Steinberg UR28M Operation Manual

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USB AUDIO INTERFACE
IT 
						

							UR28M  Operation Manual2
Contents
Introduction.................. ..........................................3
Contents in this Operation Manu al............................... 3
Features .............. ............................................ ............. 3
Panel Controls and Term inals (Details)...............4
Rear Panel....................................................... ............. 4
Front Panel ......................................................... .......... 5
Panel Controls for the Software Programs .........8
Control Panel of the Audio Driver....................... .......... 8
dspMixFx UR28M....... .................................................. 9
Dedicated Windows for Cubase Se ries ..................... 15
Sweet Spot Morphi ng Channel Strip 
(Channel Strip) ........... ................................................ 19
REV-X ............. ................................................. ........... 22
Usage Examples .................................. ................24
Introduction ................................................................ 24
Recording with the Channel St rip and REV-X ............ 24
Controlling the Monito r Sound ................................... 25
Using the Device Without a Com puter....................... 26
Appendix ...................... ........................................27
Glossary ............ ................................ ......................... 27
Contents of the Gett ing Started Section .. .................. 28
Signal Flow ............... .......................................... ........ 29
Block Diagrams.......... ................................................ 31 
						

							Introduction
UR28M  Operation Manual3
Introduction
Contents in this Operation 
Manual
This Operation Manual explains how to use the 
device. The explanations in this manual assume that 
you’ve set up the device and prepared it for use 
according to the included Getting Started 
document. If you haven’t done that yet, refer to the 
Getting Started document and complete the setup 
before reading this manual.
Features
High-resolution Microphone 
Preamplifiers (D-Pre) 
Discrete microphone preamps featuring a high-
performance inverted Darlington circuit 
configuration achieve low distortion and noise while 
delivering sound with eminently musical balance 
and character.
Convenient Monitor Control
Up to three sets of monitor speakers can be 
connected to the unit, with versatile control of 
monitor output provided via convenient buttons and 
knobs: volume, mute, mono mix, and dimmer. There 
are two functions (modes) regarding monitor 
control: the Alternate mode, which lets you select a 
set of monitor speakers for signal output, and the 
Independent mode, which lets you select the 
signals for outputting to each set of monitor 
speakers simultaneously.
Supports a Variety of Inputs
Switchable phantom po wer is provided for 
condenser microphones, electric guitars and 
basses can be directly connected via a HI-Z (high 
impedance) input, and a PA D is provided for input 
matching with high-level signals from electronic 
instruments. A stereo mini-jack 2TR IN input 
provides a convenient way to connect portable 
music players, and coaxial S/PDIF connectors 
enable direct connection to a variety of digital audio 
devices.
Powerful DSP Mixer (dspMixFx)
A DSP mixer that can mix up to six input channels to 
three stereo outputs is built in. A number of DSP 
effects that can be applied to input signals are also 
provided, and since it is a  hardware mix with there is 
no monitoring latency.
DSP Effect: Sweet Spot Morphing 
Channel Strip
The Sweet Spot Morphing Channel Strip (“Channel 
Strip” for short) is a multi-effect that combines 
compression and EQ. Advanced sound engineering 
know-how is condensed into a number of presets 
that can simply be recalled as required for 
professional results. Four channel strips are 
provided, and each can be assigned to the monitor 
sound only, or to both the monitor and recorded 
sound.
DSP Effect: REV-X Reverb
REV-X is a digital reverb platform developed by 
Yamaha for pro audio applications. One REV-X 
effect is included in this unit. Input signals can be 
sent to the REV-X effect, and the REV-X effect is 
applied only to the monitor outputs. 
DSP Effect VST Plug-ins Included
VST Plug-in (VST3.0, page 27) versions of the 
Channel Strip and REV-X effects are included for 
use with Cubase series or similar VST-compatible 
DAW software.
Cubase AI Included
Steinberg Cubase AI digital audio workstation 
(DAW, page 27) software is  included. Cubase AI is 
the entry-level version of  the Cubase series DAW 
products, providing the basic functionality you need 
for music production and editing. 
						

