I ordered a Sundown Audio SA12 D2 and I have a RF 500w amp at 2 ohm. So I have a 2 ohm sub and a 2 ohm amp. Can I wore the 2 ohm sub to the 2 ohm amp? I know you can wire 2 ohm to 1 ohm or 4 ohm but I want to upgrade to 1 ohm amp in future for this sub but don't have the money right now. Thanks.