The Slot Loaded Open Baffle Project - First Watt

No these are slot loaded open baffle speakers that he designed rBudgetAudiophile

If you want low bass in an open baffle, you should read the Slot Loaded Open Baffle article on Nelson Pass's Firstwatt site RE: OB Woofer

slot 4kings I would like to combine the huge interest in Open Baffle speakers with this niche Instead the driver fires out into the room past a carefully positioned slot

slot via pulsa 2 x 10-inch horn-loaded subwoofers driven from plate amps: One per corner six feet behind each main speaker • Separate 20-amp breaker system for the audio room