MOTU 828x 28x30 Audio Interface with ThunderTechnology - Manual (Page 44)

F R O N T P A N E L O P E R A T I O N
44
PHONES
From the factory, the PHONES jack (Figure 6-1) is
a discrete output at 44.1/48 kHz, but it can mirror
any other output pair (digital or analog) or serve as
its own independent output. For example, at 88.2/
96 kHz, it defaults to mirroring the XLR main outs.
As the primary phone jack, it has its own dedicated
volume knob.
As explained in the previous section, the LCD
provides detailed feedback as you turn the knob
(Figure 6-4). To view the current setting without
changing it, just push the knob (without turning
it).
If you would like the MAIN VOL phone jack and
the PHONES jack to output the same signal, assign
the PHONES output to mirror the main outs.
METERS AND STATUS LEDS
The meters and LEDs (Figure 6-2) provide
complete status and metering information for all
828x inputs and outputs.
Mic/guitar inputs meters with V-Limit™
compressor
The two ten-segment meters for the mic/guitar
inputs show input levels from -42 to -1 in the first
column of LEDs, plus an additional range in a
second column from zero to +12 dB (plus clip).
Both inputs are equipped with V-Limit™, a
hardware limiter. With the limiter turned off,
signals that hit zero or above will clip (a hard digital
clip). However, with V-Limit turned on, signals can
go as high as +12 dB above zero with no digital
clipping. If the signal then goes above +12 dB, it
will clip, even with V-Limit engaged. In either case,
the clip LED (above +12) will illuminate. For
further information about V-Limit, as well as
another feature called
Soft Clip , see “Overload
protection (mic/guitar inputs only)” on page 77.
Figure 6-2: The 828x front panel meters and LEDs.
S/PDIF
digital
input
meters
Analog output activity LEDs Optical bank and
MIDI I/O activity
Mic/guitar
preamp
inputs with
V-Limit™
Main
out
meters
Sample
rate
Time code
Lock/Tach
S/PDIF
output
activity
LEDs
Analog
input
meters