Apogee Apogee Duet User manual

User’s Guide
December 2008

Table of Contents
Package Contents 2
Introducing Duet 3
Quick Start Guide 4-7
System Requirements 4
Install Apogee Software Package 4
Connect FireWire cable 4
Select Duet in System Preferences 5
Connect Headphones 5
Using Duet with GarageBand 6
Using Duet with Logic Pro 7
Operation 8-11
Top Panel Encoder 8
Control Panel Options 9
OS X System Preferences 10-11
OS X Audio MIDI Setup 10-11
Maestro 12-19
Maestro Control – Levels 12-13
Maestro Control – Advanced 14
Meters Display 14
Over Hold 14
Maestro Control – Advanced: Out Muting 14-15
Maestro Control – Advanced: MIDI Controllers 16-17
Maestro Control – Low Latency Mixing 18-19
Maestro Mixer 20-21
Maestro Preferences – Duet Preferences 22
Launch Maestro automatically when connecting Duet 22
Enable Duet pop-ups 22
Maestro Menu by Menu 24-26
Connecting Your Duet: 27-31
Instrument and Mic 28
Instrument and Instrument 29
Mic and Mic 30
Powered Monitors 31
Connecting to a Home Stereo 32
Troubleshooting 33
Core Audio Applications Guide 34-36
Using Duet with Apple Soundtrack Pro 34
Using Duet with Mainstage 34
Using Duet with Final Cut Pro 35
Using Duet with Ableton Live 35
Using Duet with MOTU Digital Performer 36
Using Duet with Steinberg Nuendo 36
Features & Specications 37
System Requirements 37
Notications 38-40
Registration and Warranty Information 34
Service Information 34
Declarations of Conformity 35
Duet User’s Guide

Duet – User’s Guide
2
Duet – User’s Guide
3
Introducing Duet
Input and Output Level
These LEDs display
the level of the input or output
selected with the encoder.
FireWire Port
Using the included FireWire
cable, connect your Mac
here – Duet is powered from
the FireWire connection.
The Encoder Knob
Setting levels couldn’t be easier.
Press the encoder to select an
input or output level to set, and
turn the encoder to obtain the
desired level.
I/O Breakout Cable
Using the included
breakout cable,
connect microphones,
instruments, and line
outputs here.
Headphone Output
Connect your headphones here.
Phantom Power
These LEDs indicate that
48 volt phantom power
is engaged on the
connections.
Duet’s breakout cable
Duet User’s GuideApogee Software CD
1 meter FireWire cable
Package Contents
Duet
The following items should be included in your
Duet package:
Duet•
1 meter FireWire cable•
Duet’s breakout cable•
Apogee Software CD•
Duet’s User Guide•
2 1/4 “ mono plug to•
RCA female adapters

Duet – User’s Guide
4Quick Start Guide
Duet – User’s Guide
5
Quick Start Guide
Quick Start Guide
Choose Duet for Mac
Sound I/O
After connecting Duet to your
Mac, the dialog box shown at
the left will appear. Click Yes
to choose Duet for Mac sound
output and input.
This selection may also
be made in the System
Preferences > Sound > Output
pane.
Connect Headphones
Now, connect a pair of
headphones to Duet’s
headphone output, open
iTunes, and initiate playback of
an audio selection. Playback
should be audible in the
connected headphones and
displayed on Duet’s top panel
meters.
Quick Start Guide
System Requirements
Mac G4 1GHz or faster, PPC or Intel CPU, 1 GB RAM minimum, 2 GB recommended,
OS X : 10.4.11 or greater must be installed, 10.5.3 or greater highly recommended.
Install Apogee Software Package
Insert the included CD into your Mac,
double click on the “Duet Software
Installer” icon, and follow the on-screen
instructions. When the installation is
complete you will be required to restart
your Mac.
Connect FireWire cable
After restarting your Mac, connect Duet’s
FireWire port to a FireWire 400 port on
your Mac using the provided cable.
If you Mac has Firewire 800 ports only,
connect Duet using a FW400 to FW800
cable. Note that, in this case, the FW800
port runs at the FW400 speed.
As Duet is powered through the FireWire
connection, the OUT LED should light
immediately.
2
4
3
1

