Manualshelf

Owner's Manual

ManualsBrandsParasound ManualsAmplifiersZoneMaster 2350 Black Universal 2-Channel Amplifier with Sub Crossover
11121314151617181920
Parasound
®
ZoneMaster
™
2350 Owner’s Manual Page 11
Turn On Options
The setting of the rear panel Turn On Options switch determines how the amplifier turns on and off. Setting
the Turn On Options switch to Audio or 12V disables the 2350’s front panel Power button. There are three
positions for this switch:
Manual: When the Turn On Options switch is set to Manual the Model 2350 is turned
on and off manually only by pressing the Power button on its front panel every
time you want to listen to music.
Audio: When the Turn On Options switch is set to the Audio position, the Model 2350
will be turned on automatically when an audio signal is present at the L or R Input
jacks. After the audio signal ceases the amplifier will remain on for about 10
minutes before shutting itself off. This prevents unintended turn-off during pauses
in your music or movies. The audio sensing circuit functions the same way
whether you use the Line Level Input jacks or the Speaker Level Input.
Audio Trigger Sensitivity: The audio trigger threshold in the ZoneMaster 2350 is not
adjustable. It is calibrated to turn the amp on at a very low volume leveI (an audio
signal as low as 2mV). If you need it to turn on at an extremely low volume level,
simply turn down the Left and Right Level Control knobs. Start with the Level control
knobs at 12 o’clock and check if the volume level is low enough when the amp turns
on.
12V Trigger: When the Turn On Options switch is set to its 12V position, the Model 2350
is turned on and off only with an external +9 V to +12 V DC voltage. When the external
voltage ceases the amp will turn off within a few seconds. The 12V turn on trigger
circuit in the ZoneMaster 2350 requires a mere 5mA from the 12V trigger source.
12V Loop Out Jack
The Trigger Loop Out jack lets you loop or daisy-chain the incoming 12V trigger voltage to an additional
amplifier or other component. When 12V is coming into the 12V Input jack the 12V Loop Out jack is always live,
even if the 2350 is turned on and off manually or with the audio trigger.
Power Button Disabled
Whenever you select 12V or Audio the front panel Power button will be disabled and turn on and turn off is
controlled by the incoming 12V or audio signal from your preamp, AV Receiver or whole-house controller.