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> Bruel & kjaer 4152 artificial ear
Bruel & kjaer 4152 artificial ear
Bruel & Kjaer 4152 Artificial Ear
* Used with 1" Microphone Type 4144 and Preamplifier Type 2669
* 2 cm Coupler DB 0138, 6 cm Coupler DB 0161 and 6 cm Coupler DB 0909 for Measurements on Insert Type Hearing Aids, Earphones, and Headphones
* Conforms to IEC 126, ANSI S3.7-1973 and NBS 9A
