I have a 15in massive audio 2ohm sub running 1200 rms 2400 peak sealed, 2 10s ported not sure of specs. My question is I like how it sounds but some music sounds like it misses the mids of what an old set of 12"s used to offer, I listen to a very wide range of music, would I be better off leaving the set up as is? Or would a system of 1 of each sub be a semi good idea? Assuming similar power/brand to each sub and probably sealed boxes on all 3 (10, 12, 15)