Input channels
Reference Manual
26
Making HA (Head Amp) settings
You can make HA (Head Amp) related settings (phantom power on/off, gain, phase) for the
input channel.
• To adjust only the HA analog gain, use the [TOUCH AND TURN] knob.
Setting the gain
Head amp settings are made in the GAIN/PATCH window.
NOTE
• The PAD will be switched on or off internally when the HA gain is adjusted b17 dB and
+18 dB.
• Keep in mind that noise may be generated when using phantom power if there is a difference
between the Hot and Cold output impedance of an external device connected to the INPUT jack.
• The GAIN knob, +48V button, and Ø button are valid only on channels for which the assigned
input port is an INPUT jack on the I/O device, the INPUT jack on the QL unit, or a slot that is
connected to an external head amp device (e.g., Yamaha AD8HR or SB168-ES).
GAIN/PATCH window (1ch)
1
Channel icon/Channel number/Channel name indicator
Indicates the channel icon, number, and name.
2
HA section
Appears if the head amp is patched to the input channel.
NOTE
• If a slot is patched to the channel, the type of the slot/MY card and the slot meter will be displayed.
• If a rack is patched, the type of rack and type of effect will be displayed.
• +48V button
Switches head amp phantom power (+48V) on or off.
• A.GAIN (analog gain) knob
Indicates the analog gain of the head amp. You can use the [TOUCH
AND TURN] knob to adjust the gain. If the Gain Compensation function
is turned on, an indicator will appear, showing the position of the
analog gain when the function is turned on.
• HA meter
Displays the level of the HA input signal.
• GC (Gain Compensation) ON/OFF button
Turns the Gain Compensation (gain correction function) on or off. If the Gain
Compensation function is turned on, the level of the signal output from the I/O device
to the audio network will be stabilized. For example, if the FOH console and the
monitoring console are sharing an I/O device, or if you are performing digital recording
via Dante connections, using this function will maintain the signal output at a constant
level from the I/O device to the network even if the analog gain value on the I/O device
is changed. If the Gain Compensation function is turned off, the analog gain and digital
gain will return to the level that was obtained when you turned on the function.
Therefore, the signal level on the digital network will remain the same.
• Gain compensation meter
Indicates the level of the signal output to the audio network after gain compensation.
STEP
1.
Press the Bank Select keys in the Fader Bank section and the [SEL] keys on the top
panel to select the channel.
2.
Press the GAIN knob in the GAIN/PATCH field in the SELECTED CHANNEL VIEW
screen.
3.
Press the 1ch or 8ch tab in the GAIN/PATCH window.
4.
Make settings for the head amp.
SELECTED CHANNEL VIEW screen
GAIN/PATCH window (1ch)
0
1
9
3
2
5
4
6
8
7
