PMA AMPLIFIER SERIES
POWER
STANDBY/PROTECT
WARNING: SHOCK HAZARD . DO NOT OPEN. NO USER-SERVICEABLE PARTS INSIDED
ESIGNED AND ASSEMBLED IN HUNTINGT
DSP ACTIVITY
PROGRAM
TRIGGER
USB
ALL INSTALLED CHANNELS MUST BE
PROGRAMMED WITH CORRECT
LOUDSPEAKER PROGRAM BEFORE
OPERATION. FAILURE TO DO SO WILL
RESULT IN LOUDSPEAKER DAMAGE.
PRO AUDIO TECHNOLOGY “PMA
MANAGER” SOFTWARE REQUIED.
-
+
INPUT
LOOP
-
+
SHORT OR 0V :
OPEN OR +12 V:
STANDBY
OPERATE
!
CHANNEL 1
LOOP
INPUT
OUTPU T
+
-
CHANNEL 2
+
-
SIGNAL
CLIP
PROGRAM
LOOP
INPUT
OUTPU T
CHANNEL
LOOP
INPUT
CHANNEL
LOOP
INPUT
ON
DISPLAY BACKLIGHT
SIGNAL
CLIP
PROGRAM
SIGNAL
CLIP
PROGRA
SIGNAL
CLIP
PROGRA
WARNING:
13
HARDWARE FEATURES - REAR PANEL
INPUT/OUTPUT AREA
3.1 - BALANCED ANALOG
AUDIO INPUT
3.3 - CHANNEL STATUS INDICATORS
3.6 - SPEAKER OUTPUTS
3.4 - CHANNEL POWER LABEL
3.2 - LOOPING OUTPUT
3.5 - PROGRAM LABEL LOCATION
3 - INPUT/OUTPUT AREA
3.1 - BALANCED ANALOG AUDIO XLR INPUT
Connect this balanced analog audio input to the post-processed analog audio output from your
surround sound processor. Pin 1 is ground; Pin 2 is ; Pin 3 is signal -.
To minimize the risk
of unwanted ground plane noise, use of a balanced preamplifer is highly recommended.
When connecting to unbalanced (single-ended) audio outputs, connect pins 1 (GND) and 3(-) to-
gether and then to audio GROUND inside the male XLR jack at the amplifier-end of the intercon-
nect cable. Make sure the preamp/processor is grounded. That is, make sure that it has a three-
prong grounding AC power cord. If it does not, you will need to connect the preamp chassis to
ground manually.
Failure to connect to a properly grounded single-ended processor will likely result
in unwanted ground noise that will enter the system and be heard from the loudspeakers
.
3.2 - BALANCED ANALOG AUDIO LOOPING OUTPUT
Use this XLR output to “loop” the analog audio input signal to another PMA chassis. This is useful,
for instance, when there are more than 4 subwoofers within a system and it’s necessary to route
the LFE signal to more than one PMA amplifier.
NOTE: Signal input into one of the XLR balanced audio inputs may be routed to any amplifier
channel
within the same PMA amp
via PMA Manager software (refer to “Amplifer Programming”
section of this manual for more information).
