The Monitor Audio CSS230 in-ceiling speaker features an innovative shallow-mount design with an installation depth of only 50 mm, specifically engineered to deliver high-fidelity audio performance in spaces where premium speakers were previously impractical due to limited mounting depth. This round ceiling speaker utilizes a hybrid back-box construction and patented full-range driver array to maintain consistent audio quality while offering exceptional installation versatility. With a speaker size of 80 mm (3 inch), the CSS230 handles power from 10 to 60 watts and delivers a frequency response range of 85 to 30,000 Hz. The sensitivity rating is 86 dB with a nominal impedance of 8 ohms. The hybrid enclosure design combines the benefits of multiple construction approaches for both installer and end-user. Three patented 80 mm C-CAM bass-mid drivers work in concert to achieve bass reproduction comparable to a 165 mm driver, all from a discreet recessed profile. In keeping with Monitor Audio's design integrity, the crossover incorporates high-quality film capacitors and low-loss inductors selected for signal integrity, ensuring detailed audio reproduction and dynamic performance for a speaker of this size and application. When configured in ported mode, a fine mesh protects the acoustic system from dust ingress. The speaker features a 19 mm C-CAM Gold dome tweeter and three 80 mm C-CAM bass-mid drivers. Finished in white, the visible diameter measures 250 mm with a mounting cutout diameter of 211 mm. Weighing 2.88 kg, this speaker is compatible with Dolby Atmos systems and suitable for both music listening and home cinema applications, though it does not function as a center channel, dipole channel, subwoofer, or include Bluetooth connectivity, motorized operation, or waterproof capabilities.