I would suggest 2 500rms amps.
I paid $300 for 1 500 rms amp, so you are going to have to spend a pretty good penny to power these subs.
(don't try to bargain with price, it will do you no good except get you terrible quality.) EX: Pyramid amps or sony xplod don't do it!
may i suggest a kenwood amp 500rms, go to bestbuy.com and type in kenwood amp, the one for $299 is the one that produces 500rms.
KICKER S10L7 10" L7 CAR AUDIO SUB 600 WATTS DUAL 2 OHM, NEW KICKER DS12C DUAL 12" SUB BOX W/ S12C SOLO CLASSIC (09DS12C2), Kicker 10CVX154 (10CVX15-4) 2000W 15" Dual 4 ohm CompVX Car Subwoofer/Sub Woofer, Kicker 10CVX124 (10CVX12-4) 1500W 12" Dual 4 ohm CompVX Car Subwoofer/Sub Woofer, 2 Kicker S15L3-4 11S15L3-4 15" L3 Subwoofers+Atrend Dual Sealed Sub Enclosure, 2 Kicker S15L3-4 11S15L3-4 15" L3 Subwoofers+Atrend Dual Vented Sub Enclosure, Kicker S15L3-4 15" 1000 Watt Solo Baric L3 Car Subwoofer Dual 4 Ohm Sub 11S15L34, Kicker 07CVR154 (07CVR-154) 15" Dual 4 ohm CompVR Car Subwoofer/Sub Woofer, KICKER S10L7 10" L7 SOLO BARIC CAR AUDIO SUBWOOFER SUB DUAL 2 OHM S10L72, KICKER Dual Car Audio Subwoofer Sub CVR10, KICKER DUAL 15" S15L5 L5 SUB BOX AMP ZX1500.1 AMPLIFIER, 2 Kicker 10CVX124 (10CVX12-4) 12" Dual 4 ohm CompVX Car Subwoofers/Sub Woofers, KICKER DS12L7 CAR AUDIO LOADED DUAL L7 12" SUB BOX NEW, Kicker Solo-Baric L3-11S12L34 12" sub with dual 4-ohm, KICKER CAR AUDIO DUAL 15" POWERED REAR FIRE SEALED C15 SUB BOX DX500.1 AMP, KICKER CAR AUDIO DUAL 15" LOADED VENTED C15 SUB BOX ENCLOSURE DX500.1 AMPLIFIER, KICKER CAR AUDIO DUAL 15" RHINO LINED VENTED C15 SUB BOX DX500.1 PACKAGE, KICKER CAR AUDIO DUAL 15" SEALED SUB BOX C15 ENCLOSURE DX500.1 AMP PACKAGE, KICKER CAR AUDIO DUAL 15" RHINO LINED VENTED C15 SUB BOX DX500.1 AMP AMPLIFIER, KICKER CAR AUDIO DUAL 15" POWERED SEALED SUB BOX ENCLOSURE DX500.1 C15 SUBWOOFER, KICKER CAR AUDIO DUAL 15" LOADED C15 SEALED SUB BOX DX500.1 AMPLIFIER AMP, 2) Kicker 10CVX102 10" Dual 2 ohm ComVX Subwoofers/Sub Woofers (2400W Pair), KICKER 15" L7 SERIES 1000W RMS COMPONENT DUAL 4 OHM SOLO BARIC CAR SUBWOOFER , KICKER 11S15L74 2000W MAX 15" DUAL VOICE COIL SOLO BARIC CAR STEREO SUBWOOFER, 2SVK 15" BK New Dual Slot Vented Kicker L5 L7 Sub Woofer Enclosure Speaker Box , KICKER L7 SERIES 12" 1500W MAX DUAL 2 OHM COMPONENT SOLO BARIC STEREO SUBWOOFER, 2) Kicker 11S12L32 12" Dual 2 ohm Solo-Baric L3 Car Subwoofers/Subs (1600W Pair), Kicker 11S12L32 (11S12L3-2) 800W 12" Dual 2 ohm Solo-Baric L3 Car Subwoofer/Sub, 2) KICKER CVR12 COMPVR 12" 1600W Car Audio Subwoofers + Dual 12" Vented Sub Box, 2) KICKER CVR12 COMPVR 12" 1600W Car Audio Subwoofers + Dual 12" Sealed Sub Box, 2) KICKER CVR12 COMPVR 12" 4-Ohm 1600W Car Subwoofers + Dual 12" Sealed Sub Box, dual 12" kicker comp subs in single ported carpet box 750w pioneer amp , 2) KICKER CVR124 COMPVR 12" 1600W Car Audio Subwoofers + Dual 12" Vented Sub Box, KICKER 200W RMS 12" DUAL SEALED ENCLOSURE BASS SUBWOOFERW/ BUILD IN AMPLIFIER, KICKER 15" 1000W RMS DUAL 4-OHMS SOLO-BARIC L7 SERIES CAR STEREO BASS SUBWOOFER, KICKER S15L74 15" 2000W MAX DUAL 4-OHMS SOLO-BARIC L7 SERIES CAR AUDIO SUBWOOFER, Kicker DC104 (10DC104) Dual 10" Competition Comp Loaded Subwoofer/Sub Enclosure, Kicker 10DCVR104 Dual 10" Ported Comp VR Loaded Subwoofer/Sub Enclosure/Box, 2) KICKER CVR12 COMPVR 12" 4-Ohm 1600W Car Subwoofers + Dual 12" Sealed Sub Box, Kicker 08S8L74 (08S8L7-4) 900W 8" Dual 4 ohm Solo-Baric L7 Subwoofer/Sub, 2) KICKER CVR124 COMPVR 12" 1600W Car Audio Subwoofers + Dual 12" Vented Sub Box, 2) KICKER CVR12 COMPVR 12" 1600W Car Audio Subwoofers + Dual 12" Sealed Sub Box, 2) KICKER CVR12 COMPVR 12" 1600W Car Audio Subwoofers + Dual 12" Vented Sub Box, KICKER C15 15" CAR AUDIO SUBWOOFER COMP DUAL 4 OHM 250W STEREO SUB C15D4 NEW, KICKER DUAL 15" POWERED C15 SUB SUBWOOFER COMP BOX NEW, KICKER C12 12" CAR AUDIO STEREO COMP SUB DUAL 4 OHM SUBWOOFER 150W C12D4 NEW, KICKER CAR STEREO 8" SUB DUAL 2 OHM S8C SUBWOOFER & DX500.1 AMP INSTALL WIRE KIT, Kicker 10CVR124 (10CVR12-4) 800W 12" Dual 4 ohm CompVR CVR Car Subwoofer/Sub, KICKER 10CVR104 10" 800W MAX COMPONENT DUAL VOICE COIL CAR AUDIO LOUD SUB WOOFER, 2) Kicker 11S12L72 (11S12L7-2) 12" Dual 2 ohm Solo-Baric L7 Subwoofers/Subs,