Thx, ill look at the smaller ports. Yes I'm not expecting this 8in to rattle much just fill in some bass from the 6x8s and 6.25 door speakers (went with lower rms rating given no amp for speakers, think the kenwood 6x8s are 35w rms and pioneer 6.25 are 30 or 40) all on a 4x50w deck. Sounds super...