Kicker 48TCWRT672 Sub 6.75 Inch Thin Profile Subwoofer Loaded Enclosure 300w RMSCOMPRT 6. 75" THIN PROFILE LOADED ENCLOSURE 2 OHM 48TCWRT672 CompRT Subwoofer Enclosures makes it easy to have big bass in a tiny space. The CompRT Thin Profile 6 3 4 Inch Subwoofer Enclosure comes loaded with a Reflex Subwoofer and RT Sub, then carpeted and loaded with a single 2 ohm terminal. Covered in sleek black carpeting and built with stout MDF construction & rounded corners, these tough enclosures take plenty of power, yet fit nearly anywhere.