The JBL MTC-424MR is a six-pack of optional mud ring brackets designed for installing Control 424C/T loudspeakers in sheetrock or gypsum board ceilings. The brackets help establish the speaker location before the ceiling material is installed.

Each bracket features a circular offset that provides an edge guide for plastering around the speaker opening. This helps create a clean, seamless cutout when the sheetrock is finished.

The brackets can also be used to strap wiring in place behind the ceiling and serve as convenient cutout templates for multiple installations. Integrated wings allow the bracket to attach to the building structure.

Product Specifications:

Product Type: Mud Ring / Pre-Installation Bracket

Quantity: 6

Compatible Loudspeaker: JBL Control 424C/T

Application: Sheetrock and Gypsum Board Ceiling Installation

Primary Function: Speaker Cutout Preparation

Plaster Guide: Circular Offset Edge Guide

Wiring Support: Yes

Cutout Template: Yes

Building Attachment: Wing Brackets