Chief CMA-347 Projector Vibration Isolator

The Chief CMA347 is a vibration isolating coupler that sits between two Chief CMS columns and helps keep projected images steady when a building shakes. It breaks the direct path of vibration from HVAC equipment, foot traffic, or passing vehicles, so the movement that reaches your projector is greatly reduced. If you manage a classroom, boardroom, or home theater where even a small wobble can spoil a presentation or movie, this simple addition can make a noticeable difference.

Chief rates the CMA347 for projector systems that weigh up to 35 pounds, and it ships with two spring sets so you can match the isolator to lighter or heavier loads. Installation is straightforward because the unit threads onto standard 1.5 in NPT Chief columns, letting you place it anywhere along an existing drop or include it in a new build. The patented internal design handles the damping work for you, so once it is in place, no ongoing adjustment is required.

Integrators, facility managers, and home enthusiasts who deal with vibrations from nearby subway lines, upper-floor gyms, or rooftop air handlers will appreciate the improvement in image stability. By isolating the projector rather than chasing every source of shake, the CMA347 offers a practical and cost-effective solution that fits seamlessly into most Chief mounting configurations.

Highlights:

• Supports projector systems up to 35 lb (15.9 kg)
• Threads between two Chief 1.5 in NPT CMS columns to form an isolation joint
• Reduces image movement caused by structural vibrations such as HVAC, foot traffic, and road noise
• Includes two spring sets so you can fine-tune performance for different load ranges
• Compatible with a wide range of Chief mounts and extension columns for flexible installation