Just received this amp but not plugged it in yet. Just wondering whether this model has built in crossover or not? Assuming it high passes amd low passes at the same frequency? If so do you know what frequency it is set at? (i assume its not adjustable as there is no reference to it in the manual. And do you know what the level or slope the crossover cuts at ie 6/12/18/24db cut etc? Ill be running it with an optical link from the DVD player and CD player if this makes any difference and using the kenwoods internal decoders for 5.1 with a sub out to external amp. Thanks, Jamie.