A high-output passive 2-way surface-mount speaker for the toughest install jobs. The SL4240 delivers concert-grade headroom in an architecturally discreet enclosure — perfect for larger restaurants, retail halls and houses of worship that need authority without bulk. BEHRINGER built it for integrators who refuse to compromise: heavy-duty drivers, protected crossover, and rugged mounting points engineered for years of duty. Now obsolete — see our current install range for the successor.