​ETS-Lindgren's SoundSecure Plug-in Doors are an integral component of all ETS-Lindgren's acoustic test chambers, reverberation chambers, sound isolation rooms, and audiometric booths. SoundSecure Doors are available with excellent acoustical ratings and feature an optional window in a standard location. 

The plug-in assemblies bring ETS-Lindgren's sound isolation to conventional construction. Designed for acoustical consultants, architects and engineers, ETS-Lindgren's Plug-in Doors are an effective means of providing superior sound isolation in new construction and renovation projects. 

SoundSecure Plug-in Doors are faced with 16-gauge steel, feature mortised, cam-lift butt hinges, and are sealed with magnetic gaskets at the head and jambs. These doors are furnished with chrome-plated die-cast zinc handles mounted on heavy duty push plates and can be hung to swing either in or out. 

All exposed surfaces of the door and frames are powder-coated with a paintable powder coat. While ETS-Lindgren offers a standard powder coat color, we can also provide colors to match or accent existing decor or to create an additional interior design element.

Key Product Information


​Durable, Performance Driven Construction

SoundSecure Doors are designed and manufactured with durability and performance in mind. Our double-sealed gaskets, tight bend radius, and uninterrupted seals around the hinges provide a tight and complete seal. Door windows are produced with a desiccant material that prevents condensation. A sound absorber is installed between the two glass panes to improves acoustical performance.​

Fully Assembled and Inspected

To ensure optimum performance, SoundSecure doors are assembled and inspected at our factory to ensure proper fit and optimum performance.​

Window Sizes and Locations

Every SoundSecure door can be designed to include a window. These windows are available in many sizes and locations.​

Flexible Design

All SoundSecure doors are split frame designed, and can be utilized in both new and existing construction, for ease of installation.

Specifications Select a tab below for more information



  • SoundSecure Plug-In Door with Trim Ring with 10.16 cm to 15.24 cm (4 in to 6 in) Walls
  • Optional Window Location
  • Optional Window Location

Key Features


  • Durable Construction Throughout
  • Fully Assembled and Tested at Factory
  • Multiple Window Sizes and Locations
  • Perfect for New or Existing Construction

Literature and Videos


L o a d i n g

 Catalog-Item Reuse