Compact Black EVID™ 4.2 delivers very full-range sound from its dual 4-inch LF drivers & a 1-inch titanium tweeter w/wave-guide. It is able to deliver a 110-dB soundlevel over a wide coverage area. The EVID™ 4.2t includes a multi-tap transformer for 70V or 100V line distribution systems. Two-way full range Vented LF enclosure 1" voice coil (titanium diaphragm) w/Neodymium magnetic structure HF section features Coherent Coverage Waveguide™ to minimize interference Full bandwidth overload protection for HF & LF Three-dimensional ellipse (for compact look) Magnetically shielded for video applications Comes w/Strong Arm Mount (SAM™) & a hex-key Suspension insert for SAM™, safety point on rear side