Bridge and Parallel Modes
The MXS amplifiers provide a
be used in either a Bridge or Parallel mode. When this switch is
placed in the STEREO position, the MXS amplifier functions as a
true stereo amplifier, where both of the two independent amplifier
channels (Ch A and Ch B) can receive different input signals and produce independent output signals. However, when the switch is placed in the BRIDGE position, the Ch A input signal is routed to
both power amplifiers bridged together, producing a single output signal.
Bridge Mode
INPUT
CHANNEL 1(+) OUTPUT
CHANNEL 2(+) OUTPUT
The illustration on the left shows how this works. In Bridge mode, the polarity (phase) of the Ch B output signal is reversed relative to that of the Ch A output signal. Both channels then process the same input signal, with the speaker load connected so that power is derived from both channels. The effective voltage swing seen by the load is thus doubled, so that the power output is multiplied by more four.
When using the binding post outputs in Bridge mode, be sure to connect your loudspeaker with the red (+) terminal of the Ch A output connected to the positive input of the speaker and the red (+) terminal of the Ch B output connected to the negative input of the speaker. Do not use the black ground
Bridge Wiring
1- 1+
2+ 2-
You can also use an Speakon® connector, 
plugged into the CH A output, wired +1 for the positive input of the speaker and +2 for 
the negative input of the speaker.
+1 +2 Connected
When the rear panel switch is placed in the PARALLEL position, the MXS Series operates in an input parallel mode. In this mode, only the signal present at the Ch A input is used. This signal is then routed to both the Ch A and Ch B power amplifiers, thus producing a dual mono output.
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