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Is it possible to magnetically shield your TV

Discussion in 'AV Receivers & Amplifiers' started by Karma, Sep 21, 2003.

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  1. Karma

    Karma
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    Hi all

    An unusual problem for which I hope any of your experiences may help.

    I have just upgraded my Hi Fi to have two power amps. The sound coming off these is now magnificent.

    However, the tranformers in the power amp induces hum in the pre amp. The answer is not to have a power amp on the shelf directly below the pre amp.

    I use a metal rack (Apollo) that has five vertical, audio width, shelves permanently linked to each side of a large central shelf which houses the TV.

    Now without spending LOTS of money on additional cables (a metre run has already cost £295 just to match the existing cables) to split the amps up further, it seemed possible, with a little jigging around of the gear to have one power amp under the TV.

    Unfortunately it has induced staining on the TV. Using the TV's de gaussing circuit clears it, but as soon as the amp is switched on, the staining (which pulses) re appears.

    I feel that constantly de gaussing the TV may have a detrimental efect on the power amp.

    Knee jerk reaction is to place a sheet of metal under the TV. Will this work?

    Or does anyone have any other ideas on how to shield the TV from the amp.

    The equipment arrangement on the shelves is as follows.

    Left side of rack (five shelves) top to bottom

    CD Transport
    DAC
    Pre amp
    CD Recorder
    Power amp (Main stereo speakers - HF & Mid)

    Centre of rack (three shelves)

    Centre speaker
    TV
    power amp (Main stereo speakers - bass)

    Right hand side of rack

    DVD
    laserdisc
    Sky +
    Av processor
    power amp (centre speaker and rears)

    Whilst the AV gear is nice to have, the system has been designed so that when the AV side is not in use, there is no link (and hence no compromise) to the audio quality of music replay.

    Any help would be gratefully received, before I bankrupt the household on a two further lengths of cable will I can now ill afford, as I was "pursuaded" to upgrade to the Denon 2900 at the same time.

    Thanks

    Karma
     
  2. lynx

    lynx
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