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rattling sound

  1. S

    problem with wharf 9DFS and denon 1909

    Hi. I have recently bought denon 1909 receiver with Diamond 9.5 series for front, 9CS for center, PC12 for sub and 9DFS for surround. I have opted for auto caliberation using the microphone given by denon as I am new to settings. Offlate I have been hearing rattling sounds from surround...