Frustrating new hiss front front mains

Discussion in 'AV Receivers' started by norman_maclean, Jul 15, 2003.

  1. norman_maclean

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    I have a setup with JBL Northridge speakers and Marantz 5200, this worked perfectly and I loved it and has been working for over a year.

    When I moved into a new place there was a hum/hiss from all the speakers and after help here it was determined to be a grounding problem with the cable, so I got that fixed.

    Recently there has been a his sometimes that I notice, seems to be worse sometimes than others. I have kind of ignored it as I haven't watched movies lately only cable and assumed it was the cable signal being bad. However last night it was TERRIBLE, so I disconnected the cable altogethre and threw in a DVD. Hiss was still there. Then I listened to each speaker only to find out it only comes from the mains. It isn't the speaker, if I swith the rear to be the main then I hear the hiss there. I had to disconnect my 2 mains and listen just through center and all other speakers, even on 6 channel music mode there is a hiss only from the front 2 mains....what could be going on..something go wrong with my reciever?

    Thanks
     
  2. RobWil

    RobWil Supporting Actor

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    Maybe your speaker wires for your mains are crossing over some power cords or some other source of interference. Check it out and if they are try to isolate them .
     
  3. Chu Gai

    Chu Gai Lead Actor

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    Any other changes in your home like having added some dimmers or maybe a new appliance even an audio component?
     
  4. norman_maclean

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    No, nothing else new in the setup....
     
  5. Matt_Doug

    Matt_Doug Stunt Coordinator

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    lowering your receiver reference level might make the hiss go away. It shouldn't be but a few decibels assuming that there are no ground loops or other gain stages between your speakers and your receiver (amps, crossovers, equalizers) It maybe you set the gain/level controls on your receiver for the fronts too high to compensate for a larger or more sound absorptive room in your new house.
     

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