to set up my new paradigm pw2200 i am going to get an spl meter. My MS908's have passive sub at the bottom and they go fairly lo, What i intend to do is use the spl meter to see how low they do go, then set the sub's cross over to that amount. Is this the best way to do this or could i have an overlap to strenthen the bass thats already there. Is there an easy way to check if your subs in phaze with the fronts. and changing the subs output via the test tone on the amp just increses the output level is this correct. what use is it. should i use it. Oh i can't ajust the crossover from my amp and i like the fronts set to large as i like to get full us of them.