I'm going to be purchasing a 5150 head from my local music store and I was going to get an Avatar cabinet to go with it. I was looking at their Dual Vintage 30 2x12 cabinet. It says that the speakers are 16 ohms wired in parallel for an 8 ohm cab. Do I need an 8 ohm cab like they have already? Or do I need to get that changed to 16 ohm cab? Thanks for the help guys.