I've had some very good solid state amps- Luxman 550 and 590, Coda, McIntosh, etc, and I keep gravitating back to tubes. Consider either a subs, or a pair of subs, or like someone above said, getting another amp for when the mood strikes to rattle out the mailman dentures with you bass.
What are the speakers you are using?
I don't know, but if you are new to the sport you might have to buy and sell or dmo to find the sound that best suits you. Many have "wasted" lots of time and money doing that!
Good luck!

