In guitar amplification all professionals use tube amps. Are the tubes that important for a professional bass sound? I want to buy amp Fender Bassman 100 or Hartke Kickback 10, and just wanted to know, would I loose much in sound if it's solid state? sorry, I'm a guitarist... (that's why I know so little about bass sound). I had Ibanez SR400 and Fender Rumble 15 amp... I sold them and decided to buy some real gear (american fender jazz or precision bass and some good amp like Bassman 100).