Thinking about making a change during the summer months hopefully... Got a ED nine.1 amp running the subs.. Due to size constraints, and such, I'm thinking about going 3 maybe 4 Sundown X-6.5's in about roughly 1.35 cu.ft box tuned to 34hz, or 2 Sundown SD2/3 8's box(about the same size) tuned about the same.. Music is a lil bit of everything but I would like the bass to hit.. Going more for loud. Between these 2 what would be your thoughts and or box tuning advice. Go..