knob to select.
How to use the HPF screen
1. Turn the multi-function knob to select a
cutoff frequency.
2. Press the multi-function knob to confirm.
CONVERSION MODE screen
This screen is used to set the filter for the AD/
DA converter.
The AD/DA converter has two filter setting
options available: LINEAR PHASE and SHORT
DELAY. There are some sonic differences
between the two filter settings. Select the one
most suitable for your applications.
How to open the CONVERSION MODE
screen
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select
“CONVERSION MODE.”
2. Press the multi-function knob to confirm.
How to use the CONVERSION MODE
screen
1. Turn the multi-function knob to select either
“LINEAR PHASE” or “SHORT DELAY.”
2. Press the multi-function knob to confirm.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 18
BRIGHTNESS screen
This screen is used to set the brightness of the
display and LED colors.
Available options are as follows.
How to configure the BRIGHTNESS
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select
“BRIGHTNESS.”
2. Press the multi-function knob to select.
3. When the BRIGHTNESS screen appears,
turn the multi-function knob to select an
option.
4. Press the multi-function knob to select.
5. When the dialog screen appears, turn the
multi-function knob to set a brightness
value.
6. Press the multi-function knob to close the
dialog screen.
PANEL LOCK screen
This screen is used to lock operations from
panel switches and encoder. Attempting to
use locked switches and encoder operations
will display a message dialog screen for a set
period of time.
How to configure PANEL LOCK
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “PANEL
LOCK.”
2. Press the multi-function knob to confirm.
How to release configured PANEL LOCK
Press and hold down the [SETUP] key on the
AXR4 device.
LCD For setting the brightness of
the AXR4 device display
LED(RED) For setting the brightness of
the red LED
LED(BLUE) For setting the brightness of
the blue LED
LED(WHITE) For setting the brightness of
the white LED
LED(GREEN) For setting the brightness of
the green LED

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 19
STACK ID screen (AXR4T only)
This screen is used to assign an ID to the
AXR4T device to identify the device when
multiple AXR4T devices are connected.
NOTE
•Up to three AXR4T devices can be stacked. You
cannot use four or more connected AXR4T devices
together.
•You cannot use multiple connected AXR4T devices by
duplicating the STACK ID.
•An assigned STACK ID will be applied after a power
cycle.
•A STACK ID can only be set from the screen.
How to configure a STACK ID
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “STACK ID.”
2. Press the multi-function knob to select.
3. When the dialog screen appears, turn the
multi-function knob to select a number
from 1, 2 or 3.
4. Press the multi-function knob to confirm.
5. Set the [P/I] (standby/on) switch on the
front panel of the AXR4T device into the
standby position ([P]).
6. Set the [P/I] (standby/on) switch on the
front panel of the AXR4T device into the
[I] position.
USB MODE Screen (AXR4U only)
This screen is used to set the USB
transmission mode.
Select either SuperSpeed (USB 3.1 Gen 1) or
High-Speed (USB 2.0).
Normally, set this to SuperSpeed (USB 3.1
Gen 1) and connect the interface to a USB 3.0
port on your computer.
High-Speed (USB 2.0) has a more narrow
transmission bandwidth than SuperSpeed
(USB 3.1 Gen 1), and therefore there are
fewer channels available when using a
sample rate of 176.4kHz or higher (page 75).
Using a USB 2.0 port on your computer or
using a USB 2.0 cable will also result in fewer
channels available.
NOTE
•The actual data transmission speed between a
computer is displayed in the upper right corner of the
screen. When communicating at High-Speed even
though the USB MODE is set to SuperSpeed,
“!USB2.0!” is displayed in the upper right corner of the
screen, and the text “SuperSpeed” flashes.
•When using SuperSpeed (USB 3.1 Gen 1) the sound
might cut out during audio recording/playback,
depending on the USB host controller installed on the
computer. If this happens, try changing to High-Speed
(USB 2.0).
•When using High-Speed (USB 2.0) you may not be
able to set a sample rate of 88.2kHz or higher,
depending on the USB host controller installed on the
computer.
•If the AXR4U is connected to dspMixFx AXR or
Cubase, you cannot change the USB MODE setting.
Close dspMixFx AXR or Cubase.

Panel Controls and Functions (Main Panel)
AXR4 Operation Manual 20
How to Open the USB MODE Screen
1. On the SYSTEM SETUP screen, turn the
multi-function knob to select “USB MODE.”
2. Press the multi-function knob to confirm.
How to Use the USB MODE Screen
1. Turn the multi-function knob to select either
“SuperSpeed” or “High-Speed.”
2. Press the multi-function knob to display the
confirmation dialog.
NOTE
If the USB mode is not changed, the system returns
to the SYSTEM SETUP screen without displaying the
confirmation dialog.
3. Turn the multi-function knob to select either
“OK” or “CANCEL.”
4. Press the multi-function knob to confirm.
The AXR4U automatically restarts.
INFO/INITIALIZE screen
This screen is used to display information
pertinent to the AXR4 device such as firmware
information. You can also restore settings
value stored to the AXR4 device and scene
records back to their default factory settings
here.
Available options, and the actions they
perform, are as follows.
Option Action
performed
VERSION Displays information
pertinent to the AXR4
device such as
firmware information
ABOUT Displays information
about the AXR4
device and
information about the
card slot on the rear
of the AXR4 device
INITIALIZE CURRENT
DATA
Restores all current
mixer settings and
AXR4 device
settings to their
defaults
SCENE
MEMORY
Deletes all scenes
stored to the AXR4
device