Parasound
®
ZoneMaster
™
650 Owner’s Manual
Page 13
Selecting Audio Trigger or 12V Trigger by Zone
When the Turn On Options switch is set to
“
Audio/12V By Zone
”
you can then set the three small
12V/Audio switches to select Audio or 12V turn on/off for each zone. For a zone that you wish to turn on
and off by a 12 volt trigger, set that zone
’s switch to the up position labeled “12V.” For a zone you wish to
turn on and off by an audio trigger, set that zone
’s switch to the down position labeled “Audio.”
Turn On Zone by 12V In Triggers
These jacks are labeled “12V In.” A zone will turn on only when an external 9 - 12 volts is
applied to
that zone’s 12V Trigger Input jack. When the external trigger voltage ceases the
zone will immediately turn off.
Turn On Zone by Audio
Trigger
When an audio signal is present at the Left or Right input jacks of an individual zone only that
zone will turn on. After the audio signal ceases the zone will remain on for about 6 minutes
before shutting off. This prevents unintended turn-off during pauses in your music or movies.
Note:
The audio sensing circuit functions the same way whether the zone is
using the Line Input jacks, Bus Input Jacks or the Speaker Level Input.
Audio Trigger Sensitivity:
The audio trigger in the ZoneMaster 650 is not adjustable. It is
calibrated for turn on at a very low volume leveI (an audio signal as low as 2mV). If you need
a Zone to turn on at an even lower volume level, simply turn down both Level control knobs
for that zone
. Start with the level controls at 12 o’clock and see if the volume level is low
enough when the amp turns on.
Whenever either the 12 volt or the Audio Turn On option is selected the
front panel Power button will be disabled so that turn on and off is
determined solely by the 12V trigger voltage from the preamp, receiver or
by an active audio signal.
