What would be a good cross-over if I'm running 2 sub amps (revos) and another amp for my front-stage? Will an external cross-over make a noticeable difference? Audio-control is good right?
It may if you are really good with it, if not just use your Amps crossovers. That is all I choose to use, and I am perfectly happy with them. They are just filters, and crossovers essencially. Sometimes they incorporate a time delay system as well. Line drivers provide additional headroom. Generally they are not that important unless you have noise. They help reduce signal to noise ratios...
