the weighting filter 8121FT-1

the weighting filter 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

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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.

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