So how come Ashdown cabs, which don't have anything obstructing the drivers and ports sound like they have been wrapped up in a duvet?
I'm with Mr Perry on this one. If there is enough of a gap for the ports to breathe (which I would imagine to be the case here), I can't believe it will be a problem. Why has nobody questioned other manufacturers who blatently have covered ports and drivers? And let's face it, if you are on a gig, I would be amazed if you could tell the difference. And if you can tell the difference, you are obviously sitting in your bedroom with a totally ridiculous rig that does nothing but pee off your neighbours - and you've convinced yourself that you can hear a difference when in reality, you can't.