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Showing results for tags 'exp pedal jack'.
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Good day folks. I Finally upgraded to a Helix LT from (HD500X). It is a mind blowing incredible pedal. I do have to sort out an issue that me and a friend, whom both have the same (Older) Marshall amp and same Helix pedal. We both are using this pedal with the 4CM and using a modeled clean tone. Now that we have the Helix and the ability to use snapshot mode we also want to utilize the clean channel of the Marshall by changing amp channel with the helix using the EXP pedal 2 jack. It works no problem changing the Channels but when plugging in the cable you instantly get a loud hum. We tried everything and googled it extensively. As far as we can tell it is also a problem with both the Helix and the (Axe FX units) with older amps. We tried a new DSL combo, it does not hum when using the Helix to switch channels. Talking to my amp tech he needs to meter the Helix jack for continuity and he thinks its either a ground loop or something affecting the switching matrix in the Head. Each jack on the DSL is a standard tip to sleeve short. But it is referenced to the chassis. When he comes into town this weekend he is going to trouble shoot it for me. I'm just curious if anyone else is having this issue on older amps? Has anyone had an amp tech fix the humming issue? Any help or incite will be greatly appreciated. Cheers Rick
