QuickMedia™ 3-Channel Amplifiers Crestron QM-AMP3x80 Series
Hardware Connections for the QM-AMP3x80MM (Back of the Unit is Shown)
CRESNET:
TO CONTROL SYSTEM AND
OTHER CRESNET DEVICES
FROM
LINE
VOLTAGE
STEREO OUTPUT:
TO 4/8 OHM
SPEAKERS
AUDIO INPUTS:
FROM AUDIO
SOURCES
SPEECH OUTPUT:
TO LOUDSPEAKER
NOTE: The QMI-AMP3x80MM speech output is rated at 100V.
Hardware Connections for the QM-AMP3x80SR (Back of the Unit is Shown)
CRESNET:
TO CONTROL SYSTEM AND
OTHER CRESNET DEVICES
FROM
LINE
VOLTAGE
OUTPUTS 1-3:
TO DISTRIBUTED
LOUDSPEAKERS
AUDIO INPUTS 1-3:
FROM AUDIO
SOURCES
NOTE: The QMI-AMP3x80SR outputs are rated at 100V.
Connecting Audio Sources
The AMP3x80 can receive balanced or unbalanced audio input signals. Refer to the
following diagrams when connecting balanced and unbalanced sources to the signal
inputs on the AMP3x80.
Wiring for Unbalanced Audio (left) and Balanced Audio (right)
+G-
Signal Ground
Jumper
+G-
Signal + Ground
Signal -
Connecting Speakers to Audio Outputs
Each model in the AMP3x80 series is equipped with three speaker outputs.
The AMP3x80MM uses one of the speaker outputs for a 70V public address speaker,
while the two remaining outputs can be connected to a pair of 4/8 ohm stereo
speakers. On the QMI-AMP3x80MM, the public address speaker output is rated for
use with a 100V public address speaker.
14 • QuickMedia™ 3-Channel Amplifiers: QM-AMP3x80 Series Operations Guide – DOC. 6272