almaguerr

This is the line 6 response to a ticket that I raised for a gound loop problem between the helix ext amp and my amplifier's footswitch connection (Marshall JCM 2000 DSL 100): Hector, Thanks for your reply. We have not heard of any incompatibility with the specific amp you're using. We cannot guarantee 100% compatibility with every manufacturer's amp but "ground" hums are not always easily identified as to the exact cause. There is a potential for a ground loop any time there is more than one piece of gear with a three prong power plug hooked together with audio cables. It’s a complicated thing to diagnose because sometimes there are buzzes from something being actually wrong and broken or hooked up in correctly. Other times, everything can be perfect, but the multiple paths to ground are slightly different and that difference generated a 60 cycle hum at the strength of the ground potential difference. Let me know if you have any further questions after thoroughly trouble shooting. Kind regards, Jason-Line 6 support Today I´ll do the relax box with only 1 relay and a TS cable, because I Only need the channel change, no need reverb or eq change!