I was looking to get 8" or 10" (quantity 2) subs that would compare to my 12" SI Mag. As you know, caraudio is addicting and I'm always looking for new ideas. This happens to be my latest one.

I was thinking 4 Bravox PXW 8" in 2.4cuft @ 33hz, but am not too sure.

Then I was also thinking 2 used SA-8s.

My third idea is two 10s.

Max cuft = 2.7cuft net

Power options = 500 @4ohm, 900 @2ohm, 1200 @1ohm.

Budget = $150

I want to have the same or more SQ/Loudness as my 12" Mag or previous 12" SSA Icon.

Might not be do-able, but would like to hear your guys input!

That's gonna be tough. You want to get more output for half the money. Both subs you mentioned are $300. In that space I'd recommend two sa10's on 1200 watts. But that's double your budget. Maybe one sa12 or Skar vvx12? Or wait for the Skar vvx10 presale, And get two? Probably be closer to $200.