The C SERIES C4 provides high quality paging and musical performance. Uniform voicing throughout the C SERIES means that the C4 can be combined with other models of the Commercial Design product family without compromising consistency from zone to zone. CommunityÃ‚â€™s proprietary Tru-Phase waveguide produces a consistently wide conical polar response up to 16 kHz. The genuine coaxial design uses separate magnets for the LF and HF drivers for reduced distortion and industry-leading sensitivity, thereby permitting up to 3 dB greater output level while requiring up to half the amplification power of competing products. Exclusive Drop-Stop tabs allow single-handed placement to speed installation and reduce labor time. Drop-StopÃ‚â€™s spring-loaded legs support the back can so that the installer no longer needs to hold the can against the tile while tightening the clamps. The front-face wattage selector switch enables quick adjustment of 70V/100V tap levels. A variety of installation accessories are available to accommodate different ceiling materials.