I just bought a 6L6 Bogner Shiva head, and I'm trying to make the decision to buy the open or closed 212 cab. I currently have 2 2x12 cabs, Mesa closed with V30's, and a Suhr open back. I'm leaning towards the open back because I'm playing my amps pretty clean these days, and it seems like the open back cabs have better frequency range and clarity. Am I off base?