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Sub-woofer HUM issue when turned ON using Trigger Out from Denon 2312CI

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#1 of 1 OFFLINE   Mervv



  • 1 posts
  • Join Date: Jun 18 2012

Posted June 18 2012 - 01:24 PM

Hello Robert, I am facing a weird humming issue with my HKTS200SUB sub-woofer. I have connected the Denon 2312CI Trigger Out to Harmon Kardon sub-woofer Trigger Input with Harmon Kardon supplied monaural mono audio cable and it works all fine. The Sub switches ON/OFF in sync with the receiver and also delivers great punch and vibration effects. However, the issue here is that although I don't hear any humming sound from my speakers on MUTING the receiver, I hear that slight HUM from my sub-woofer at mid sub-woofer level which further amplifies on increasing the sub-woofer level to max. After google-ing, I found out that it can be a ground issue and tried switching the power connections across the surge protector but to no avail. I also read about the conflict between the SUB and receiver via the Trigger Cable and tried disconnecting the Harmon Kardon Trigger cable. I was stunned to see the sub-woofer HUM disappear, with absolutely no distortion noise at all. But now am back to square one, where I have to manually switch ON/OFF my sub-woofer when needed. Please HELP!!!! My specs: Receiver: Denon 2312CI Home Theater Speaker System: Harmon Kardon HKTS 60BQ Sub-Woofer: HKTS200SUB Surge Protector: Monster Home Theater Surge Protector JP810

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