My son is currently running 2 Pioneer 12s in a 4'cu ft box tuned at 35hz.Goals.....he wants everyone to go "wow".I say....hair trick....but we need more cone area for that.Will there be a big difference from the Pionner subs to either of the sa12s or Skar 12s? Not to be a dick, but the last time I checked pioneer made more then one model. Is that ap1800 amp 1ohm stable? Willing to upgrade electrical? Extra battery at the least Pioneer subs came from Walmart....TS-W303R.....no offense taken.Yes amp is 1 ohm stable.I want to make sure that I am able to run the SA12s or Skars @ 1 ohm to use all available power. I figured we were gonna have to do a extra battery.Will 4 gauge power and ground be enough?