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QuickMedia™ 3-Channel Amplifiers Crestron QM-AMP3x80 Series
INPUTS
The AMP3x80 contains three sets of balanced/unbalanced, line-level audio inputs.
On the QM/QMI-AMP3x80MM, two of the inputs are reserved for program audio
and one input is reserved for speech audio. The inputs are labeled to designate
program and speech audio. On the QM/QMI-AMP3x80SR, all of the inputs are
designated for speech audio.
Each input port uses a 3-position mini-terminal block connector for connecting the
audio output of a QM-RMCRX, QM-MD7x2, or other preamp. For wiring
information, refer to “Hardware Hookup” on page 13.
OUTPUTS
The AMP3x80 contains three sets of balanced speaker outputs. The QM/QMI-
AMP3x80MM has two outputs that are reserved for the left and right channels of the
audio program (4/8 ohm impedance) and one output that is reserved for speech audio
distribution (70 V or 100 V output). The outputs are labeled to designate program
and speech audio. On the QM/QMI-AMP3x80SR, all of the outputs are for audio
distribution (70 V or 100 V).
Each output port uses a 2-position terminal block connector for connecting the
appropriate type speaker. For wiring information, refer to “Hardware Hookup” on
page 13.
NET
This 4-position mini-terminal block connector is used to connect the AMP3x80 to the
Cresnet system. Data and network power for the AMP3x80 are provided via the
connection. Refer to “Network Wiring” on page 8 for more information.
5A SLO-BLO 250V (T2.5A 250V on QMI)
This port holds the operating fuse for the AMP3x80. If the fuse is blown, replace
with the type described on the label. On the QM-AMP3x80SR and
QM-AMP3x80MM, the port is labeled 5A SLO-BLO 250V. The port on the
QMI-AMP3x80SR and QMI-AMP3x80MM is labeled T2.5A 250V.
WARNING: Only use the specified type of fuse when replacing a blown fuse.
Failure to do so may cause damage to the amplifier.
120V ~50-60 Hz (230V ~50-60 Hz on QMI)
This IEC-320-C-14 port is used to connect the AMP3x80 to an AC outlet. On the
QM-AMP3x80SR and QM-AMP3x80MM, the port is labeled 120V ~50-60 Hz. The
QMI-AMP3x80SR and QMI-AMP3x80MM are labeled 230V ~50-60 Hz. Use the
supplied power cord to connect to an AC outlet.
6 • QuickMedia™ 3-Channel Amplifiers: QM-AMP3x80 Series Operations Guide – DOC. 6272