The CS-1600 ceiling speakers (white finish) feature a two-way design which gives full-bandwidth sound full of bass and clarity. The main driver is a 6.5" polypropylene cone complimented by a 1" ferro-fluid cooled silk tweeter. These low impedance speakers do no sacrifice frequency range in the way that 100/70v line speakers inherently do, and with the rear cabinet allowing full tuning of internal acoustics the bass is rich and deep without distortion.High Sound Pressure Levels:Ceiling speakers inherently lack power at the bottom end, so we've tuned the CS-1600 to have a louder sensitivity of 90dB to punch through high-noise presentation environments.Simple to fit:Simple to mount into false ceiling tiles, the CS-1600 is the audio contractor's ultimate product for ease of installation. Cut a 200mm hole and fit the speaker! It's clean and easy.Shallow Cabinet:Only 5" (128mm) deep, no compromise needs to be made when positioning the CS-1600 in the ceiling. They can be placed optimally around the room and they fit in a wide variety of false-ceiling environments. LOUDSPEAKER DIMENSIONS 230 x 128mm (9 x 5")CUTOUT SIZE: 200mm (7 7/8")SPEAKER WEIGHT: 3.2kg (per pair)POWER HANDLING: 30W RMSWOOFER: 6.5"TWEETER: 1" SilkSPEAKER TERMINALS: Bare-wire spring typeNOMINAL IMPEDANCE: 8 ohmsSENSITIVITY: 90dB (1w/1m)FREQUENCY RESPONSE: 70Hz-20kHzCOLOUR: White