What a terrible topic header . . . Lots of Ampeg and possibly some other makes of 8x10's are wired so that only the upper 4 speakers can be used, and the bottom 4 separately. That's desireable to me since I can just use the top 4 and get sound at ear level without blowing a small stage away with all 8 speakers. Lifting around two 4x10's for height is becoming cumbersome to me, so I think I want to try an 8x10 and just roll it in. Keep in mind that this is just mostly for stage monitoring for myself and the other guys, bass always go through a full PA. One 4x10 is fine for most shows but I like it up high, and some large stages I need two 4x10's to cover. So, I figure on getting an 8x10 to tinker with and wire each set of 4 speakers separately. TWO QUESTIONS come to mind: 1. Would it be better to wire JUST ONE SIDE of an 8x10 with four speakers in a vertical array instead of having the top four in a cluster at ear level? Thoughts please. 2. If the cab is ported, will wiring it so that only 4 of the 8 speakers are firing cause port tuning or other issues if they all share the same interior cab space? Example, in the separately wired Ampeg each set of 2x10's is in its own sealed compartment. Not so with a ported 8x10. Thoughts?