Amp for rock/metal with high efficient speakers

Oh, should have mentioned that I would like to not go
above $4K, and that buying used is ok.

Bigjoe - yes, I do need to let 'er rip from time and
time, and I am a bass freak. I've been leaning towards
SS because of good potential syngery with my tubed pre,
and I want speed and solid authority of the 15" woofs
at higher volumes. On the other hand, perhaps I will try a
good tube amp, just to satisfy my curiosity if nothing
else.

I am surprised to hear so many people suggesting beefy
high-powered SS. I was thinking such amps would be overkill
in my setup. Maybe not!

Stevecham - interesting point you raise about the 10"
mids, will have to ask Ty about it.

Thanks for all the responses so far!