Hey all, this is my first post here....gotta couple Q's about my rig. First, I'm currently running a Mesa 400+ through an Ampeg 8x10. I play MM basses tuned 2 steps down (to C) and sometimes a 5 string tuned GCGCF and it sounds great, nice and punchy with a hint of grit. I've been playing this setup for almost a year and am EXTREMELY happy with my tone. But recently, I've been craving a little more fundamental from my rig, some more thump so you can FEEL my bass too. The ten inch speakers just don't seem like they can take the super low frequencies, especially w/ the 5'er. My old setup was an old Sunn head through a Peavey 4x10 with a no-name 1x15, and I felt that the 15 really helped round out my sound. So my question is, would adding some 15s be the way to go? Maybe an 18? I've been eyeing the Ampeg SVT-215e because it matches my 810e, but I can't find much info about them (and it looks like Ampeg has the wrong specs on their site, as they are the same as the 810e) . Opinions? OR would adding something like a BBE or an Aphex 204 clean up the low end enough? Just some ideas, any help would be greatly appreciated. Thanks in advance guys!!!