1 12" icon or 2 SA Sundown 12s

[Stephen93s10 40]

I have a 98 s10 ext I plan to get a ported box, which would have deeper bass, and be louder. 1 12 icon or 2 SSA 12s?Also not sure of a good amp to buy but want to keep the price under 350$ any suggestions?

[jonbearsmt 919]

 the 2 SA's 12 will be louder then then 1 icon 12 on just cone alone