I'm currently using an Ampeg SVT7-Pro with my Berg NV610t. I'm wondering what heads play well with this cab. Am I leaving anything on the table using a midrange head with what I consider a high end cab? I'm fairly happy with the tone from the Ampeg but I've read that they are underpowered and we all know about the reliability issues. I'm playing a P with flats and a Jazz with rounds in a loud rock cover band. I'd love to run an all tube head with the cab, maybe a SVT CL or Fender Super Bassman. The weight and cost are concerning but I won't rule them out. I've also got the Subway amp and cabs for home use and smaller gigs, although haven't played out with this set up yet. I've used the Subway head with the NV610 at rehearsal and was underwhelmed by the combination. It sounds great with the Subway cabs though. Any suggestions on what amp to pair with the Berg for best results?