i'm currently running four cerwin vega 84 series. They're the 8" Vega series subs. 250rms each and 500max. I got a super small box at 1.6cuft total for all four, ported to 40hz and it sounds decent. Gets loud, and goes pretty low for 8"s So far no one guessed the size of the woofer yet which is always fun. They sound a lot more musical then i would have imagined and sounds better then bbpro6 graphs said it would. I have two dual 4 and two single 4. Basically running about 1.5ohms and powered by my PR1.1000
I'll get pictures soon as it stops raining all hours of the day. Gotta love California weather!