all products are imperfect. thus, they have some consistent characteristic which can be identified after some duration of audition. if products sound different i, it may not be meaningful to generalize about coloration attributable to tube designs.
i find many in-production tube amps unbalanced in frequency response and overly detailed. there is often too much treble energy. i find this is the case with solid state amps as well. the trend in the design of electronic components is to provide more and more detail, less noise and hence a more unflattering presentation of less-than-ideally recorded music. this is unfortunate, but unless one wants to purchase components, especially tube gear from the 80's and 90's, one may ride the carousel of dissatisfaction and frustration.
i find many in-production tube amps unbalanced in frequency response and overly detailed. there is often too much treble energy. i find this is the case with solid state amps as well. the trend in the design of electronic components is to provide more and more detail, less noise and hence a more unflattering presentation of less-than-ideally recorded music. this is unfortunate, but unless one wants to purchase components, especially tube gear from the 80's and 90's, one may ride the carousel of dissatisfaction and frustration.