							Panel Controls and Terminals (Details)
UR28M  Operation Manual4
Panel Controls and 
Terminals (Details)
Rear Panel
DC IN 12V
For connection to the AC power adaptor.
 Grounding screw
For connection to a ground wire.
If you have a problem with hum or noise, use this 
terminal to connect to ground. The noise may be 
reduced.
 2TR IN (3.5 mm, stereo)
For connection to a portable audio player.
The input signal at 2TR IN flows only to MIX 1 
(page 27), and not to the computer.
 USB2.0 (USB port)
For connection to a computer.
 S/PDIF IN/OUT (coaxial)
For connection to a digital audio device.
S/PDIF OUT outputs one of the MIX 1–3 and DAW 
OUT signals. To select the output signal, use the 
“Setup Window” (page 14) in the section 
“dspMixFx UR28M” or the “Output Routing 
Window” (page 19) in the section “Dedicated 
Windows for Cubase Series”.
S/PDIF IN is equipped with the SRC (Sampling 
Rate Converter) function. Even if the sampling 
rate at which the device is operating differs from 
the sampling rate of the audio signal input to the 
S/PDIF IN, the SRC function will automatically 
convert the rate so that  playback will be correct. 
SRC is only available when  INTERNAL is selected 
as the clock source of the device. To select the 
clock source of the device, use the “(device 
name) Window” (page 8) in the section “Control 
Panel of the Audio Driver” in Windows or Audio 
MIDI Setup in Mac. 
PHONES 1/2 (phone type, stereo)
For connection to a set of headphones.
PHONES 1 outputs the MIX 1 signal. PHONE 2 
outputs one of the MIX 1–3 signals. To select the 
output signal of PHONES 2, use the “Headphone 
Area” (page 13) in the section “dspMixFx 
UR28M” or the “Headphones Window” (page 18) 
in the section “Dedicated Windows for Cubase 
Series.”
 LINE OUTPUT A–C (phone type, 
balanced/unbalanced)
For connection to monitor speakers. When the 
monitor speakers have a balanced input, connect 
them with a balanced cable.
There are two functions (modes) on LINE 
OUTPUTS A–C: Alternate and Independent. In 
the Alternate mode, one of the LINE OUTPUTS A–
C selected by the OUTPUT buttons A–C outputs a 
single MIX signal selected by the SOURCE 
SELECT button. In the Independent mode, LINE 
OUTPUTS A–C output each MIX selected by the 
SOURCE SELECT button simultaneously.
For details on the mode,  including how to select 
the mode, refer to the “Setup Window” (page 14) 
in the section “dspMixFx UR28M” or the “Master 
Levels Window” (page 19) in the section 
“Dedicated Windows for Cubase Series.”
 LINE INPUT 3/4 (phone type, balanced/
unbalanced)
For connection to a digital instrument.
 MIC/LINE/HI-Z 1/2 (XLR/phone type, 
balanced/unbalanced)
For connection to a microphone, digital 
instrument, electric guitar, or electric bass. 
						

							Panel Controls and Terminals (Details)
UR28M  Operation Manual5
Front Panel
HI-Z switch
Turns on (0 ) and off (/) the HI-Z of the MIC/
LINE/HI-Z.
Turn this switch on when connecting high 
impedance instruments, such as an electric 
guitar or electric bass, directly to the MIC/LINE/
HI-Z.
When you turn this switch on, use an unbalanced 
phone cable for connection between the 
instruments and the MIC/LINE/HI-Z. If you use a 
balanced cable or an XLR  cable, this device will 
not work correctly.
CAUTION
• Do not connect or disconnect a device while turning 
on the HI-Z switch. Doing so can damage the 
connected device and/or  the unit itself.
• To protect your speaker system, leave the monitor  speakers turned off when turning the HI-Z switch on/
off. It’s also a good idea to turn all output volume 
controls down to their minimum. Neglect of these 
precautions may result in large noise bursts that may 
damage your equipment, your ears, or both.
 PA D  s w i t c h
Turns on ( 0) and off (/ ) the PAD of the MIC/
LINE/HI-Z.
When you turn this switch on, the input signal 
level of the MIC/LINE/HI- Z will be attenuated by 
26 dB. Turn this switch on when connecting high 
output equipment, such as a synthesizer, to the 
MIC/LINE/HI-Z.
 +48V button
Turns on (lit) and off (dark) the phantom power of 
the MIC/LINE/HI-Z 1 and 2 (XLR type).
When you turn this button on, phantom power will 
be supplied to the MIC/LINE/HI-Z 1 and 2. Turn 
this button on when connecting phantom 
powered devices, such as a condenser 
microphone, to the MIC/LINE/HI-Z 1/2.
CAUTION
• Make sure that phantom po wer is turned OFF unless 
it is needed. 
						

