I'm not sure if this is the right forum for this, but here goes! I am considering adding a cabinet to my Ampeg PF-500/SVT 410 HLF rig. The cabinet is rated at 4 ohms. Question I have is what would be the best choice of impedance and how would it be wired? I'm looking at a 15" Eminence in an Ampeg cabinet. Eminence has several choices, impedance wise. If I just 'daisy chain' two 4 ohm cab's will that blow up the amp? Obviously, I am really bad when it comes to calculating this - not a tech geek by any means! Any guidance would be helpful - thanks in advance!