Sound Insulation Chamber/test Room

Sound insulation chamber/test room:

For testing the sound performence level of the eletronic elements such as the motor, speaker,microphone, and so on.

Acoustic effect:

Background sound reduce to 30-15dB with the outdoor noise 60-80dB.

FOB Shenzhen:

60000USD/set

Payment term:

T/T 50% deposit, 50% before shipment

Materials & parts:

Glass fibre, concrete, steel panel, insulation pad, compact damp spring absorber, MDF board,screw, paint, sound absortpion wedge, sound insulation sprong, glass, glue,etc.

Noise performence degree:

Cosmic volume -254dB absolutely silent

0-20 dB very quiet, almost feel;

20 -40 decibels quiet, like a whisper;

40 -60 decibels in general, ordinary indoor conversation;

60 -70 decibels noisy, detrimental to nerves;

70 -90 dB is noisy, nerve cells are damaged.

90 -100 decibels noisy intensified, hearing impaired;

100 -120 decibels unbearable, stay for a minute that is temporarily deaf.

More than 120 decibels are deaf or deaf