Which subwoofers should i get?

What subwoofers should i get JL Audio (2)13.5 w7? or (2) Orion 15 HCCA? i want it to sound good and clear and hits hard and that is loud. and tell me what amp i should get subs. if i get the w7 sound i get JL Audio 1000/1 amp? plz help me out like i said i want a good loud hard hitn woofers and plz tell me a good box or if i should make a custum one and tell me what Hz to turn it to and the cubic feet plz help like i said i want a good loud hard hitn woofers