2) ROCKFORD FOSGATE P1S4-12 12" 1000 Watt 4-Ohm Car Audio Subwoofers Subs P1S412 MAX Power Handling: 500 Watts per sub (1000 watts per pair) RMS Power Handling: 250 Watts per sub (500 watts per pair) Linear spider with embedded 16 AWG tinsel leads High-temp voice coil with spun-laced Nomex re-inforcement collar Kevlar fiber reinforced paper cone