Those are killer little speakers, caught my attention big time years ago.
Tubes are definitely the way to go as they will flesh out the spare nature of the panels, but S7horton brings up the reality. They need and like power and that isn't cheap with tubes.
Try to beg or borrow both solid state and tube and throw in both if you can to compare, but I suspect you will see why folks put up serious money for those glowing bottles.
Have Fun.
Tubes are definitely the way to go as they will flesh out the spare nature of the panels, but S7horton brings up the reality. They need and like power and that isn't cheap with tubes.
Try to beg or borrow both solid state and tube and throw in both if you can to compare, but I suspect you will see why folks put up serious money for those glowing bottles.
Have Fun.