Help !! Hum from prephono

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Hi all,
I have a problem. My Klyne 6LE/P sounds wonderful, but it 'picks up' a hum that I can distinctly hear (during pauses in sound) when I listen.
I have a ground cable from the turntable to the Klyne.
I noticed that moving the phono-to-preamp interconnects as far as possible from the powerchords behind my rack the problem is highly reduced or solved, but it's difficult to keep all the cables in that fixed position: after some time they tend to go... where they like ;-) and the 'hum' comes back.
I also noticed -guess this is the most important 'observation'- that if I touch both the phono-to-preamp cable connectors, the hum completely fades away. but I cannot stay with my hand behind the phono stage while listening, you know...

guess this is a 'ground' concern.

what can I do ???

thanks to all those who will help.

ciao
daniele

ps: interconnects are AQ King Cobra, but I also tried with a different model (Accuphase).
turntable is a Pro-ject RPM9.1x, but I don't think it can be responsible of that

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Topic - Help !! Hum from prephono - daniele_g 08:36:23 01/29/14 (12)

RE: Help !! Hum from prephono - BCR 12:01:50 01/29/14 (7)

RE: Help !! Hum from prephono - daniele_g 14:49:14 01/29/14 (6)

RE: Help !! Hum from prephono - BCR 15:17:40 01/29/14 (5)

RE: Help !! Hum from prephono - daniele_g 00:04:02 01/30/14 (4)

RE: Help !! Hum from prephono - BCR 04:27:41 01/30/14 (3)

Hum from prephono: I've won my battle !! - daniele_g 05:45:32 01/30/14 (2)

RE: Hum from prephono: I've won my battle !! - Caucasian Blackplate 09:50:12 01/30/14 (1)

RE: Hum from prephono: I've won my battle !! - daniele_g 14:33:32 01/30/14 (0)

RE: Help !! Hum from prephono - 6bq5 09:22:08 01/29/14 (3)

RE: Help !! Hum from prephono - daniele_g 00:05:40 01/30/14 (2)

RE: Help !! Hum from prephono - 6bq5 15:19:04 01/30/14 (1)

RE: Help !! Hum from prephono - daniele_g 08:03:59 01/31/14 (0)

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