First, because of the limitation of space, customers may not have the conditions to make semi anechoic room near ideal free field, which may only require a smaller volume of sound insulation near the free field. We can make a sound - proof box according to the needs of the customer.

1. wedge anechoic chamber, the internal effective size 600*600*700mm, 50dB isolation, internal background noise can be less than 20dB (A) --25dB (A)

2. flat panel noise reduction box, internal effective size 600*600*600mm, isolation greater than 35dB, internal background noise can be less than 30dB (A) --35dB (A)

The silencing box there are two kinds of products, a wedge type silencer structure, external use of steel production, beautiful and durable;

1. wedge silencing box function:

Inside the box, artificial mouth, artificial ear, anti human head, noise meter, etc. are used to test and debug products to ensure that the products are tested through relevant audio.

2. wedge anechoic box size:

For example: the external 1100mm*1100mm*1200mm, the internal 600mm*600mm*600mm.

The performance of the 3. wedge anechoic chamber:

The background noise is less than 25dB, isolation 50dB, cutoff frequency 400Hz

4. wedge anechoic box features:

High precision, good sound absorption effect, namely the narrowing of the anechoic chamber, the occupied space is slightly larger, the price a little expensive, mainly used for testing of high accuracy, large enough space in the laboratory to test the customer, for accurate testing of automotive parts, electronics, information, and all parts of the home appliance industry.

Two, some customers, due to space and cost constraints, also do not need high precision sound box, but also provide another product, flat type sound box.

The product is made of steel plate structure, filled with high efficiency sound absorption and sound insulation material, and the interior is designed by our company. The sound absorbing cotton board is made up of different sound absorbing materials based on the principle of acoustics, so as to absorb the sound waves at different frequencies. There is a movable drawing board with sound absorption design to facilitate testing.

1. plate anechoic box function:

It is generally applicable to small motor, medium and small household appliances, horn, mobile ACOUSTIC test. (can be matched with observation window)

2. flatbed muffler size:

For example: the external 800mm*800mm*800mm, the internal 600mm*600mm*600mm.

3. flatbed silencing box performance:

The outside is less than 70dB, and the internal is less than 35dB (A).

4. flatbed silencing box features:

The unique sound absorption and sound insulation layer design, the effect is good, the space is small, the use is convenient, the price is cheap.

When customers need fast acoustic test on production line, that is, automatic door opening and closing, we offer flip door and drawer type automatic door silencer for customer selection.：
1.Automatic flip

2.Automatic drawer：

The box can be built in double middle empty box, and the sound insulation effect is the best. It can achieve the background noise of less than 20dB, providing the acoustic testing environment for electronic and electromechanical products, such as micro motor, micro massager, computer, cell phone and so on.