1,500watts,,
sa 12
1500 watts is really pushing it for an sa-12. Can't play it for more than 30 seconds before it starts to stink.
You can do that if you are really smart with the volume knob and feeding it absolutely clean power
Else I'd do a pair of the 8s.
Ive ran about 1860 watts to a sa 12 for about 10 minutes before it started to stink.. but that is true. It has to be clean power for sure but in my opinion i think if you had enough power you could get the 12 louder.. but it depends what your trying to get at. Maybe you would be better off with 2 8's.