Che'lu said:IMO, the L7's are DVC's, which means either 2-2ohm's or 2-4ohms. Like what rthompson said, there is no difference in sound. It really depends on what your amp recognizes them as. I have a L7 8" 2ohm. I run it parrallel which breaks it down to 1ohm and use a 1ohm stable amp. This is the maximum power for my amp (1ohm), so this is why I do this.
It really depends on your amp and what it can handle. If you post what type of amp you're going to use, we can probably recommend how to hook it up for best performance.