a have way too much guitar valve amps, but I don’t want to use valve amps for a bass. it’s just too heavy, too bulky, too expensive, and it does not sound better than modern modeling amps IMHO, at least for what I ask to an amp.
a tube preamp can still be fine if needed/wanted, but I absolutly don’t see the point of tube power amps for a bass.
just my 2 cents 