Well maybe Rich has a very good idea about
combining the 410 and 215 cabs; you will certainly
not be asking for more of anything if you do!
I have two of the 410 cabs and am very satisfied.
In fact, I have only hooked up both cabs once so
far. It was so deep and full, I am STILL satisfied,
and that was over a month ago. Well, I am waiting
to play in a larger room. My band practices in a
garage, and one of the 410 cabs is sufficient. In
fact, I have not been able to get the master volume
past "3", it is so loud, full, and deep. The drummer
in partuiclar is impressed, everyone just feels
my bass (a passive dual humbucker T-Bird) in their
chest. Plus, when you stack the two cabs together,
it is so TALL, I am 5'11', and I am still looking
up at the controls. It is really awesome. Your
bass player cannot go wrong with either setup. It
is just a matter of taste as to which cabs to get.
Sunn rocks!