Duet – User’s Guide
6Quick Start Guide
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Quick Start Guide
Quick Start Guide
Using Duet with GarageBand
4.0.0 or greater recommended
In GarageBand, choose GarageBand >
Preferences, click on the Audio/Midi icon
and set Audio Output and Audio Input to
Duet.
Click on the Advanced icon and set Audio
Resolution to Better or Best.
Choose Track > New Basic Track...
Double click the new track’s header to
view the Track Info pane; in this pane,
set Input Source to Mono 1 (Duet); set
Monitor to On.
To open GarageBand’s Apogee Duet
control panel, click on the Edit button
next to the Input Source menu.
Connect the provided breakout
cable to Duet’s I/O connection, and
connect a mic to the IN-1 XLR
connector.
Click the center of the
top panel encoder until
the IN-1 LED lights,
then turn the encoder to
obtain a proper recording
level on the record-
enabled track.
You’re now ready to record!
5
Quick Start Guide
Using Duet with Logic Pro/Express
8.0.2 or higher recommended
Under the Logic Pro menu, choose
Preferences > Audio. Click on the Device
tab, then on the Core Audio tab.
In the Core Audio pane, select Duet in
the Device menu. Select 128 in the I/O
Buffer Size menu.
Choose Audio > I/O Labels under the
Optionsmenu.Option-clickontherst
radio button under the Driver’s I/O Labels
column. Now, Duet’s hardware labels
appear in the input and output selections
of your Logic session.
To control Duet directly from your Logic
session, choose Audio > Open Apogee
Control Panel under the Options menu.
If you’re using another CoreAudio-
compatible audio software app, use
Apogee’s Maestro software (installed
in your Applications folder in Step 1) to
control Duet.
6

Duet – User’s Guide
8Operation
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9
Operation
Operation
Duet’s settings may be easily changed using either its top panel encoder or the variety of
software control panels described on page 10. Though several options are possible, you
can choose the hardware and software controls that best suit your individual needs. For
example, Logic Pro users may choose to adjust levels with Duet’s top panel encoder and
change static settings (such as input selection or phase) from the Apogee Control Panel
found in Logic Pro 8. For convenience, many settings may be controlled from multiple
control panels. The chart on page 9 indicates the settings and functions that may be
changed from each control panel.
Duet Top Panel Encoder
Duet’s top panel encoder provides simple and immediate control of input and output level
settings.
Output level
To change Duet’s output level (i.e the listening level of headphone and connected
speakers), press and release the encoder repeatedly until the OUT LED lights.
Now, turn the encoder to the desired listening level. The hardware encoder
operates in parallel with any software level controls.
Input level
To change Duet’s input level (i.e the recording level of mics and instruments),
press and release the encoder repeatedly until the IN-1 or IN-2 LED lights.
Now, turn the encoder until the desired recording level is obtained
(as seen in your recording software).
Mute outputs
To mute the line and headphone outputs simultaneously, press and hold down
the encoder until the OUT LED blinks; press and hold again to unmute outputs.
MIDI controller
The encoder can also send MIDI Controller and Song Position data to software
applications. Please see pages 16-17 for details.
Operation
Duet
Hardware
Encoder
Apogee
Maestro
Apogee
Control
Panel
(in Logic)
Apogee
Duet pane
in Garage-
Band
Audio
MIDI Setup
System
Prefs
Input gain
Input Control -
Selection, 48v, Group,
Phase
Output Control -
Attenuation, Mute
Output Control -
Nominal Level
Low Latency Mixer
Advanced Functions
*
MIDI Controller
Sample Rate (see
p.10)
Assign Duet as Input/
Output for OSX
* All but Gain Mode

