I am in need of a gigging rig capable of playing small to medium venues basically, but I do not have great deals of money to spend. I have been using A Behringer Ultrabass BX4500H at the studios I practise at and for the price I think they sound fantastic, so that's my head sorted. I was thinking of getting a Hartke Hydrive 4x10 cab, however the cab is rated 1000 watts at 8 ohms, and the amp 450 at 4 ohms. My understanding is that because of the resistance from the cab, the output is gonna be somewhat less than the 450 watts of the behringer head. My questions is, would the output of these two be loud enough for what I require?