Anthem M1 - Manual (Page 12)

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2. CONNECTIONS AND OPERATION
2.1 INPUT CONNECTIONS
Balanced XLR connection offers the highest transmission quality, particularly over long cable lengths, because it rejects noise and hum pickup. If
using the XLR input, set the input switch to the 0 dB position if your preamplifier’s XLR outputs are at normal line level, or to the -6 dB position if
your preamplifier’s XLR outputs are at 2x line level. If your preamplifier does not have XLR outputs, use the RCA inputs.
Do not use “RCA-compatible” connectors that have a hollow center pin with a hole at its tip. They can damage the amplifier’s RCA jack
internally while being inserted.
2.2 SPEAKER CONNECTIONS
Depending on the level of the input signal, the voltage at the outputs can be high enough to cause electric shock – be sure that power
is turned off when connecting or disconnecting anything. As well, be sure that the speakers are rated for use with this amplifier – an
overdriven speaker can pose a fire hazard.
Connect the red (+) connection on the speaker to the red (+) binding post on the amplifier, and the black (–) connection on the speaker to the black
(–) binding post on the amplifier using cable that is insulated to handle the maximum output of the amplifier. Do not overtighten the binding posts
as this may cause damage. The binding post pair accepts a connection from one speaker.
Both output terminals are active. The black (–) terminal is not grounded. Neither terminal should be connected to a chassis or ground.