Hello guys i'm new here i want to say that i'm sorry because of my bad grammar if there's any ( im not from the us uk or australia ) i'm looking to build a 8x ultimax 18" setup, i dont really know which boxes to get so i'm looking for advice, they are mainly going to be used for home theatre, rap and edm music so in the 19-60hz range. I found some boxes on parts express but they are 4ft sealed are they any good for what i want to use them for? Also space is really not a problem i have a huge room, also any power amp recommendations? I was thinking about just getting one crown xti 6002. Thank you for any and all help in advance.