A sealed / ported / bandpass / hornloaded/ isobaric combination. I'm just kidding //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif I personally like the perfects in a sealed enclosure. But seriously it all depends on what type music you listen to. So what kind of music do you listen to //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ?