The JBL Control 50 Series subwoofer-satellite loud speaker system provides high fidelity sound in restaurants, retail stores, music cafes, health clubs, theme bars, leisure venues, or any location where full-range high fidelity foreground/background music is required from surface-mount system. Available as packaged system or as separate items, the Control 50 Series is extremely versatile system. The C50PACK system contains four Control 52 satellite speakers and one Control 50S/T subwoofer as an easy pre-designed system.