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AUDIOPHONE -  test and EU - certification

NOISE AUDIOPHONE : DIN CE / EN 352-2:1993 - proofed by  the BIA, Sankt Augustin, Germany, No. 9305429 .9, Trademark No.. 398 27 128

 BIA  Test-Document

• EG-TEST (scanned, 250 kb)
• BIA Certification
• Trademarks (scanned, 233 kb)

Technicle Dates

By   90 dB(A) ´til  100 dB(A)  and the frequence  ´til  1000 Hz - are between  21 dB(A)  ´til  25 dB(A).    More than  1000 Hz  between  35 dB(A)  ´til   38 dB(A).

By  the  maximum of 120 dB(A)  is  the  limit  of  rd.  40 dB(A).

Between the border  of  80 dB(A)  and  120 dB(A)  all different justifying positions are possible.