Hey guys, so I feel like I'm pretty good in terms of my instrument knowledge (comes with the job!), but I've been in a cab frenzy for the past year trying to learn what does what and I just wanna have a better idea of what the audience is hearing when we play without having to experiment with a million different combinations. I have the following cabs and I like all of them for different reasons. I want to narrow down my 'collection' to things that are practical for live use. Henry the 8x8 Ashdown MAG 810 Ampeg SVT 810 E Mesa RoadReady 215 SWR Big Ben 118 After having em for more than a week, I finally got to use the 8x8 and Big Ben at rehearsal last night. The Big Ben sounds STELLAR (gives my tone a nice woody-70s vibe that I dig), but doesn't have the output I need to use by itself and I think it would be cool to use more than one of 'em. The 8x8 was shockingly loud (and more modern sounding, which I also dig) and I could probably use that live with no issues volume-wise, but I worry about people at the back of the room missing the THUMP. The 810s are the handy standbys and the 215 is getting used with my other band and I LOVE it. What I think I understand is that the larger drivers are more directional - so while they might sound really fantastic when you're directly in front of 'em, they lose certain frequencies at different angles/distances. Is that the gist? Why does that happen and what relationship does that have the the size of the speaker? I'm thinking of having a few rigs for different situations - for instance, it might be cool visually, if cumbersome, to rock four 18s (two on each side of the stage) or two 215s (again, one on each side) if I know I have a relatively big stage to work with, but will it sound like crap? Something I've avoided since my younger 410/115 days is mixing driver/cab sizes since most 15s that will get pairs with a 410 just can't keep up, but is there a way to do this that makes sense (splitting them up on stage, using specific drivers in each cab)? Biamping is something I've considered, but never tried. One of the things I love about acquiring different/new-to-me gear is how complex a rig really is. For instance, my Pigtronix PolySaturator through my Meat Smoke and either of the 810s ROARS. I put the same pedal with the same settings through my Tiny Terror through the 215 the other night and the low end/low mids just dropped right out of my tone in a really crazy/stark way. It's not quite so simple as 'bigger speakers have more low end' or 'more speakers is louder' although those are great starting points for building a rig you think you'll like. I guess I'm setting this thread up as a conversation on the theories of driver size... sorry for the ranting/long post, I'm only trying to learn! Thank you for your input!