							Panel Controls and Terminals (Details)
UR28M  Operation Manual6
• When turning phantom power ON, make sure that no 
equipment other than phantom-powered devices 
such as condenser microphones are connected. 
Devices other than conden ser microphones may be 
damaged if connected to the phantom power supply. 
Note, however, that the switch may be left on when 
connecting to balanced dynamic microphones. When 
connecting an unbalanced de vice to the MIC/LINE/HI-
Z 1/2 and phantom power is turned on, hum or noise 
may result; this is not a ma lfunction or failure in the 
device.
• Do not connect or disconnect a device while  phantom power is applied. Doing so can damage the 
connected device and/or  the unit itself.
• To protect your speaker system, leave the monitor  speakers turned off when switching the phantom 
power on/off. It’s also a good idea to turn all output 
volume controls down to their minimum. Neglect of 
these precautions may result in large noise bursts 
that may damage your equipment, your ears, or both.
 INPUT GAIN knob 1/2
Adjusts the input signal level of the MIC/LINE/HI-
Z 1/2. The adjustable range varies depending on 
the on/off setting of the PAD switch.
 PHONES knob 1/2
Adjusts the output signal level of the PHONES 1/
2. This output signal level is not affected by the 
OUTPUT LEVEL knob.
PHONES 1 outputs the MIX 1 signals. PHONE 2 
outputs one of the MIX 1–3 signals. To select the 
output signal of the PHONES 2, use the 
“Headphone Area” (page 13) in the section 
“dspMixFx UR28M” or the “Headphones Window” 
(page 18) in the section “Dedicated Windows for 
Cubase Series.”
 2TR IN LEVEL knob
Adjusts the input signal level of the 2TR IN signal.
The input signal at 2TR IN flows only to MIX 1, 
and not to the computer.
 2TR IN ON button
Turns on (lit) and off (dark) the 2TR IN.
 INPUT meter
Indicates the input signal  level of the analog input 
jacks (MIC/LINE/HI-Z 1/2 or LINE INPUT 3/4). To select which analog in
put jacks’ levels are to 
be indicated, use the “Setup Window” (page 14) 
in the section “dspMixFx UR28M” or the "Settings 
Window” (page 19) in the section “Dedicated 
Windows for Cubase Series.”
 OUTPUT meter
Indicates the output signal level of the LINE 
OUTPUT selected by the OUTPUT button A–C.

 OUTPUT buttons A–C
For Alternate mode, this selects the particular 
LINE OUTPUT for output. For example, when you 
press OUTPUT button A, only LINE OUTPUT A 
will be selected for outp ut, and OUTPUT button A 
will light.
For Independent mode, this selects the particular 
LINE OUTPUT for control. For example, when you 
press OUTPUT button A, LINE OUTPUT A will be 
selected for control, and OUTPUT button A will 
light.
For details on the mode,  including how to select 
the mode, refer to the “Setup Window” (page 14) 
in the section “dspMixFx UR28M” or the “Master 
Levels Window” (page 19) in the section 
“Dedicated Windows for Cubase Series.”
 SOURCE SELECT button
For Alternate mode, this selects the output signal 
(MIX 1–3) of the LINE OUTPUT.
For Independent mode, this selects the output 
signal (MIX 1–3) of the LINE OUTPUT selected by 
OUTPUT buttons A–C.
For details on the mode,  including how to select 
the mode, refer to the “Setup Window” (page 14) 
in the section “dspMixFx UR28M” or the “Master 
Levels Window” (page 19) in the section 
“Dedicated Windows for Cubase Series.”
PA D R a n g e
On -34 dB – +10 dB
Off -60 dB – -16 dB
Lamp Description
Red Overload
Amber -3 dB or more
Amber -14 dB or more
Green -48 dB or more
Lamp Description Red Overload
Amber -3 dB or more
Amber -14 dB or more
Green -48 dB or more 
						

