Anechoic Box (AEB)

>> Click here for the Chinese version (点击这里查看中文版)

Anechoic box is a small acoustic box for acoustic measurements. Unlike an anechoic chamber, it is not possible to make acoustic measurements in accordance with the ISO standards, however, correlative and comparative measurements are feasible by making corrections based on the master data acquired in the anechoic chamber.
In order to make acoustic measurements, acoustic analyzers such as sound level meter and FFT analyzer are used to inspect the acoustic characteristics and abnormal noises in small drive components, speakers, telecommunications equipment…etc.
Sonora Technology has developed an anechoic box with extremely high sound insulating value, even higher than that of an anechoic chamber. That allows to set a background noise in the box to a lower level. Depending on the installation environment, a single-digit background noise can be ensured. *OA3.5dB (actual value)

No assembly work required

Unlike an anechoic chamber, the Anechoic Box has the advantage that there is no need for an on-site construction..
All you have to do is to carry in and install the anechoic box exported from Japan.

Extensive customizability

According to the measurement methods, Sonora Technology will suggest how to set up measurement targets and microphones.
Various customization can be applied including sliding table, clamps for microphone, cable ports, lighting and coupling.

Confidence backed up by our proven track record

Sonora Technology has the largest market share as a manufacturer of anechoic boxes in Japan. Since 2003, Sonora Technology has dealt with 1,085 companies, mainly among major Japanese companies, and concluded with 3,424 deals during around the 20 years.

Usage example of an anechoic box: it can be placed right next to the desk of the person in charge of research and development. Since it has the same level of sound insulation performance as an anechoic chamber,
It allows him/her to quickly check the correlation between its data and the master data acquired in the anechoic chamber. Using an anechoic box in combination with an anechoic chamber may accelerate efficiency of research and development, while the acquired data in the low frequency range will be different, since the volume and the thickness of the sound absorbing layer differ from those of the anechoic chamber.
The difference of performance level calculated from the acquired data in an anechoic chamber can be used as an offset, which enables the data to correct the performance level measured in an anechoic box.
Since no standards nor clear criteria are defined unlike an anechoic chamber, an anechoic box is suitable to be used for the ancillary and simple purposes.

MODELS / PRICES

Anechoic boxes are available in TYPE 1 to TYPE4 specifications. But basically, we design according to the size of the user’s measuring subjects, measurement method and workability. There are many examples such as using different mechanisms (electric, pneumatic, or hydraulic) to open and close the door, addition of lighting and BNC terminal boxes, and free setting position of the microphone.

※ The freight is not included.
※ An inexpensive anechoic box out of the specification can be manufactured as well.

SPECIFICATION

Top-class sound insulation performance is guaranteed.
The sound insulation performance of the anechoic box is unrivaled compared with other companies. The background noise in an anechoic box can even reach to 0 dB varying depending on the installation environment. An advanced acoustic measurement space can be realized by introducing our anechoic box.

PARTS LIST

Standard

• Dedicated base (height adjustable)
• Vibration isolation pad x 4 points support
• Sound absorption layer:AST sound absorption material+back sound absorption layer
• Double shield sound insulation door: Perimeter sound absorption type
• Utility pipe: Inner diameter 55 x 2 locations
• Hanging hook M8 x 4 pieces
• Sample table: Steel T4.5 (with sound absorbing mat)
• Sealed handle, operating handle
• Die-cast leaf hinge
• Adjuster, caster
• Eye bolt M20-24
• Baked painting: Standard color (silver) or specified color

Option

Materials Download

You can download the PDF file from here

SONORA’S ADVANTAGES

Price lower than Competitors

We pride ourselves on offering top-notch products right in our own factory, cutting out the middleman and ensuring that you get the best value for your money. When you compare quotes, you’ll find that our prices are consistently lower than our competitors. We guarantee the same specifications and warranty terms as the competitors. So you get the same great product.

First penguin in the industry to introduce “Acoustic Performance Guarantee System”

Since our establishment, Sonora has remained steadfast in our commitment to ensuring the superior acoustic performance of all our products. Through meticulous verification measurement tests, we guarantee that our stated values are substantiated, thus eliminating any concerns regarding insufficient sound reduction, even in spaces equipped with Anechoic Chambers. Sonora stands firm in our dedication to fulfilling our responsibility as a leading sound insulation specialist company, delivering unparalleled quality and reliability to our esteemed clients.

Second-to-None Product Performance

Sonora’s unwavering commitment to research and development drives continuous enhancements to our proprietary sound control technology, which constitutes the foundation of nearly all our products. Since our inception, we have consistently expanded our expertise through the resolution of diverse noise challenges, further solidifying our proven track record and distinctive knowledge base.

We manufacture anechoic boxes in Japan and are all made of premier quality. We highly recommend our anechoic box with pride.