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CNMB 62 is a shielding box specifically designed for hearing aid testing, with a larger inner cavity that effectively prevents internal reflections and reverberation, providing a stable and reliable acoustic environment for hearing aid tests. The outer cavity is made of full sheet metal, ensuring good electromagnetic shielding.
The product features a unique compression design in terms of acoustics, achieving four layers of complex sound insulation on a limited wall thickness. It uses soundproof velvet as the surface layer, solving the problem of instability caused by the aging and damage of the wedges during use, and achieving excellent sound isolation in a limited and compact space.
Specifications
Parameters | |
Outer Dimensions | (W)340×(L)365×(H)280mm±5mm |
Inner Dimensions | (W)200×(L)160×(H)90mm±5mm |
| Isolation Degree | Audio Frequency: External 80dBA, Internal ≤50dBA, Radio Frequency: 0.8 GHz - 2.4 GHz, Isolation ≤30dB |
Number of BNC Connectors | 4（Customizable） |
Switch Type | Manual Switch |
| Programmable Control | Not Supported |
Isolation curve
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