Kramer Tavor 8−T 8” 2−way ceiling tile speaker High Performance Powered Ceiling Tile Speaker features a 40-watt built−in class D power amplifier, three inputs, Kevlar(R) woofer, four pivoting titanium tweeters, complete K−overage ESD™ (Equal Sound Dispersion) design for almost 180 degrees of sound dispersion, magnet held grill (with two security screws) for time saving installation, and a 2nd-level cross−over.  Built-in Power Amplifier - 40W RMS, 110W continuous program.