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Earth hum from pre-amp

Discussion in 'Hi-Fi Stereo Systems & Separates' started by Jula, Jun 12, 2005.

  1. Jula


    Products Owned:
    Products Wanted:
    Hi All
    First post.
    I have a Denon tuner/amp/CD system and I'm using a legacy turntable (a JVC in fact) from a previous old combo system. After buying my Denon and discovering that I needed a pre-amp I bought a very cheap one from Richer Sounds.
    Trouble is I have a really bad earth hum whenever I play vinyl.
    Admittedly I have loads of stuff using the same 13 amp socket DVD player, TV, Freeview box etc, most of which don't have an earth cable and when I unplug them it improves radically, but I noticed that my cheap pre-amp also doesn't have an earth cable (just one of those plastic blank pins on the plug).
    The turntable itself is also without earth.
    Any suggestions gratefully received.

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