Excerpt: This amplifier is fantastic, for powering my 18" sub woofers in my P.A. system. Using the 18" sub woofers only for the bass drum with a bass drum microphone. Not using the thru low/high out jacks at all. Just using the channel A & B speakon outputs to the sub woofers. I'm using the 150Hz crossover button, and the 40Hz cut off filter button to prevent low-end rumble. This type of crossover does "sound" more natural than conventional "state-variable" type crossovers.
Pros: Easy To Install, Good audio, Good Low Cut Filter, Good Low End Crossover, Good Power Output, Great Sound, Versatile