English
9
4[PEAK] indicators
A [PEAK] indicator lights up red if the input sig-
nal that has passed through the [GAIN] control
(5) reaches a level 3 dB below the clipping
point. In order to record at the optimal level,
adjust the [GAIN] control (5) so that this indi-
cator flickers briefly when you play at your loud-
est level.
5[GAIN] controls
These controls enable you to adjust the input
sensitivity (head amp gain) of INPUT jacks 1, 2,
3, 4, 5/6 and 7/8. (page 16)
Setting range:
Ch 1 & 2
MIC: –16 dBu to –60 dBu
LINE: +10 dBu to –34 dBu
HI-Z,: –12 dBu to –56 dBu
Ch 3–8 +10 dBu to –20 dBu
6MONITOR [1/2 (44k)] - [7/8 (96k)] indi-

cators

When the monitoring channels selected via the
[SELECT] switch (7) output signals, the corre-
sponding [1/2] - [7/8] indicators in the MONI-
TOR section light up red.
When you press and hold down the [SELECT]
switch for one second or longer, the indicator
for the current operating sampling frequency
(44k, 48k, 88k, or 96k) flashes red.
The [44k] indicator represents a sam-
pling frequency of 44.1 kHz, and the
[88k] indicator represents a sampling
frequency of 88.2 kHz.
7MONITOR [SELECT] switch
This switch enables you to select a monitoring
channel that outputs signals from the MASTER
OUT L and R jacks on the rear panel (page 17).
Press the switch briefly (less than one second)
repeatedly to select monitoring channels in the
following sequence:
Off CH1/2 CH3/4 CH5/6 CH7/8
DIGITAL STEREO Off
The MONITOR indicator (6) for the selected
channels lights up.
Also, when you press and hold down this switch
for one second or longer, the MONITOR indica-
tor for the current operating sampling fre-
quency flashes red.
You cannot route a signal input from the
ADAT NORMAL/DOUBLE jack to a
monitoring channel.
The monitoring channel selection is
reset to Off when you turn the power
to the i88X off and then back on.
8[MONITOR VOLUME] control
This control adjusts the signal volume level of
the monitoring channel selected via the
[SELECT] switch (7). The monitoring signal is
output from the OUTPUT/MASTER 1/L and 2/R
jacks and MASTER PHONES jack (page 17).
9MASTER PHONES jack
You can connect a set of stereo headphones to
this stereo phone jack. The signals output from
the OUTPUT/MASTER 1/L and 2/R jacks are also
output from this jack.
0[MASTER VOLUME] control
This control adjusts the level of the signals out-
put from the OUTPUT/MASTER 1/L and 2/R
jacks.
To output mLAN INPUTS audio level
signals from the OUTPUT/MASTER 1/
L and 2/R jacks (G) at line level
(+4 dBu), turn the [MASTER VOL-
UME] control all the way to the right.
The signals will be output at the same
level as those output from the OUT-
PUT 3-8 jacks.
A[OPTICAL SELECT] switch
This switch enables you to select the function of
the OPTICAL IN and OUT jacks on the rear
panel. For more information, refer to “About
the OPTICAL SELECT switch, MASTER CLOCK
indicator, and wordclock master” on page 10.
ADAT DOUBLE:
Select this option for a high sampling rate
(88.2 kHz or 96 kHz). The OPTICAL IN and
OUT jacks function as ADAT IN and OUT jacks
that receive and transmit digital audio signals
of up to four channels at the same time. A sin-
gle optical cable combines eight-channel,
44.1 kHz or 48 kHz digital audio signals into
four-channel, 88.2 kHz or 96 kHz digital audio
signals.
ADAT NORMAL:
Select this option for a normal sampling rate
(44.1 kHz or 48 kHz). The OPTICAL IN and
OUT jacks function as ADAT IN and OUT jacks
that receive and transmit up to eight-channel
digital audio data. This is the standard ADAT
format.
DIGITAL:
The OPTICAL IN and OUT jacks function as a
digital stereo input and output.
If you select DIGITAL, the COAXIAL IN
jack is disabled.
Before you select ADAT DOUBLE,
make sure that your ADAT-compatible
device supports ADAT DOUBLE
mode.
BMASTER CLOCK indicators
These indicators light up to indicate the word-
clock to which the i88X is locking. For more
information, refer to “About the OPTICAL
SELECT switch, MASTER CLOCK indicator, and
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