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Sound Proof Box: GRAS AL0030 Production Line Acoustic Test Chambers

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THE AL0030 one of the most flexible anechoic test chambers on the market!

 

Production Line Acoustic Test Chamber

GRAS introduces the flexible production line acoustic test chamber, or commonly known as the sound proof box, the latest addition to our anechoic chamber lineup. Drawing on our extensive expertise in acoustics, this chamber is specially crafted for swift and reliable acoustic testing of devices like cell phones, tablets, and Bluetooth speaker systems. It facilitates testing for various parameters such as frequency response, Total Harmonic Distortion (THD), Rub&Buzz, and other microphone tests. Additionally, it accommodates optional sound sources for comprehensive testing. The chamber is equipped with multiple connections for injecting test and control signals into the Device Under Test (DUT), ensuring seamless and efficient testing processes. This soundproof box is an integral part of our commitment to delivering advanced solutions for acoustic testing needs.


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Product Overview

The sound proof box is built from a medium-density fiberboard lined with acoustic damping material. A large opening at the back of the chamber allows easy access to the chamber for configuring the test setup. The chamber has shock and vibration-absorbing feet that prevent vibration from the outside from influencing the measurements.

 

It has a drawer with multi-adjustable holders for easy and safe mounting and removal of the device under test (DUT). It can hold small and medium-sized portable devices up to (WxDxH) 300 x 200 x 228 mm (12″ x 8″ x 9″).

 

The sound proof box comes with four fixing points for microphones and sound sources, two at the top and two at the bottom panel. Holders for a total of four microphones and/or sound sources can be mounted at these fixing points. Additionally, a microphone can be attached to the drawer.

 

Also equipped to the sound proof box is a connector panel that can be configured with 8 or 10 (depending on drawer size) user-specified connectors that provide an interface to external instruments.

Product Features

Design

It is built from medium density fiber board lined with acoustic damping material. A large opening at the back of the chamber allows easy access to the chamber for configuring the test setup. The chamber has shock and vibration absorbing feet that prevent vibration from the outside from influencing the measurements.

 

It has a drawer with multi-adjustable holders for easy and safe mounting and removal of the device under test (DUT). It can hold small and medium sized portable devices up to (WxDxH) 300 x 200 x 228 mm (12″ x 8″ x 9″).

 

The test chamber has four fixing points for microphones and sound source, two at the top and two at the bottom panel. Holders for a total of four microphones and/or sound sources can be mounted at these fixing points. Additionally, a microphone can be attached to the drawer.

 

A connector panel that can be configured with 8 or 10 (depending on drawer size) user-specified connectors provides interface to external instruments.

 

 

A Flexible and Configurable Test Platform

AL0030 provides a flexible test platform that can be configured to suit specific needs.

AL0030 cirkler 2 


The basic configuration starts with selecting the chamber between the 3 versions:

  • AL0030-1 with a small drawer for maximum DUT dimensions (WxDxH) 30 x 20 x 6,6 cm
  • AL0030-2 with large drawer with fixture in upper part of the test space and maximum DUT dimensions (WxDxH) 30 x 20 x 22,8 cm
  • AL0030-3 with large drawer with fixture in lower part of the test space and maximum DUT dimensions (WxDxH) 30 x 20 x 22,8 cm

 

All versions include user selectable accessories for immediate acoustic testing.

 

As standard the AL0030 comes with a basic suite of accessories needed for audio response testing. The following are included:

  • The Acoustic Test Chamber (Sound Proof Box)
  • Choice of one microphone set
  • Choice of a set of  DUT holders
  • Choice of one microphone holder
  • One connector panel drawer:  select between standard or large 
  • One cable for the microphone set

 

Additionally, the test chamber can be fitted with a sound source and artificial ear.
The connector plate can also be ordered blind for your own adaptation.


You can find more information in the downloable brochure/ datasheet for the Included and optional accessories for AL0030

 

If you should have have needs that are not covered by these options we are open to customize it to suit your specific needs. 

 

Quality and warranty

The Acoustic Test Chamber is covered by a two year warranty. For cables and accessories, the warranty for the specific item is valid.

Product Benefits

Benefits of AL0030 Sound Proof Box at a glance:

  • Repeatable testing and reliable data
  • Easy open/close for quick and safe change of DUT
  • Flexible test jig for easy adjustment to new DUT
  • Flexible microphone mounting for both front/back side speakers as well as edge-mounted speakers
  • High quality, high sensitivity ¼″ CCP measurement microphone included
  • Individually calibrated frequency response (compared to a reference measurement in the room)

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