Cable so my KC-150 wont hum!

[Jay-]

Hi, I have a Roland KC-150 and a few keyboards and a keyboard mixer.,

My main humming is from a kurzweil K2000 that does not hum stand alone.
However it hums like a bitch when used with my KC-150.

Guitars wont hum and newer keyboards dont hum on the KC.

I dont want to buy a feedback destroyer, but I want to buy the correct cables.
What are they!

Thanks!

[BF_]

Page 8 of the manual, 1/4" TS to line in. Guitars are not giving you hum as they are not powered, where your keyboard is and is evidently creating a ground loop. Try plugging both devices into the same outlet or lifting the ground on one end of the TS cable.

[space2012]

Originally Posted by BF_

Page 8 of the manual, 1/4" TS to line in. Guitars are not giving you hum as they are not powered, where your keyboard is and is evidently creating a ground loop. Try plugging both devices into the same outlet or lifting the ground on one end of the TS cable.

if its audio hum, buy a furman it-20 series ][
or monster pro 7000 ss

if its transformer hum, then buy psaudio humbuster 3.