Instruction Manual for HPA4 with 1.0.X Firmware – REV B Page 15
Basic Features
Input Selection
Use the input selection arrows to scroll
through the enabled inputs. These arrows are
displayed on the HOME screen and are also
available on the REMOTE.
Volume Control
The volume of the headphone and line output
groups can be adjusted independently. The
bar graphs show the current volume settings.
The volume controls are enabled when the
bar graph(s) are highlighted.
Select the OUTPUT GROUP(S)
Press the volume knob or touch the bar
graphs to select the OUTPUT GROUP that
you would like to adjust (headphones, line or
both). If you are using the remote, press the
ON button to toggle between output groups.
Adjust the volume
Rotate the volume knob or use the remote
control to adjust the volume of the selected
output group(s).
Balance Adjust
Press the BAL button on the HOME screen to
change the L/R balance of the headphone
and/or line outputs. These are independently
adjustable.
MUTE Function
The headphone output and line output groups
have separate MUTE buttons on the touch
screen. Each MUTE button is highlighted in
red when the output group is muted.
When MUTE is toggled on, the audio is
immediately muted. When MUTE is toggled
off, the volume will fade back up to the
original level.
The MUTE key on the remote will mute the
selected output group(s).
Tip: Turn the VOLUME up to release MUTE
and return to the prior volume setting.
-20 dB DIM Function
The DIM function reduces the level of the
selected output group(s) by 20 dB. When
DIM is toggled on, the volume fades down by
exactly 20 dB. When DIM is toggled off, the
volume fades back up to the original level.
The volume bar graph will be displayed in
yellow when DIM is on.
Tip: Turn the VOLUME up to release DIM
and return to the prior volume setting.
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