Tube or solid state

Below is the typical form of reproduction of a "square" signal by a very good tube amp, at 100Hz, 1000Hz, and 10KHz, I let you judge the massacre...

@spaceguitarist FWIW there are tube amps that can reproduce those squarewaves and do it properly, on account of having full power response to less than 2 Hz on the bottom end (so no measurable square wave tilt at 20Hz) and response well past 100KHz on the top end.

Just so you know.

i think Tubes are better for Jazz and Classical music like Vaughn Williams string works where you can recreate that ethereal sound you get with a live symphony. for Rock its solid state all the way, so ideally 2 amps are needed.

This might come as a shock for some but its impossible to design amps or preamps to favor a certain genre of music. If the amp is bad on massed strings it will be bad on electric guitars with heavy drums too.