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10 Operation
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Operation
Apogee Maestro
OS x System Preferences
Apogee Control Panel
OS X Audio MIDI Setup
Operation
Apogee Maestro
Apogee Maestro software provides the most complete control of Duet, including control of
allsettings,store/recallofcongurationsandlow-latencymixing.Ifyourrecordingsoftware
doesn’t include an Apogee control panel, then use Apogee Maestro to make settings.
Maestro low latency mixer
While recording, if you notice a delay between the moment you play or sing a
note and when you hear it in your headphones, Maestro’s low latency mixer may
help. Please see pages 18-21 for more details about the low latency mixer.
For a more complete explanation of Maestro, please see pages 12-26.
Apogee Control Panel (Logic Pro 8, GarageBand)
The Apogee Control Panel, found in Apple’s Logic Pro 8 and GarageBand software,
providescontrolofDuetsettingsandstore/recallofcongurations.Thecontrolpanelsin
these programs duplicate all of the settings found in the Maestro Control panel.
OS X System Preferences
The OS X System Preferences Sound window provides settings to choose Duet for Mac sound
input and output . If you didn’t choose Duet for Mac sound I/O in step 3 of the Quickstart guide,
you may do so in this window.
Choose Apple menu > System Preferences;
Open the Sound preference window by clicking on the speaker icon;
Click on the Output tab and select Duet in the Device window;
Click on the Input tab and select Duet in the Device window.
OS X Audio MIDI Setup
OS X Audio MIDI Setup (found in the Applications/Utilities folder) provides control of Duet’s
sample rate and output level, as well as settings to choose Duet for Mac sound input and
output. To control Duet’s output level and muting from AMS or from the Mac keyboard, set
Default Output to Duet.
Setting Sample Rate
Duet operates at all standard sample rates between 44k1 and 96k. In most cases
the sample rate is set by the audio application with which Duet is communicating.
For example, when using Duet with GarageBand, Duet’s sample rate is
automatically set to 44k1, to match the GarageBand song’s sample rate. For
those audio applications that don’t include a sample rate setting, such as iTunes,
Duet’s sample rate may be set in Audio Midi Setup.

Duet – User’s Guide
12 Maestro
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13
Maestro
Maestro Control – Levels
Interface Menu
When Duet is properly detected by Maestro, Duet plus the unit’s serial number
appears in this menu.
Identify Unit
ClickingonthisbuttonveriesthatcommunicationisestablishedbetweenMaestro
software and Duet hardware by lighting all top panel LEDs. Click the button again to
return Duet’s LEDs to their normal function.
Input
This menu is used to select the input connector and level:
XLR Line +4dBu – Set Input to XLR Line +4dBu if you’ve connected
a professional level line input, such as a pro mixing console, to the IN
(XLR) connectors.
XLR Line –10 dBV – Set Input to XLR Line -10dBV if you’ve connected
a consumer level line input, such as a CD player, to the IN (XLR)
connectors.
XLR Mic – Set Input to XLR Mic if you’ve connected a microphone to the
IN (XLR) connectors. The gain is adjustable between 10 and 75 dB.
Instrument – Set Input to Instrument if you’ve connected a guitar or
keyboard to the IN (1/4”) connectors; gain is adjustable between 0
and 65 dB. It’s also possible to connect CD players and other consumer
level (-10 dBV) devices to these inputs.
When Input is set to XLR Mic or Instrument, the following controls are accessible:
Group – Check either of these boxes to group the gain setting of both
inputs, so that the hardware encoder or one software encoder controls
both input gains simultaneously. If a gain offset is present between inputs
when Group is checked, this offset is preserved.
Input Level Software Encoder – The gain of each input may be
controlled from these software encoders. The gain level is indicated in the
value box to the right of the encoder.
Phase icon – Check this box to reverse the polarity of the input signal.
Under certain circumstances when two mics are used on one source,
reversing the polarity of one mic may result in a fuller sound. For
example, when placing mics over and under a snare drum, a fuller sound
is obtained when the polarity of the bottom mic is reversed.
48V – Check this box to enable 48 volt phantom power on the XLR
connections. Condenser mics require phantom power to operate.
Maestro
1
2
3
4
5
6
Level
The nominal or average level of the line outputs is set with this menu:
Line out – Set Level to Line out when connecting Duet’s OUT-L or
OUT-Rconnectorstopoweredspeakers,ahi-systemoramixing
console.
Instrument Amp – Set Level to Instrument Amp when connecting
Duet’s OUT-L or OUT-R connectors to an instrument amp input. The
outputlevelisxed.
Output Level Software Encoder
The level of both line and headphone outputs is controlled simultaneously with this
software encoder, when Level is set to Line out. The attenuation level is indicated
in the value box to the right of the encoder.
Mute
Checking this box mutes the line and headphone outputs simultaneously.
7
8
9
1
2
3
7
89
Maestro
4
56

