amp for cm3 15d4?

[diceman1000]

can you guys suggest a good amp for this sub...i need 600-800 wrms@2ohms,my first thought was a jbl bp600.1,but i can't find one...this is for a friends kid that is in highschool,all of his buddies are telling him that he needs to buy audiobahn subs and a kenwood amp,i told him the're full of shit,and that he can do alot better ,he already has a diamond cm3 15 d4 in a q logic ported box...he also has two rf punch hx 12's,and a rf power 7505(i think) amp that he bought at an auction for $45...i told him to run tha 12's or the 15 and stay away from that other shit...he already has a coustic 401bd on the diamond,but it's not quite enough
Damon
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