It might be the tube amp, as you say, or it might be the speakers. Clayton Shaw had some concern as to how they might work with my Gallo 3.5s given the fact that they do not have conventional dome tweeters, but rather that ''soda can'' CDT tweeter that AG uses. In my case they worked very well.
In any case, no matter what the reason may be, they aren't working for you. Fortunately you can send them back and be reimbursed. Do you think you are going to let them break in first, though?
In any case, no matter what the reason may be, they aren't working for you. Fortunately you can send them back and be reimbursed. Do you think you are going to let them break in first, though?