"Better" is a subjective word.
Will this equipment with this speaker sound better than that equipment with that speaker is a question that can only be decided by a single individual.
Tube amps are reknownend for adding some colour to the music so it really depends whether you are searching for neutral clarity or a coloured, possibly more robust sound (for lack of a better word).
Just offhand it sounds like you already have a very capable receiver, so i would suggest to start with what you have, then sometime down the road begin to bring home other components to audition and compare. Then you can decide for yourself whether you like the tube amps over SS or not.
