A:Answer Hi there,
I understand that your HTZ9F is having issues with sound. Please try following the steps on the link below:
https://www.sony.com/electronics/support/home-theater-sound-bars-home-theater-systems/ht-z9f/articles/00023449
If you are unable to resolve your concern, please email us at socialsupport@am.sony.com with the following details:
Name:
Best Buy Username:
Model Number:
Issue:
Telephone Number:
Best Time to Call:
Sincerely,
Earl
Sony Social Support