							Panel Controls and Terminals (Details)
UR28M  Operation Manual7
!MIX 1–3 lamp
For Alternate mode, this indicates the output 
signal (MIX 1–3) of the LINE OUTPUT.
For Independent mode, this indicates the output 
signal (MIX 1–3) of the LINE OUTPUT selected by 
OUTPUT buttons A–C.
For details on the mode, including how to select 
the mode, refer to the “Setup Window” (page 14) 
in the section “dspMixFx UR28M” or the “Master 
Levels Window” (page 19) in the section 
“Dedicated Windows for Cubase Series.”
 DIM button
Turns on (lit) and off (dark) the dimmer of all LINE 
OUTPUT signals.
When you turn on this button, the output signal 
level of all LINE OUTPUT will be attenuated by 20 
dB. Turning on and off th is button will not affect 
the output signal level of PHONES 1/2.
 MONO MIX button
For Alternate mode, this turns on (lit) and off 
(dark) the mono mix for the output signal of the 
LINE OUTPUT.
For Independent mode, this turns on (lit) and off 
(dark) the mono mix for the output signal of the 
LINE OUTPUT selected by OUTPUT buttons A–C.
You can confirm the phase or mix balance of the 
sound by using this button.
For details on the mode, including how to select 
the mode, refer to the “Setup Window” (page 14) 
in the section “dspMixFx UR28M” or the “Master 
Levels Window” (page 19) in the section 
“Dedicated Windows for Cubase Series.”
 OUTPUT LEVEL knob
Adjusts the output signal level of the LINE 
OUTPUT.
When you turn the LINK (page 14) off in the 
Independent mode, you can set different output 
signal levels to each LINE OUTPUT A–C. Press 
one of the OUTPUT buttons A–C then adjust the 
output signal level by the OUTPUT LEVEL knob. 
At this time, the OUTPUT LEVEL knob setting and 
the output signal level are mismatched 
immediately after you select the OUTPUT buttons 
A–C. When you adjust the OUTPUT LEVEL knob, 
the output signal level is applied immediately.CAUTION
When you turn the LINK off,  and set the a significant 
different signal level for each LINE OUTPUT A–C, a 
high volume level may be produced suddenly by 
turning the OUTPUT LEVEL knob, possibly causing 
hearing loss or device damage.
? MUTE button
For Alternate mode, this turns on (lit) and off 
(dark) muting of the LINE OUTPUT signal.
For Independent mode, this turns on (lit) and off 
(dark) muting of the LINE OUTPUT signal 
selected by OUTPUT buttons A–C.
For details on the mode,  including how to select 
the mode, refer to the “Setup Window” (page 14) 
in the section “dspMixFx UR28M” or the “Master 
Levels Window” (page 19) in the section 
“Dedicated Windows for Cubase Series.”
 Power button
Turns the power on and off.
 Word clock source lamp
Indicates the word clock (page 27) source of the 
device.
To select the clock source of the device, use the 
“(device name) Window” (page 8) in the section 
“Control Panel of the Audio Driver” in Windows or 
Audio MIDI Setup in Mac. Power on Press the power button ( ). The 
power button will light.
Power off Hold down the power button ( ) 
for over one second. The power 
button will light dimly.
Lamp Clock Source
S/PDIF The word clock signal input to S/ PDIF IN.
INTERNAL The internal word clock signal.
Lamp status Description
Lit Synchronized with the clock 
source.
Flash Not synchronized with the clock  source. 
						

