Key Product Information

​​Frequency Range 

ETS-Lindgren offers a wide range of standard acoustic reverberation chambers to meet client needs. Standard reverb chamber models have low-frequency cut off points of 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, and 200 Hz. Custom reverb chamber designs are available to meet other performance specifications.

Precision Level Testing 

ETS-Lindgren Acoustic Reverberation Chambers are designed to comply with ISO 3741 uncertainty limits for both broadband and pure tone testing.

Transmission Loss Testing 

A reverberation chamber suite with a transmission loss tunnel allows the testing of the isolation characterizations of virtually any building material according to ISO 140 and ASTM E90.

Noise Emission Testing 

A single reverberation chamber allows for noise emission testing according to ISO 3741 for both broadband and pure tone sources. 

Specifications Select a tab below for more information

  • Modular Steel Isolated Floor or Concrete Isolated Floor (Depends on Chamber Size and Reverberation Time)
  • Modular 10.16 cm (4 in) Steel Panels
  • Ventilation Silencers for Fan or HVAC Connections (Wall or Ceiling Mounting Locations)
  • Sealed Pendant Lamps
  • Engineered and Designed to Host-site Ambient Conditions
  • Test-In-Progress Light
  • Acoustically Treated Cable Penetrations
  • Personnel Door
  • Equipment Doors When Required
  • Transmission Loss Aperture
  • Equipment Mounts (Wall or Ceiling)
  • Automatic Door Operator
  • Access Hatches
  • Exhaust Fan (Gas Evacuation)
  • Special Door Hardware



Acoustic Doors​ETS-Lindgren's SoundSecure™ Plug-in Doors are an integral component of all ETS-Lindgren's acoustic test chambers, sound isolation rooms, and audiometric booths.​
Anechoic Chamber ​​​ETS-Lindgren's Anechoic Chambers provide a precision-grade free-field environment used to measure sound source directivity, frequency response, and noise emissions from spherically radiating sound sources.<br>
Head and Torso Test Enclosure<p>​ETS-Lindgren's Head and Torso Test (HATS) Enclosure provides a free-field environment for making head and torso measurements on small devices such as cell phones and hearing aids. </p>
Hemi-Anechoic Chambers ​​​ETS-Lindgren's Hemi-Anechoic Chambers​ provide a precise free-field environment used to measure sound sources over a reflecting plane. Typical measurements include product noise testing, sound power, sound source frequency response, and sound source directivity.<br>
Predictable Field Chambers ETS-Lindgren's Predictable Field Enclosures are designed to provide acoustical and statistical energy analysis, to optimize the engineering and design requirements needed for an end-product application. 
Reverberation Chamber ​ETS-Lindgren's Acoustic Reverberation Chambers reflect sound to produce a non-directional or diffuse sound field within the chamber. They are typically used for sound absorption, transmission loss, and sound power measurements.
Small Device Test Enclosures ​ETS-Lindgren’s Small Device (SD) Test Enclosures provide a free-field environment for making survey and engineering grade measurements on small devices. ​

Key Features

  • 63 Hz to 10 kHz (Custom Frequency Ranges Available)
  • Precision-Grade Testing 
  • Transmission Loss Testing 
  • Noise Control and Noise Emission Testing 
  • Sound Absorption Testing
  • Transmission Loss Testing
  • Acoustic Testing
  • Sound Power Testing
  • Production Line Testing
  • Sound Isolation

Literature and Videos<a href="/sites/etsauthor/ProductBrochures/General%20Brochures/Acoustic%20Full%20Line%20Brochure.pdf"><img alt="" src="/_layouts/15/IMAGES/icpdf.png" />Acoustic Full Line Brochure.pdf</a>

L o a d i n g

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