After hearing about all the glory of Avator cabs in terms of power and tone at great cost I think I may be sold. However I am just wondering if a 2x10 is enough to really get the lows on a 5 stringer of if I would really need 12"s or a 15". I would prefer a 2x10 (or maybe I'll buy two) since I'm living in an apartment next year and dragging a huge cabinent up and down all the stairs would get old after a while. I noticed on their website they have different 2x10 models, the more expensive ones having "more low-end frequency." Also any preference on heads that go well with Avatar cabs? How about a GK 400 RB-IV?