What is the difference between parallel and bridged mono modes?
The “Parallel” setting duplicates the effect of cross-patching the two inputs, using an internal switch to save the hassle of an extra cable. The two input jacks are connected together, so that a signal on either jack now appears in BOTH channels (therefore only a single signal should be connected). Each channel’s Gain control regulates its volume as usual, and separate speakers are connected to each channel as usual. When using this mode, DO NOT combine the output of both channels into a single speaker; this is likely to damage the amp. The Parallel mode is useful when you want to drive several speakers with the same signal, but with two separate volume controls. Bridged Mono mode reverses the polarity of the signal going to Channel B, and matches its gain to Channel A. This makes the voltage between the two red speaker outputs DOUBLE the usual value, which allows several times the normal power to be delivered to a single speaker. This also increases the stress on the amp; this is not
