Tube amps vs solid state for large speakers

I don't know your speakers but with tube power the key is what db efficiency rating and what nominal impedance...if the speakers are less than 8 ohm and 90 db then tube amping will become somewhat problematic...what are the speakers specs? Shadorne's suggestion to bi-amp is a possiblity but are the speakers biwireable and it will be hard to bi-amp for your budget.
Larry