i have a treo ssi i have in a 1.75 cubic foot net enclosure tuned to about 35hz with 22 inches of port area. i'm just not happy with the SQ of it. should i try sealed? should i try to tune lower? i just don't like how the bass hits. it just sounds boomy and not very tight. i listen to metal with fast double bass and stuff like that and it just doesn't react how i want. any suggestions?