How much does your amp really affect tone? I recently bought a SWR Workingman's 15 Combo and I'm finding the tone I'm getting is really no different from the Carvin 600 watt head and 2x10 cab I was using before. The SWR is a bit brighter but thats about it. I'm convinced there is not a lot of difference between all of the big amp manufacturers. No matter which you go with your probably going to come out with a pretty nice rig. I'm also starting to think the opinion that you need a lot of power to get good bass tone is over stated. This SWR is a 160 watt combo and as a stage monitor it sounds great. I used to have a 50 watt Ampeg combo and that thing sounded incredible with a 5 string even at loud volumns. I guess the real source of tone is in the bass. Why then do we spend so much on amplification?