JBL MTC-19MR - Mud Ring Construction Bracket for Control 19CS

The JBL MTC‑19MR is a mud‑ring construction bracket (plaster ring) designed to support and guide the installation of ceiling‑mounted JBL subwoofers. It installs before drywall (sheetrock) is applied and provides a precise circular offset and edge guide to help ensure a smooth, professional finish when plastering or “mudding” around the speaker opening. This accessory is typically supplied in packs of six and is intended for use in new construction or retrofit applications where ceiling subwoofers need a reliable mounting frame prior to finishing the surrounding surface.

 Key Features

• Designed for ceiling subwoofer installations

• Acts as a mud/plaster ring for drywall finishing

• Provides a circular offset to guide sheetrock plastering

• Helps achieve a clean, professional ceiling cutout

• Simplifies pre‑sheetrock speaker placement

• Pack includes six mud‑ring brackets