So my band has been offered a 2 month tour, opening for a pretty big band, playing some pretty large shows. I currently have an Ampeg 410HE. Since it's 8 ohms and kind of low, my band is suggesting I get a bigger cab. My cab is pretty beat up too, so adding another 410 won't be a sustainable option for me. I went to my local music store and I'm trying to decide between the following: Ampeg SVT810 Bergentino NV 610 (2) Gk 410 mbe cabs, making it an 810. It seems the Berg is the most solid and best sounding cab, but I'm looking for volume over tone at the moment. Would the Ampeg 810 or GK rig be much louder than the NV610? It's difficult. Since the SVT 810 is so common (almost every touring band I've seen uses one), I feel I should do the same. Any advice for the most volume?