Speaker cabinet construction..

Ports are of use dont toss the babie out with the bath water. But for smaller rooms and close seating. A sealed design will be far less colored and easyer to place. Poor designed loudspeaker cabinets can add much coloration to sound, smearing image since tweeters midrange etc is vibrating on baffle, causes bloom in bass notes since cab walls become a driver, plus reduction in low bass responce. Vibration on cabinets can be controled so vibrations do not cause problems. Seems many loudspeakers go more for WAF then performance and cabinet material choice show this.