I know there's been a lot of stuff posted about Ampeg already, so I'm starting to get a pretty good idea, but I'll ask anyway: Any opinions on the Carvin RL1015 versus an Ampeg SVT3Pro, with probably a SVT410HE or PR410HLF? If it matters, the basses are a Ibanez GRS with jazz pickups and Carvin LB75 fretless with HB bridge humbuckers and coil splitter. Also, if you could recommend a better Ampeg head than the SVT3pro, please feel free. I'll take other suggestions, Eden, Mesa Boogie, etc, but they seem more expensive. Thanks.