The SC-433C extends QSCs commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-433C is a 3-way, selectable bi or tri-amplified screen channel loudspeaker system comprised of two main units the MH-1075C high-frequency system and the LF-4315 low-frequency system.

The MH-1075C mid-high system features a high output, horn loaded 10 midrange cone driver and a 3 (75mm) titanium diaphragm compression driver mounted to an adjustable pan and tilt bracket. The MH-1075C includes a driver protection network and a passive crossover for bi-amp operation. Power limiter circuitry protects the high-frequency driver from overpowering. The MH-1075C provides extended frequency coverage for the critical midrange band. A high power 10 cone driver allows operation as low as 250 Hz and the advanced phase plug coupling permits a crossover point of up to 1800 Hz to the high-frequency horn. This ensures that most of the dialog range is reproduced by a single element, for unmatched intelligibility.

The LF-4315 triple 15 (381mm) low-frequency enclosure is designed specifically to address the extended low-frequency response required for cinema applications. The LF-4315 covers the frequency range from 35 Hz to 250 Hz. Close Coupled Woofers (CCW), with their tight spacing between woofers, improves coupling and keeps coverage angles wide over a greater frequency range than more widely spaced designs.

The SC-433C is designed for ease of installation. The MH-1075C components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the MH-1075C to the top of the LF-4315 enclosure.