User`s guide

1. Device Icon & ID Button (Mac only) - A device
icon and ID button is placed adjacent to each row
of parameters to identify the hardware unit to
which the row belongs. By clicking on the ID
button, the corresponding hardware unitʼs front
panel will illuminate. Each hardware unit is
assigned a Peripheral Prefix which
is displayed on the ID button.
2. Analog Output Meter - This meter displays the
level of the analog output before D/A conversion,
in the range -48 to 0 dBFS.
3. Speaker Out Selection - This menu selects the
output source that is sent to the speaker outputs.
4. Speaker Out Level - This knob controls the
speaker output level.
5. Headphone Out Selection - This menu selects
the output source that is sent to the headphone
outputs.
6. Headphone Level - This knob controls the output
level of the front panel HP 1 output.
7. Dim - Engage dim if you want to lower the output
level by 15 dB. This function is convenient when
you want to briefly lower the playback volume in
the speakers or headphones in order to hold a
conversation without completely muting the
output. Duet's top panel touch buttons may be
set to engage Dim on the Speaker outputs, the
headphone outputs or both at the same time. See
Device Settings Tab Window.
8. Sum to Mono - Engage this to sum the left and
right channels of the output to mono. At many
points of the production process, this function is
useful to check mono compatibility. For example,
when recording with a stereo pair of mics, it's
always a good idea to sum both channels to
mono and check for unevenness in the frequency
range caused by phase cancellation and
reinforcement of particular frequencies. If the
sound changes significantly or sounds "hollow"
when summed to mono, this may indicate phase
issues caused by a less than optimal mic
placement. When mixing, it's also a good idea to
check mono compatibility. Beyond questions of
phase, any masking caused by overlapping
frequencies is most easily heard when listening in
mono. Try starting a mix with Sum to Mono
engaged - once you have something that sounds
good, then disengage Sum to Mono and revel at
the beautiful stereo mix you've created! Duet's top
panel touch buttons may be set to engage Sum to
Mono on the Speaker outputs, the headphone
outputs or both at the same time. See Device
Settings Tab Window.
9. Mute - Engage this to mute the output.
Maestro - Apogee Duet User’s Guide
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