Bruel & Kjaer 1/2" Prepolarized Condensor Microphone Type 4155 & 20dB Attenuator

A used, but clean, B&K 4155 microphone and a 20dB matched attenuator.

The microphone is supplied with its box. There is no box for the attenuator.

_gsrx_vers_526 (GS 6.6.6 (526))