It took me a while to find my kind of rig - and 'hi-fi', 'light, powerful and compact' ain't it. I play 60s and early 70s kind of rock with some Motown soul thrown in, and it's not just about being loud - it's about having presence and beef even at low volume. I don't think you can get that with 4x10s, 4x12s, 1x15s, or any combination of the above, and still have a decent tone. I couldn't do it, anyway, not with Eden or GK or Crate or Laney.
I now play old school Acoustic and it fits like a glove. Started out with a 456 (450 head and 406 2x15 cab paired) and it's plenty loud for most situations, but I played an outdoor gig without PA support and didn't have enough juice for even a medium-sized backyard. I mean, I could be heard, but I want to be heard by bowels as well as ears - that's what bass is about. So I got a 271 stack in addition - some 300 watts into a folded-horn 18" cab - and now my rig is complete. And aside from the volume issue, the tone is sweet.
I'm in my mid-20s and Acoustic gear is really not that hard to move. The downside is the amount of space it takes when transporting, but the drum set usually gets a truck bed anyway so that issue is nullified.