ECM-AC2 Part 154283011
ecm-ac2
New (4,5 Meter) Calibration Mic Measurement ECM-AC2 Microphone for Sony STR-DG1000 STR-DN840 STR-DH520 STR-DH500 STR-DG910 STR-DG820 STR-DG720 STR-DG710 STR-DG600 STR-DG520 Supplied Part 154283011
The Sony Calibration Measurement Microphone are compatible with most Sony receivers for calibrating correct speaker output levels