Yeah, it will be pushing it with just 1 alternator, but get a couple good batts, at least 4 heavy ones and you will proably be okay, just try to keep from dipping below 10.5 with the amps going full tilt... if you are half volume and it's dipping into the 11's you are not gonna have enough alt or batt....
SAZ-3000D Refurbished is 1 year warranty and you can get two for $1250 shipped if you don't mind a few scratches, but if you are going to want better cooling for hard daily pounding you should look at the new heatsink models, however that will only run you $1280 for 2 B-stockers... You could get the A-stock (no major scuffs or scratches) with the newer heatsink for $1320 shipped.... Remember that is with a 1 year warranty and we are kinda like Sundown about the warranty here at dB-r, we just shut up and fix it to make you happy, no bickering unless you obviously did something wrong like get them soaked in a rainstorm or spill a bottle of captain morgan in them or something.....