Duet – User’s Guide
14 Maestro
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Maestro
Maestro Control – Advanced
OUT Muting – These check boxes determine which outputs actually mute when the
Mute function is engaged. Here are a few example settings:
When boxes are checked as shown at left, it’s possible
to switch between a recording mode (headphones on,
speakers connected to line outputs off) and a playback
mode (headphones off, speakers on) with one action –
engaging and disengaging Mute. As the volume control
for the two outputs is shared, it’s a good idea to check
your level before unmuting line outs.
When boxes are checked as shown at left, the
headphone outputs are never muted; when Mute is
engaged, only the line outputs are muted.
Mic/Instrument gain mode – This menu sets the input gain mode:
Max. Gain range – The full range of gain is available, with a relay switch
occurringaftertherst10dBofgain.
Clickless Operation – The gain range is reduced slightly but no relays
are employed, resulting in clickless operation regardless of gain setting.
An appropriate gain range is set based on the Input and 48V settings.
Meters Display
This menu selects the signal to be displayed on the top panel meters; selections are
Input, Output, or Follow Selection. When Follow Selection is chosen, the meter
display follows the top panel setting indicator; thus, when either IN-1 or IN-2 is
selected, the meter displays both inputs, when OUT is selected, the meter displays
the stereo output.
Over Hold
When Over Hold is set to Innite, Over indications remain “on” until cleared by
the user. Overs may be cleared by clicking on the Over indicator or clicking Clear
Overs in the Maestro Mixer pane. When Over Hold is set to 2 seconds, Over
indications clear automatically after two seconds.
Maestro
2
3
4
1
2
3
4
Maestro
1

Duet – User’s Guide
16 Maestro
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Maestro
Maestro Control – Advanced: MIDI Controllers
Number of MIDI Controllers – To access Duet’s MIDI functionality, instantiate 1
to 4 virtual MIDI controllers using this counter. Once 1 or more MIDI controllers
areinstantiated,theymaybemodiedwitheitherthetoppanelencoderorthe
corresponding software encoder. To select a MIDI controller using the top panel
encoder, press the encoder until the Duet pop-up displays selection of the desired
MIDI controller (see p. 16 for more about Duet pop-ups). Note that when MIDI
controllers are selected, none of the top panel (IN-1, IN-2 ,OUT) LEDs are lit.
When Number of MIDI Controllers is set to 1to 4, the following settings are
accessible:
MIDI encoder – This software encoder is used to send MIDI Controller or
Song Position data to software applications
When the function menu is set to Controller, the following settings are accessible:
Number – This box displays the MIDI Continuous Controller number.
The full range of 7-bit controls (0 to 127) may be entered.
Chan: – This box displays the MIDI channel over which controller data is
sent. Numbers between 1-16 may be entered.
Value – Numbers in the range 0-127 may be directly entered (followed by
Enter or Return keys to accept the value), though rotation of the encoder
will override numerical entry.
When the function menu is set to Song Position, the following setting is accessible:
1/4 Note – This box displays the current Song Position location, as
denedasthenumberof1/4notebeatsfromthebeginningofthesong,
beat 0
Maestro
1
2
3
4
5
6
Maestro
1
2
3
4
5
6

