I'm a total noob when it comes to Marshall amps. I'm checking out these JCM 800 heads. I understand the earlier ones with vertical inputs are the highest build quality. My question is are these heads capable of massive bottom end? I think of them as having a tighter bass, but can you get some ridiculous bottom if you want it? I think I'm a Marshall guy, but don't know it. Is there another Marshall model I should be considering? I play mostly distorted rock, but without a bassist ala White Stripes, so I compensate by adding a lot of low end though every possible means.