get 3 12" mt's with an orion 2500d for each, im pretty sure you will beat him thenIn which ways are u trying to beat him.SPL or SQ. I think it will be kinda hard to beat 2 15"MTs with 3 12's. I dont know tho. I no theres ppl on here that hit 149 or something with 1 10" type R
i highly doubt you will be even able to compare to his install if he does it right (ho alts and everything nessicary)Now he is gettin 2 15MT's with 2 Hifonics 1605's to each sub (4 total).