Yes, current is what drives the loudspeaker, but all things being the same, a tube amplifier rated at say 50-watts will generally sound much louder than a SS amp at 50-watts.
Tube Watts Vs. Soild-State Watts?
I am considering replacing a large solid-state amplifier with a decent sized tube amp, and was wondering what I may be giving up/gaining by making the change? My speakers are quite sensitive, about 98dB. I love the dynamics and bass control the big SS amp provides, but I would like to get more resolution and detail out of my music. I don't play music at loud volumes, but I do enjoy decent listening levels. Any info appreciated.