Trotsky 0 Posted May 21, 2018 Hi everyone. New to forum person here with a helix LT hummer . I’ve had the Helix since August 17. Very pleased with it, however about 4 Weeks ago a nasty constant hum has developed. Before everyone starts bouncing back with ideas about guitar cables and everything else this is a strange one. I use it in 4 cable to my valve amp and don’t use any amp models. So, helix connected to amp with 4 cables or directly in to front of amp, connect the mains lead to the helix and the gruesome loud hum appears before the helix is even switched on!! Driving me nuts now as my last three gigs have not been a pleasurable experience ! Personally I think the helix is duff but any ideas out there guys ?? Share this post Link to post Share on other sites
cruisinon2 2,062 Posted May 21, 2018 What happens if you run the guitar straight into the amp with Helix removed from the equation completely? Is the hum still present? Any other gear/pedals involved? Share this post Link to post Share on other sites
Trotsky 0 Posted May 21, 2018 Guitar into amp is as quiet as a church mouse. Tried friends amp, same noise. I’ve removed all my other pedals etc from the equation. Share this post Link to post Share on other sites
patdixon 12 Posted May 21, 2018 1 hour ago, Trotsky said: before the helix is even switched on So with it on and hooked up in 4cm do you also have guitar sound with the hum, or just hum alone? What if you just go straight into the amp input from the left/mono 1/4 output jack, any difference? Share this post Link to post Share on other sites
Trotsky 0 Posted May 21, 2018 Have guitar sound output from helix with constant hum either direct in or 4cm. Obviously no guitar with helix switched off but the hum comes through the amp. Share this post Link to post Share on other sites
patdixon 12 Posted May 21, 2018 Since you've only had it since Aug I'd open up a service ticket. Share this post Link to post Share on other sites
Trotsky 0 Posted May 21, 2018 I’ve done that. No help. Looks like I’ll have to return it for repair/replacement...major grief ! Share this post Link to post Share on other sites
patdixon 12 Posted May 21, 2018 Sorry to hear that. I have an LT also but haven't experienced that on mine. Most of my problems are operator error :o) Share this post Link to post Share on other sites
Joepeggio 71 Posted May 21, 2018 Have you tried to isolate the Helix ground. as only a test, find a 2 to 3 prong plug. Isolate helix, never use this on the tube amp chord!! Still noise? https://www.walmart.com/ip/Axis-Grounded-AC-Plug-Adapter-2-pack/21054194?wmlspartner=wlpa&selectedSellerId=1131&adid=22222222227015565217&wl0=&wl1=g&wl2=c&wl3=40880551952&wl4=pla-78808727072&wl5=9014416&wl6=&wl7=&wl8=&wl9=pla&wl10=112562428&wl11=online&wl12=21054194&wl13=&veh=sem Share this post Link to post Share on other sites
Trotsky 0 Posted May 21, 2018 That I haven’t tried. I have a take-apart iec connector that I can just remove the earth from. I’ll give it a try. Share this post Link to post Share on other sites
stumblinman 198 Posted May 22, 2018 Return it and get HX Effects if you're happy with your amp but just want more options. HXFX is a pretty solid piece of kit. Other than the hardware issues that require sending it in for IC replacement at your expense, of course. I wish you luck! Share this post Link to post Share on other sites
Trotsky 0 Posted May 22, 2018 I’ll return the unit as it’s under warranty so I definitely won’t be paying a bean! Share this post Link to post Share on other sites