Duet – User’s Guide
18 Maestro
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19
Maestro
Maestro
Low Latency mixing
Before describing the functions of Maestro’s Mixer pane, a bit of background information
concerning latency and computer-based digital recording setups will help you better
understand these functions.
When recording with most computer-based digital audio applications, the delay between
the input and output of the recording system often disturbs the timing of the musicians
performing. This delay, known as latency, means that the musician hears the notes he’s
produced a few milliseconds after having produced them. As anyone who has spoken
on a phone call with echo knows, relatively short delays can confuse the timing of any
conversation, spoken or musical.
Toillustratetheeffectoflatency,gureAdepictsthetypicalsignalpathofavocaloverdub
session. A vocalist sings into a microphone, which is routed to an analog to digital
converter, then to the audio software application for recording. In the software application,
the vocalist’s live signal is mixed with the playback of previously recorded tracks, routed
toadigitaltoanalogconverter,andnallytothevocalist’sheadphones.Aslightdelay
accumulates at each conversion stage, while a much greater amount of delay occurs
through the software application, resulting in the vocalist hearing his performance in
headphones delayed by several milliseconds.
Figure 1
Figure A
Low Latency mixing - continued
By routing the hardware input directly to the hardware output and mixing in playback as
shown in Figure B, it’s possible to provide the vocalist a headphone monitoring signal with
a much shorter delay.
First, the signal being recorded (in this case, a vocal mic) is split just after the A/D stage
and routed to both the software applicaton for recording and directly back to the hardware
outputs without going through the latency-inducing software; this creates a low latency path
from mic to headphones. Next, a stereo mix of playback tracks is routed to the low latency
mixer and combined with the hardware input(s). This allows the performer to hear himself
without a confusing delay while listening to playback tracks in order to record overdubs.
Note that the software application’s mixer is used to set a stereo mix of playback tracks
while the low latency mixer is used to set the balance between the stereo playback mix and
the hardware inputs.
Maestro
Figure 2
Figure B

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20 Maestro
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Maestro
Maestro Mixer
The Maestro mixer provides the ability to blend Duet’s hardware inputs with playback from
an audio application, and route the resulting mix to Duet’s hardware outputs. Using the
Maestro mixer, it’s possible to create a monitor mix where latency isn’t a problem.
Input 1, Input 2 – These channels
provide mixing facilities to route
and mix signal from each of Duet’s
hardware inputs directly to Duet’s
hardware outputs. The actual input
source is determined by the Input
setting (p. 12).
From Mac - This channel provides
mixing facilities to mix the output
of an audio application to Duet’s
hardware outputs.
To Hardware – This channel
provides mixer output level and
routing.
When To Hardware is set to Out
L-R, the mixer’s output is sent to
Duet’s hardware outputs.
When To Hardware is set to None,
the mixer is disabled and the audio
application’s output is sent directly
to Duet’s hardware outputs, thus
bypassing the Maestro Mixer.
Maestro
1
2
3
1 2 3
Working with the Maestro Mixer
Do I need the Maestro Mixer?
The Maestro mixer serves to provide a low latency monitoring mix while recording.
Therefore if you’re using Duet to listen to iTunes or audio from another program, there’s no
need to use the mixer. Set To Hardware to None to disable the mixer.
It’s possible that the latency of your particular recording system is low enough to be
unnoticed. The system latency is determined by the recording software’s buffer setting,
and if your Mac is powerful enough, it’s possible to set the buffer to a lower value (shorter
latency) without encountering clicks and pops in the audio output. If the latency doesn’t
pose a problem while recording, the mixer may be disabled by setting To Hardware to
None.
Recording software settings
Before using the Maestro mixer, it’s necessary to change a few settings in your recording
software.
Software monitoring - Because the signal to be recorded is monitored through the
Maestro mixer, the outputs of software tracks actively recording should be muted - after
all, that’s the source of the latency. Most software applications provide an option to turn off
software monitoring of recording tracks. In Logic Pro, for example, the software monitoring
option is found in the same Audio preferences window used to select Duet as the hardware
device (Logic Pro > Preferences > Audio). Uncheck the Software Monitoring box.
Playback mix - In your recording software, set up a mix of all playback tracks and route it
to Out L-R. If a master fader controls the global output of the mix, it’s suggested to set the
fader to 0 dB.
Maestro settings
Maestro Mixer settings - Initially, set the Input, From Mac and To Hardware faders to 0
dB. Set the To Hardware menu to Out L-R.
After making the input selection and setting gain (as described on page 12), the signal
should be displayed on both the Input and To Hardware meters. If the Input’s Over LED
lights, reduce the input gain in the Maestro Control window. If the To Hardware’s Over LEDs
light, reduce the Input fader.
Now start playback from the session. The playback signal should be displayed on the
From Mac and To Hardware’s meters. Use the From Mac and Input faders to establish a
balance between the input and playback signals. If you’ve found a good balance but the To
Hardware’s Over LEDs light, reduce the To Hardware fader.

