The Martin CDD5W is a 100w 8 ohm two-way passive micro speaker designed for discreet positioning in architectural installations - including bars, museums, foyers, concourses, exhibition centres and HoW. It features a unique, patent-pending 5" (125mm) LF/0.7" (19mm) HF Coaxial Differential Dispersion driver in a rigid ABS moulded enclosure and is supplied with a dedicated omni-directional mounting bracket. Features : ?Ultra-compact, CDD™ passive two-way system ?Coaxial Differential Dispersion™ technology ?Elegant ABS moulded enclosure ?User-rotatable coaxial drive unit ?Vertical and horizontal mounting options ?Screw-free perforated steel grille ?8O nominal impedance ?Discreet mounting accessories ?Black or white standard colour options ?70V/100V line transformer option