I've been looking to upgrade from my Avatar 212 which is ported. I feel like it's not punchy enough and not tight enough. I have a Peavey VB-2 tube amp and have read how it pairs great with the Berg NV610 which is sealed. An opportunity to buy these locally don't come up too often and so until it does again, I'm wondering what would be a good next step up along the lines of what I'm looking for. An Ampeg sealed 410? Eden 410XLT? Something different? At the same time, I'm second guessing myself in terms of thinking of going to a sealed cabinet because on the really low notes I do want some width. Can you give me some options of some roads I can possibly go down?