Monster Power MPA 2250 Owner's Manual page 21

STEP 1B For Balanced XLR Connections
1. Connect one end of the balanced XLR type interconnects to the Left Rear and Right Rear channel
preamp outputs of your receiver/preamp.
2. Connect the other end of the balanced interconnects to the appropriate channel inputs
on the MPA 2250.
3. Set Input Type Switch towards the Balanced Input for each input.
STEP 2 Bridged Mono / Stereo Switch
1. Set bridged mono / stereo switch to the stereo position.
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