hi! I recently bought an Ampeg SVT 4 Pro. It's a great amp, but it's like something is missing -I think it might be the tube-growl. I don't have much experience with tube amps, so if everyone here can tell me what I get and what I loose by changing, I appreciate that. I'm looking into other cabinets too. Has anyone tried a SVT 4 Pro or a SVT Classic with a Ampeg BSE 410H cabinet? The sound i'm looking for is slightly distorted, defined, motownish, with NO "clicking"! Every comment/suggestion I can get on this is highly appreciated.