Yamaha RX-A6A RX-A6A User Guide - Page 367
No sound is coming from the subwoofer, The subwoofer has been turned off by its auto-standby function.
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Page 367 highlights
TROUBLESHOOTING > When any problem appears No sound is coming from the subwoofer ( The playback source does not contain Low Frequency Effect (LFE) or low-frequency signals. To check it, set "Extra Bass" in the "Option" menu to "On", in order to output the front channel lowfrequency components from the subwoofer. For details, see the following: ( "Setting the use of Extra Bass" (p.204) ( Subwoofer output is disabled. Perform YPAO or set "Subwoofer" in the "Setup" menu to "Use". For details, see the following: ( "Flow of the speaker configurations" (p.115) ( "Setting the use of a subwoofer" (p.231) ( The volume of the subwoofer is too low. Adjust the volume on the subwoofer. ( The subwoofer has been turned off by its auto-standby function. Disable the auto-standby function of the subwoofer or adjust its sensitivity level. 367
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