MOTU UltraLite User's Guide Page 17

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INSTALLING THE ULTRALITE HARDWARE
17
the input. The independent three-way pad switch
for each input provides zero (down), 18dB
(middle) and 36dB (up) pad settings for the XLR
jack. When combined with the 24dB digital trim,
the full gain range is 60dB. This is the difference
between the minimum (trim at zero + pad at 36dB)
and maximum (trim at 24dB + pad at zero) gain
settings.
Combo jack summary
Use these general guidelines for the 48V phantom
power, pad and trim settings on the two combo
input jacks:
Quarter-inch analog
The quarter-inch analog inputs (3-8) and outputs
(1-8 plus main out) are balanced TRS connectors
that can also accept an unbalanced plug.
The outputs are all referenced to +4dBu.
The reference level for the inputs can be adjusted
over an 18dB range with the same general trim
guidelines as shown earlier for the mic/instrument
inputs. Trims for each input (or input pair) can be
adjusted from the MOTU CueMix Console or the
front panel. To learn how to adjust trim from
CueMix Console, see “Input trim and phase invert”
on page 61. To learn how to adjust trim from the
font panel, see “PAGE on page 37.
Separate main outs
The main outputs operate as an independent pair
(they dont share signal with any other output
pair). In a standard studio configuration, the main
outs are intended for a pair of studio monitors, but
they can also be used as regular outputs for any
purpose. Their reference level is +4dB. Main out
volume is controlled by the MAIN VOL knob on
the front panel, although this knob can be
configured to control other outputs instead.
S/PDIF
If you make a S/PDIF digital audio connection to
another device, be sure to review the digital audio
clocking issues, as explained in “Connecting and
syncing S/PDIF devices on page 21.
The UltraLite on-board mixer also supplies 12dB
of digital trim for the S/PDIF input pair, which can
be adjusted from CueMix Console or the front
panel. To learn how to adjust S/PDIF input trim
from CueMix Console, see “Input trim and phase
invert” on page 61. To learn how to do it from the
font panel, see “PAGE on page 37.
CONNECT MIDI GEAR
Connect your MIDI devices MIDI IN jack to the
UltraLites MIDI OUT jack (Connection A below).
Conversely, connect the MIDI devices MIDI OUT
jack to the UltraLites MIDI IN jack (Connection
B).
Figure 3-2: Connecting a MIDI device to the UltraLite.
Input 48V Pad Trim
Condenser mic On As needed As needed
Dynamic mic Off As needed As needed
Guitar Off n/a As needed
-10dB Line level via TRS Off n/a As needed
-10dB Line level via XLR Off 36dB +12dB
+4dB line level (XLR only) Off 36dB Zero
UltraLite
rear panel
MIDI Device
MIDI
cables
MIDI
IN
MIDI
OUT
MIDI
OUT
MIDI
IN
Connection A
Connection B
!UltraLite Manual/Mac Page 17 Monday, September 12, 2005 6:52 PM
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