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22 Maestro
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23
Maestro
Maestro
Maestro Preferences – Duet Preferences
ThetwoMaestropreferencesspecictoDuetaredescribedbelow.Foradescriptionof
other preference settings, please see page 24.
Launch Maestro automatically when connecting a device
When this box is checked, Maestro is launched automatically when Duet is discovered
on the Mac’s FireWire bus. In order for Maestro mixer settings to be recalled after the
computer restarts, this box must be checked. If this preference is unchecked, Maestro
Mixer settings won’t be preserved after the Mac has been shut down or restarted.
Enable Duet pop-ups
When this box is checked, Encoder pop-ups appear on the Mac which display various Duet
settings, including input and output levels, Input, Group and muting. To illustrate, a few
examples are shown below:
IN-1 selected,
Input set to XLR Mic,
encoder set to 40 dB
IN-1 and IN-2 selected,
Group checked,
Input 1 set to XLR Mic,
Input 2 set to Instrument,
encoder 1 set to 30 dB,
encoder 2 set to 40 dB.
Maestro
OUT Level set to –12 dB
Mute engaged
OUT muting set as below
Mute engaged,
OUT muting set as below
Encoder set to modify MIDI Controller 1

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24 Maestro
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25
Maestro
Maestro
Rotary Controls
Mouse motion–Thisselectiondenesthemotionofthemouserequiredtoadjust
rotary controls.
Fine adjust key–Thisselectiondenesthekeycommandtomakeneadjustmentsto
any rotary control.
Fader Controls
Fine adjust key -Thisselectiondenesthekey
commandtomakeneadjustmentstoanyfadercontrol.
0dB key–Thisselectiondenesthekeycommandto
set the fader to 0 dB when clicking in the level value
window.
Ungroup faders -Thisselectiondenesthekey
command to adjust one side of the stereo From Mac
and To Hardware faders.
Pan Controls
Fine adjust key-Thisselectiondenesthekey
commandtomakeneadjustmentstoanypancontrol.
Center-Thisselectiondenesthekeycommandtoset
the pan control to <0>, or center, when clicking in the
pan value window.
Other
Mute/Solo all-ThisselectiondenesthekeycommandtoengageallMutesorSolos
when clicking on the Mute or Solo buttons.
Additional Preferences
Launch Maestro automatically when connecting a device - When this box is
checked, Maestro is launched automatically when Duet is detected.
Maestro > About Maestro
Selecting this menu item opens
the window shown at right, which
indicates various software and
rmwareversions.
Menu by Menu
Maestro > Preferences
Selecting this menu item opens the Preferences window, in which mixer control actions may
bedened.
Maestro
Menu by Menu
Maestro > Hide Maestro
Choosing this menu item hides the Maestro application.
Maestro > Hide Others
Choosing this menu item hides all other open applications.
Maestro > Show All
If Hide Others has been previously selected, choosing this menu item reveals all open
applications in the Finder.
Maestro > Quit Maestro
Choosing this menu item closes the Maestro program.
File:
File > Open
ChoosethismenuitemtonavigatetoapreviouslysavedMaestrocongurationleand
open it.
File > Open Recent
Choosethismenuitemtore-openarecentlyopenedMaestrocongurationle.
File > Close Window
Choose this menu item to close the “active”, or up-front, window.
File > Save
Choose this menu item to save the current settings of all windows.
File > Save As
Choosethismenuitemtosavethecurrentsettingsofallwindowsasanewlynamedle.

