I'm thinking about buying two of them. One for small gigs/practice and two for larger gigs. The 5.3 ohm impedance scares me a little, since basically these two cabs would be the end, wouldn't they? I mean you couldn't really add another cab without dropping below 2 ohms total. I guess you could add an 8 ohm into the mix but then it seems you'd have balance problems. Thanks.