							Panel Controls for the Software Programs
UR28M  Operation Manual8
Panel Controls for the 
Software Programs
Control Panel of the Audio 
Driver
This is the control panel for selecting the general 
settings of the audio driver. Click the upper tabs to 
select the desired window.
Screenshot
How to Open the Window
Windows
•[Start]  [Control Panel]   [Hardware and Sound] 
or [Sounds, Speech, and Audio Devices]   
[Yamaha Steinberg USB Driver]
• From the Cubase series menu, [Devices]   [Device Setup]   [Yamaha Steinberg USB ASIO] 
  [Control Panel]
Mac
• [System Preferences]   [Yamaha Steinberg USB]
• From the Cubase series menu, [Devices]   [Device Setup]   [Steinberg UR28M]   [Control 
Panel]   [Open Config App]
Panel Controls
(Device name) Window
This is the window for sele cting the sample rate or 
word clock source of the device.
 Sample Rate (Windows only)
Selects the sample rate of the device.
Option:  44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
NOTE
For Mac, select the sample rate of the device via the 
Audio MIDI Setup.
Clock Source (Windows only)
Selects the word clock source of the device.
NOTE
For Mac, select the word clock source of the device 
via the Audio MIDI Setup.
Enable Power Management
Select enable (checkmark) and disable (no 
checkmark) for automatic power off.
The device is equipped with an automatic power 
off function. When this function is enabled, the 
power of the device will turn off automatically 
(after thirty minutes) when one of the following 
actions is performed. T he power button will flash 
during the thirty-minute interval.
• Turning off the computer.
• Disconnecting the USB cable between the device 
and the computer.
Option Clock Source
S/PDIF The word clock signal input to S/ PDIF IN.
Internal The internal word clock signal. 
						

							Panel Controls for the Software Programs
UR28M  Operation Manual9
ASIO Window (Windows only)
This is the window for selecting the ASIO driver 
settings.
Device
Selects the device that  will be using the ASIO 
driver. This function is available when connecting 
to the computer two or more devices compatible 
with the Yamaha Steinberg USB Driver.
 Buffer Size
Selects the buffer size (page 27) for the ASIO 
driver. The range varies depending on the sample 
rate.
NOTE
For Mac, select the buffer size in the buffer size 
selecting window, which is opened from an 
application such as DAW software.
Input Latency/Output Latency
Indicates the delay time for the audio input and 
output in millisecond units.
Audio latency varies depending on the value of 
the ASIO buffer size. The lower the value of the 
ASIO buffer size, the lower the value of Audio 
latency.
About Window
This window indicates information about the audio 
driver.
About
Indicates the version and copyright of the audio 
driver. The letters “x.x.x” indicate the version 
number.
dspMixFx UR28M
This is the window for configuring the DSP mixer 
and DSP effect equipped with the device. The 
signals flow top-to-down and left-to-right. The 
dspMixFx UR28M provides stand-alone operation.
NOTE
You cannot operate the dspMixFx UR28M while a 
Cubase series DAW is running. When Cubase is 
running, configure the DSP mixer and DSP effect from 
“Dedicated Windows for Cubase Series” (page 15).
Screenshot
Sample Rate Range
48 kHz or lower 64 samples – 2048 samples
88.2 kHz or higher 128 samples – 4096 samples 
						

							Panel Controls for the Software Programs
UR28M  Operation Manual10
How to Open the Window
Windows
[Start]  [All Programs]   [Steinberg UR28M]   
[dspMixFx UR28M]
Mac
[Macintosh HD]   [Applications]   [dspMixFx 
UR28M]
Panel Controls
To o l  A r e a
This is the area for configuring the common settings 
of the dspMixFx UR28M.
 Quit
Quits the dspMixFx UR28M.
 Minimize
Minimizes the dspMixFx UR28M window.
 Menu
Provides four menus, including Save the settings 
file of the dspMixFx UR28M (page 27) and Import 
Scene (page 27). 
Scene
Indicates the scene name. You can change the 
scene name by clicking on it.
When you click the button on the right side, the 
window for calling up t he scene will open. You 
can call up the scene by clicking it. To cancel 
calling up the scene, clic k outside of the window.
 STORE
Opens the scene store window. Enter the desired 
scene name into the STORE NAME field. Select 
the destination for storing the scene in the No. 
NAME field. Click [OK] to store the scene.
 Selecting the window
Selects the dspMixFx UR28M window. The 
selected window icon will light in red.
 Help
Opens the Operation Manual (this manual).
Menu Description
Open Opens the settings file of the  dspMixFx UR28M.
Save Saves the settings file of the  dspMixFx UR28M to a computer.
Import 
Scene Imports a scene from the settings file 
of the dspMixFx UR28M. Select the 
settings file of the dspMixFx UR28M 
and import scene on the left side of 
the IMPORT SCENE window. Select 
the destination for importing on the 
right side of the window. Click [OK] 
to import it.
Initialize All 
Scenes Deletes all the saved scenes.
Icon Description
Main window (page 11)
Setup window (page 14)
Information window (page 15)