AudioControl 960 961, Installer'S Manual

Page: 10 / 36

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6
PFM Highpass Filter – This bass blocking filter
sets the low frequency cut-off point of the Archi-
tect. The PFM filter is 18dB per octave and the
frequency is fixed at 40Hz. When this button is
Out (defeated) the channel passes full range to the
zone.
Bus Select Switches – These two buttons next to
each zones local input jacks selects the input
source for that amplifier zone. If both buttons are
Out, the zone receives signal from the Local Input.
If the Top #1 Bus button is pressed, the zone
source is Bus Input #1. When Both Bus #1 and
Bus #2 buttons are depressed, the zone source is
Input Bus #2. Whenever a Bus Input is selected,
the zone input can be remotely triggered to the
local input using the 12 volt Local Trigger input
(see #6 on previous page).
Local Inputs - These unbalanced RCA inputs
connect to your preamplifier’s outputs. Any
standard line level audio signal can be connected to
these inputs.
AC Power Fuses - The Architect is designed with
several layers of protection circuitry. These main
AC power fuses are here just in case something
really awful goes wrong. There are no internal
fuses in this amp.
Power Cord The Architect™ draws a maximum
of 1600 watts at full power. Make certain that it is
plugged directly into the wall outlet or a power
strip with sufficient power rating. Since the Archi-
tect has remote power switching, you should plug
the unit into an AC outlet that is always active.
Master Power Switch - This switch shuts off the
main AC power. Normally the only time you need to
turn the master power switch off is if the system is
going to be shut down for an extended period of time.
Remote Power Control - This three pin connector
allows you to remotely turn on the Architect. You
can either use a contact closure between the
Trigger
In and the +12V output or an external 12 volt trigger
between the Control In and Ground terminals. The
+12 volt output is not designed to power other pieces
of equipment.
Ground Lift Switch – This switch selects the level
of isolation between the audio signal ground and
your AC earth ground. In normal operation this
switch should be in the
Ground position, but if you
run into trouble with an AC ground hum, try the
other two settings for the best operation. For your
safety, the chassis is always connected to the earth
ground regardless of the switch setting.