Hello, I would like to share an experiment I did, to see if it makes sense. I have a Hartke HA5500 amp, which has both tube and solid state preamps. I tried my plywood with K&K Bass Max on both preamps separately and the solid state preamp sounds much better. On the other hand bass guitar sounds much better on tube preamp than solid state preamp. I'm by no means an expert, but as I understand tube emphasizes overtones. Is it because upright bass has so much overtones, it gets too much for the tube so it sounds weird? Do people usually prefer solid state amplification for upright? Or is it just my particular setup/taste?