Please provide some feedback on which subs sound good with the SDA-1As. My combo is in my signature. I love the sound of my SDAs and am not ready to get rid of them. I only want to get a sub for movies and don't want the sub to become overpowering when I listen to music. Any tips on how to hook up the sub and what crossover settings work best would be appreciated. I do not have the interconnect cable installed. I also do not have a center channel speaker installed. Thanks.