Sony STR-DH750 - Manual (Page 238)

MULTI CHANNEL AV RECEIVER
STR-DH750/STR-DH550
Connecting the optimizer microphone
Optimizer microphone (supplied)
1. Connect the supplied optimizer microphone to the AUTO CAL MIC jack.
2. Set up the optimizer microphone.
Place the optimizer microphone where you will sit and set it at the same height as your ears.
Notes on use
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