CMX CSK-56PC 5″ Ceiling Speaker with Back Box (20W, 8Ω / 70V / 100V) The CMX CSK-56PC 5 inch Ceiling Speaker with Back Box is a professional-grade 20W ceiling speaker designed for clear voice announcements and background music in commercial and institutional spaces. Equipped with a 5″ driver and metal back box, this model ensures improved sound quality, controlled acoustics, and reduced sound leakage to adjacent rooms. With selectable 8Ω, 70V, and 100V line operation, the CSK-56PC offers flexible installation for both small amplifier setups and large-scale PA systems. Its flush-mount ceiling design and clean white finish blend seamlessly into modern interiors, making it ideal for offices, schools, hotels, hospitals, retail stores, and places of worship across India. If you are searching for a 5 inch ceiling speaker with back box in India for a reliable and professional PA system, the CSK-56PC is a smart and durable choice. Frequently Asked Questions What is the benefit of a back box in ceiling speakers?A-1 The metal back box improves sound quality, reduces sound leakage, and provides safer installation in false ceilings. Can I use this speaker in a 100V line system?A-2 Yes, it supports 8Ω, 70V, and 100V line systems. Is it suitable for background music?A- 3 Yes, it delivers clear speech and smooth background music. How many speakers do I need for my office?A-4 For small cabins, one speaker is sufficient. Larger areas require multiple units depending on size. Is installation complicated?A- 5 No, it is a flush-mount ceiling speaker designed for easy installation in false ceilings. Specification Model CSK-56PC Description 5″ Ceiling Speaker with Back Box Rated Power Output 20 W Maximum Power Output 40 W Speaker Size 5″ Frequency Response 80 Hz – 18 kHz Sensitivity (1 W / 1 m) ~88 dB Impedance 8 Ω / 70 V / 100 V (Selectable with transformer) Back Box Included Yes (Metal Back Can for Better Acoustics) Mounting Type Flush Ceiling Mount Enclosure Material High-Grade ABS Speaker with Metal Back Box Colour White Dimensions (Speaker) Approx. Ø150 × Depth 85 mm Dimensions (Back Box) Approx. Ø170 × Depth 120 mm Weight Approx. 1.2 kg
