Chief VIBRATION ISOLATOR COUPLER - CMA348

Product Overview

The Chief CMA348 is a projector mount vibration isolator coupler that reduces on-screen image movement caused by everyday building vibration. It connects two Chief CMS extension columns and limits the vibration transmitted to the lower column and projector. The design accommodates complete projector systems weighing 35 to 100 lbs (15.9 to 45.4 kg). It is an effective solution for venues where HVAC cycling, foot traffic, or nearby roadways destabilize the projected image.

Product Description

The CMA Large Venue Vibration Isolating Coupler targets image shake in ceiling-suspended projection installations. Common building vibrations—HVAC equipment, foot traffic, road traffic, and doors shutting—travel through the structure and into the projector, producing a visibly unstable image. The CMA348's patented design connects two Chief CMS columns (1.5-inch NPT) and isolates the vibration that reaches the lower column, stabilizing the projected picture. It supports systems between 35 and 100 lbs, where system weight includes everything below the isolator: the lower column, the projector mount, and the projector. For reference, average weights of common mounts include the RPAU at about 4 lbs (1.8 kg), the RPMAU at about 5 lbs (2.3 kg), and the VCMU at about 33 lbs (15 kg); CMS columns under 12 inches typically weigh 1 lb (0.5 kg) or less. The coupler is also compatible with custom mounts via Chief MountFinder. Installed inline within the column run, it integrates without modifying the projector mount. For an XL, higher-capacity finish option, compare the CMA348W, or explore compatible columns in the Chief collection.

Key Features

• Vibration isolation — Reduces image movement caused by HVAC, foot traffic, road traffic, and doors shutting.
• System weight range — Compatible with complete systems between 35 and 100 lbs (15.9 to 45.4 kg).
• Patented coupler design — Connects two extension columns and isolates vibration transmitted to the lower column.
• CMS column compatibility — Works with Chief CMS columns using the 1.5-inch NPT thread.
• Custom mount support — Compatible with custom mounts identified through Chief MountFinder.
• Inline installation — Installs within the existing column run without altering the projector mount.

Typical Applications

• Auditorium
• House of worship
• Broadcast studio
• Commercial meeting space
• Training room

Technical Specifications

Frequently Asked Questions

What does the CMA348 do?
It reduces projected-image movement caused by common building vibrations such as HVAC, foot traffic, road traffic, and doors closing.

What system weight does it support?
It supports complete systems between 35 and 100 lbs (15.9–45.4 kg), including the lower column, projector mount, and projector.

Which columns is it compatible with?
It connects two Chief CMS columns using the 1.5-inch NPT thread and is also compatible with custom mounts via Chief MountFinder.

How does it install?
It installs inline within the column run, isolating vibration transmitted to the lower column without modifying the projector mount.

Is there a higher-capacity version?
Yes. The XL CMA348W is the comparable higher-capacity option.

What warranty applies?
This product is covered under the Legrand AV / Chief manufacturer warranty. Contact Creation Networks for warranty terms and support.