Instruction Manual for HPA4 with 1.0.X Firmware – REV B Page 30
Advanced Feature Details
PRESET Mode
The PRESET mode sets the output level to a
fixed level. There are separate presets for the
headphone and line outputs. Each input has
two preset buttons. One for the headphone
outputs and one for the line outputs. These
can be set on the VOLUME SETUP screen
which is accessed from the INPUT SETUP
screen.
Auto-On Function
The HPA4 can be programmed to
automatically turn on whenever AC power is
applied. This function allows automation using
switched AC outlets. When AUTO-ON is
enabled, the HPA4 cannot be turned off
without removing AC power.
The AUTO-ON function is programmed on
the POWER screen.
If AUTO-ON is enabled, the power switch will
mute all of the outputs, but will not turn the
unit off. Likewise, the OFF button on the
remote will mute all of the outputs.
Tip: Turn the VOLUME up to release MUTE
and return to the prior volume setting.
Bi-directional 12V Trigger
Benchmark has reinvented the 12 volt trigger
by adding bi-directional signaling. The trigger
connection on the HPA4 can be used as an
input, an output, or both. It is compatible
with any common 12 volt trigger input or
output.
The 12V TRIGGER I/O can be used to turn
other audio components on when the HPA4
turns on. The HPA4 can also turn on and off
in response to other connected components.
The Benchmark bi-directional 12V Trigger is
compatible with virtually all trigger systems.
The 12V TRIGGER I/O can be connected to
the trigger input or output ports on a D/A
converter, power amplifier, or both.
The HPA4 can send a 12 Volt DC trigger
signal to start other components in the
system, or it can wake up in response to an
externally generated trigger signal.
The trigger modes can be set using the
POWER screen.
Auto Trigger Mode
By default, the trigger ports are set to AUTO
TRIGGER mode. In this mode, the HPA4
automatically configures its trigger I/O ports
as inputs (slave) or outputs (master) as
needed. This mode is recommended for most
applications. In AUTO TRIGGER mode, the
HPA4 will always turn other devices on and
off. It will also respond when other devices
force the trigger line high or low.
Master Trigger Mode - (Output Only)
In MASTER TRIGGER mode, the HPA4 will
ignore external inputs to the trigger ports.
The HPA4 will force the trigger ports to 12
volts DC when the unit is ON, and will force
the ports to 0 volts while the unit is turning
OFF.
Slave Trigger Mode - (Input Only)
In SLAVE TRIGGER mode, the HPA4 will not
drive the trigger ports. The ports will be
configured for input only. The HPA4 will turn
on and off in response to the trigger signal
supplied by other system devices.
Typical Trigger Applications
Typical trigger applications:
• HPA4 → Amplifier
• HPA4 → Amplifier → Amplifier
• HPA4 → DAC → Amplifier
To Next Page
Loading...