Duet – User’s Guide
26 Maestro
Duet – User’s Guide
27
Connecting Your Duet
Maestro
Window:
Window > Minimize
Choosing this menu item minimizes the up-front window to the OS Dock.
Window > Zoom
Choosing this menu item maximizes the size of the active Maestro window.
Window > Bring All to Front
Choosing this menu item places all Maestro windows in front of other applications’
windows.
Tools:
Tools > Maestro Control
Choosing this menu item opens the Maestro Control window.
Tools > Maestro Mixer
Choosing this menu item opens the Routing/Mixer window.
Tools > Reset Symphony Clocking
IncertaininstancesApogeeinterfacescan’tbedetecteduntiltheclocksettingoftherst
interface has been reset. Choosing Reset Symphony Clocking allows the reset of clock
sourceontherstinterfacetoInternalorExternal.
Tools > Refresh Connections
Choosing this menu item re-scans computer connections for connected Apogee
hardware.
Tools > Reset Mixer
Maestro mixers may be reset with this menu item; choose Reset Displayed to reset the
mixer displayed in the Maestro Mixer window; choose Reset All to reset all mixers.
Tools > Reset Routing
Choosing this menu item resets the Input and Output panes to a “pass through”
conguration,wherehardwareandsoftwareI/Oareconnectedonaonetoonebasis.
Menu by Menu
Connect monitors to the 1/4” outputs
with the icons labeled OUT-L and
OUT-R on the breakout cable.
Connect headphones to the
1/4” output with the icon.
Connecting Your Duet:
Monitors and Headphones
If your monitor inputs
or stereo inputs are the
RCA type, please use the
adapters included to make
the connection. Plug the
adapter into the OUT-L and
OUT-R connections on the
Duet breakout cable, then
connect the RCA cable.

Duet – User’s Guide
28 Connecting Your Duet
Duet – User’s Guide
29
Connecting Your Duet
Connecting Your Duet:
Instrument and Mic
Connect an instrument to the 1/4”
input with the icon labeled
IN-1 on the breakout cable.
Connect a microphone to the
XLR input with the icon labeled
IN-2 on the breakout cable..
Connecting Your Duet:
Instrument and Instrument
Connect an instrument to the 1/4”
input with the icon labeled
IN-1on the breakout cable.
Connect an instrument to the 1/4”
input with the icon labeled
IN-2 on the breakout cable.

Duet – User’s Guide
30 Connecting Your Duet
Duet – User’s Guide
31
Connecting Your Duet
Connecting Your Duet:
Mic and Mic
Connect a microphone to the XLR
input with the icon labeled IN-2
on the breakout cable.
Connect a microphone to the XLR
input with the icon labeled IN-1
on the breakout cable.
Connecting Your Duet
Connect monitors to the 1/4” outputs
with the icons labeled OUT-L and
OUT-R on the breakout cable.
Powered Monitors
Duet is also the best way to listen to audio from your Mac, be it from your iTunes library, an
Internet radio station or CD/DVD playback.
To connect Duet's line outputs directly to powered speakers, you'll need 2 cables with
1/4" tip-sleeve plugs on one end to connect to Duet's OUT-L and OUT-R jacks and the
appropriate connector on the other ends to connect your speakers. For your convenience,
2 1/4" to RCA adaptors are included with Duet, allowing the use of commonly available
RCA to RCA cables when connecting consumer stereo equipment.
When connecting to powered monitors, use Duet's encoder knob to control playback volume.

Duet – User’s Guide
32 Connecting Your Duet
Duet – User’s Guide
33
Troubleshooting
Connecting To A Home Stereo:
To connect Duet directly to your home audio system, insert the provided 1/4” to RCA adaptors
in Duet’s OUT-L and OUT-R jacks and use a commonly available RCA to RCA cable to
connect to the AUX or CD input of your receiver.
When connecting to a home audio system, set Duet’s output to 0 dB (i.e full volume) and use
the receiver’s volume control to set playback level.
Once audio connections have been made, connect Duet’s Firewire port to your Mac. Once
connected, the dialog box shown below will appear. Click Yes to choose Duet for Mac sound
output and input.
This selection may also be made in the System Preferences > Sound > Output panel.
In iTunes, select Computer as the sound output. Any audio that is played back in iTunes will
now be routed to Duet and the output will be available on your home audio system.
Troubleshooting
Q: When I press the encoder to select an input or output, the selection is unavailable. Why?
A: When the inputs are set to XLR line or the output is set to Instrument Amp,
the encoder disabled, and thus not selectable
Q: When I press the encoder to select an input or output, ALL the LEDs go out. Why?
A: When 1 or more MIDI controllers are instantiated and selected for control
by the top panel encoder, all the top panel I/O LEDs are turned off to indicate
selection of a MIDI controller. If pop-ups are enabled in Maestro preferences, the
MIDI controller selected will be displayed on screen.
Q: I’ve connected my guitar, but I’m not getting any input. What should I check?
A: In Maestro, be sure to set Input to Instrument.
Q: I’m not getting any output from audio software applications. What should I check?
A: If the OUTLEDisashing,theoutputismuted.Pressandholddownthe
top panel encoder until the OUTLEDstopsashing.Also,iftheMaestroMixer’s
output has been set to Out L-R, then the From Mac fader must be raised to send
audio software application outputs to Duet’s outputs.
Q: I want Maestro to open automatically each time I connect Duet. What should I set?
A: Open Maestro > Preferences and check the Launch Maestro automatically
when connecting a device checkbox.
Q: Can I set the headphone and line outputs to different levels?
A: The headphone and line outputs are always controlled simultaneously. To set
the balance between headphones and speakers connected to the line outputs,
setthespeaker’samplieraccordingly.Itispossibletomutetheheadphonesand
line outputs independently.
Q: How do I reset Duet?
A: To reset Duet press and hold the encoder for 5 seconds. All settings will
return to their default state.

