C45i0, Ci60 and Ci90 cabinets are full range, two-way bass-reflex
enclosures each fitted with a 12″ LF driver passively crossed over to a 1.4″ HF compression driver coupled to a CD horn with 45° x 45° (Ci45), 65° x 40° (Ci60) or 90° x 40° (Ci90) coverage pattern. The cabinets are designed to allow the horn flares to be rotated through 90° allowing greater flexibility in placement for a given dispersion.

The cabinets are constructed from marine plywood and have an impact resistant paint finish. The front is protected by a rigid metal grill fitted with an acoustically transparent foam. M10 threaded inserts are provided on the top and bottom, and on the sides of each cabinet, for mounting rigging accessories. A recess at the top of the rear panel, which also serves as a handle, is fitted with two Speakon NL4 input connectors.

Ci45/Ci60/Ci90 systems are designed specifically for permanent installation. In the standard, upright operating position the CD horn is positioned below the LF driver so the HF dispersion is less likely to be influenced by reflections from walls, ceilings or other equipment mounted nearby. This arrangement improves the headroom before feedback when systems are flown above the stage.

The frequency response of the systems extends from 18 kHz down to 55 Hz enabling use in most applications without a subwoofer. Where higher SPLs with an extended bass response are required the Ci systems can be combined with d&b active subwoofer systems.