The Impulse speaker systems require a line-level input (pre-amp only signal) from your mixing board. Regulate the volume of the Impulse speakers using their individual level controls on the rear panel of each enclosure.

HTH

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY