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Why the rumble?

Discussion in 'Home Cinema Speakers' started by delta, Oct 7, 2001.

  1. delta

    delta
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    When I play FM, CD or Tape in stereo or surround mode I hear a feint background 'rumble' through my front speakers. At times it sounds like a truck passing in the distance - difficult to describe. My system is based on a Yamaha AX1 amp, the speakers are:

    Front Kef Q55 (set to Large)

    the others are all set to Small:

    Kef Q90 centre
    Jamo 300 rear
    MS centre rear
    Bose AM5 front effect
    REL Storm sub-woofer which is connected via the main speaker out terminals.

    I have checked and double-checked all my connections and settings and I am stumped as to the cause. Any suggestions will be appreciated. Thanks
     
  2. General Skanky

    General Skanky
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    Just what are you on about you madman? :D

    Maybe sub is up too high for that material. Iyt may sound fine on a DD soundtrack as you've become used to bass pounding your head in during a film???? :)
    On 'normal' audio it may just be ott??

    [ 09-10-2001: Message edited by: General Skanky ]
     
  3. delta

    delta
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    G!!

    The sub is usually off for music. The sound is very similar to the rumble you used to get from vynil or are you too young to remember? Gee, I'm so kind. :rolleyes:
     
  4. Reiner

    Reiner
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    Ground loop somewhere? Try different AC outlet(s), start disconnecting components/interconnects until you can narrow down the problem.
     
  5. delta

    delta
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    Reiner,

    Ah, this makes sense and I will check it out later. I am using two mains outlets and two regular x4 plug boards. Thanks for the tip!
     
  6. karldomingo

    karldomingo
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    Hi, I have a Rel storm and use to have a Yamaha DSPA1000, the system always suffered from a low back ground noise from the speakers when the Rel was connected either by the amps sub out phone or when the high level speaker connnection was used.
    I stopped the hum by running a connecting wire from the amps phono/turntable ground screw to the Rel's metal casing screwheads. Also had the same problem when using a Pioneer VSA-E06 and now a VSA-E07. Hope this helps.
     

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