Description of Model-8121FT-1 (IEC-268-1)

1)、8121FT-1 is the weighting filter made in accordance to IEC-268-1 requirement, it must linked with either Model-8121C  made by Sunlight Electronics Laboratory, to enable it to generate weighting noise filter that complied with IEC-268-1 requirement , for undergoing the life testing of the loudspeaker and by defining the rated power of the loudspeaker；

2）、When using please take note that: The input signal adopts the Pink Noise, and not other signal of noise sources.

3）Furthermore, the noise generated from this weighting filter also complies with the filter noise required by the JIS C5532.