Ok I'm running 4 12" subs on a 3k @ .5 but i'm planning to change to 4 SA-12 d2's. I'm wondering if I get more power out of 2 1500's strap @ 1 ohm then I would out of the 3k @ .25?

Is this a strict competition only setup?

I would never run an amplifier under .50 ohms. If you're burping for a couple seconds you can do it, don't be surprised if your amplifier burns up.

I say go with two saz1500 and I hope you have the electrical back them up with. Keep in mind two saz1500 strapped at 1 ohm is just like two amps being ran at 0.5 ohms each

Also as I bet you already know that running any saz amp under 1 ohm voids warranty also running an amp at 0.25 is suicidal lol because at any given time, since sound is dynamic, you can have up to 4x the amount of current running though that amp which isn't a good idea.

Then again on a burp if done right you have nothing to worry about just don't forget to knock on wood first LOL

And make a build log whatever you decide to do

this is for a brup. I run my 3k @ 2ohms daily and wire it at .5 for comp. I have burp it @ .25 A few dozen times when I had my nightshades in. I have the electrical to back up my setup. I seen the 1500's clamped @ 3800. I was doing 2 1500's @ .5 would be alot easier on my equiment then to keep bruping the 3k @ .25. I just don't what setup would pull more current.