Wharfedale's Slot Loaded Port Explanation

slot-loaded bass reflex enclosure preamp-level inputs speaker-level inputs with 5-way binding post connectors phase reverse switch auto

Buy JBL PD5122 Dual 12 Slot-Loaded Low-Frequency Passive Loudspeaker featuring Professional Sound Reinforcement, Designed to Extend LF Pattern

slot thailad I've seen several slot loaded subs lately, or at least designs described as slot loaded An example is the 8-inch offering from av123

slot jumanji The Slot Loaded Open Baffle Dipole speaker with 8x woofers in SLOB