Duet – User’s Guide
34 Troubleshooting
Duet – User’s Guide
35
Troubleshooting
Using Duet with Apple Soundtrack Pro
Choose Soundtrack Pro > Preferences.
Click on the Recording tab.
Select Duet in both the Input and Monitor menus.
Close the Preferences window after making settings.
Using Duet with Apple MainStage
Choose MainStage > Preferences
Click on the Audio/Midi tab
Select Duet in the Audio Output and Audio Input
menus
Set I/O Buffer Size to 128
Close the Preferences window after making settings.
To control Duet directly from your Mainstage
session, choose Mainstage > Open Apogee Control
Panel.
Core Audio Applications Guide
Using Duet with Apple Final Cut Pro
Choose Final Cut Pro > Audio/Video Settings.
Click on the A/V Devices tab.
Select Duet in the Audio menu.
Click OK.
Using Duet with Ableton Live
Choose Live > Preferences
Click on the Audio tab.
Select CoreAudio in the Driver Type menu.
Select Duet in both the Audio Input Device and Audio
Output Device menus.
Set Buffer Size to 128.
Close the Preferences window after making settings.
Core Audio Applications Guide

Duet – User’s Guide
36 Troubleshooting
Duet – User’s Guide
37
Owner's Record
Features & Specications
Two channels of professional-quality 24-bit/96kHz audio input and output•
Two balanced XLR inputs, with selectable 48V phantom power on each input•
Maximum input - +4 dBu setting: 20 dBu; -10 dBV setting: +8 dBV•
Mic Pre-amp gain: 10 to 75 dB•
Two unbalanced high impedance instrument inputs•
One high-level stereo headphone output•
Two unbalanced -10 dBV line outputs for powered speakers•
Multi-function controller knob for volume and input gain control and assignable MIDI control•
Multi-segment LED meters to display input or output levels•
FireWire 400, compatible with Mac OS X Core Audio•
Integration and control with Apple’s GarageBand, Logic Pro, Logic Express•
and Final Cut Studio (Soundtrack Pro)
Compatible with any Core Audio-compliant audio application•
Apogee’s Maestro software for advanced control and low latency mixing•
System Requirements
Computer: Mac G4 1GHz or faster, PPC or Intel CPU
Memory: 1 GB RAM minimum, 2 GB recommended
OS X : 10.4.11 or greater must be installed, 10.5.3 or greater highly recommended.
Connection: FireWire 400 port
Using Duet with MOTU Digital Performer
ChooseSetup>CongureAudioSystem>Congure
Hardware Driver
IntheCongureHardwareDriverwindow,select
CoreAudio in the topmost menu.
Select Duet in the device list.
Set Buffer Size to 128.
Set Host Buffer Multiplier to 1.
Set Work Priority to Low.
Click OK.
Using Duet with Steinberg Nuendo
Choose Devices > Device Setup
In the Devices window, click on VST Audio System.
Select Duet in the ASIO menu.
Once Duet is recognized by Nuendo, select Duet in
the Devices window.
Click on Control Panel.
In the ASIO Settings pop-up, set Buffer Size to 128
and click OK.
In the Device Setup window, click OK.
Core Audio Applications Guide