kill any small children or animals if anybody opens the door when it is in place! Otherwise, it is looking nice, and coming right along! Keep it up man! -------------------- James "Never interrupt your enemy when he is making a mistake" ~Napoleon Bonaparte~ If you run it through the Presonus CS, the obvious advantage is the ability to bring it in and out of the mix for comparison purposes. The big disadvantage is the lack of a cross-over. (I know you already mentioned both issues, just re-iterating for completeness!). My opinion is that you should not run the system without a crossover. Good filters will work (that is what a crossover is after all), and if you have them built-in to the sub, great. I would however consider having both the mid/highs and the sub on filters... HPF on the mid/highs and LPF on the sub. You will losing a lot of energy if you don't. Maybe you could invest in a nice stereo crossover, and use one side for the sub, and one side for the mid/highs??? Anyway, FWIW, that is what I would do, otherwise, I would use the crossover in the sub. For me personally, I would never just use the CS without some kind of filtering on both sets of speakers. -------------------- James "Never interrupt your enemy when he is making a mistake" ~Napoleon Bonaparte~ Belated thanks for the very thoughtful reply. I've been sidetracked by some problems with my new/used monitors, for which I've started