While there are no universal absolute rules, a common difference between tube amps and solid state is the manner in which they clip.
Many solid state amps clip harshly. The peaks above max output are flat-topped with a square-wave like edge. This generates a lot of higher order harmonic distortion that sounds harsh, metallic or edgy.
Tube amps generally have softer clipping when over driven. Since this is more pleasant sounding, it gives the impression of more power since you don't hit a brick wall.
Of course, there are a ton of variables to consider. The main ones are how loud you listen and the efficiency of your speakers. While tube amps have a devoted following they are not for everyone. Make sure you can audition an amp in your system before you commit.
Many solid state amps clip harshly. The peaks above max output are flat-topped with a square-wave like edge. This generates a lot of higher order harmonic distortion that sounds harsh, metallic or edgy.
Tube amps generally have softer clipping when over driven. Since this is more pleasant sounding, it gives the impression of more power since you don't hit a brick wall.
Of course, there are a ton of variables to consider. The main ones are how loud you listen and the efficiency of your speakers. While tube amps have a devoted following they are not for everyone. Make sure you can audition an amp in your system before you commit.