asoulier99 Posted May 1, 2015 Share Posted May 1, 2015 Hello I play Fender Stratocaster 77 on Amplifi 75. (Before i used a Marshall VS 100R (no problem)) I hear a noise ("bzzzzz" like interferences) when i play, this noise doesn't change even if I put hand on chords. Using the Noise Gate helps to reduce noise, but i loose dynamic on play. Not a real solution. With some configurations of effect/amp, i have no real noise, but when i start to play i hear a slight bzz especially on 3 first chords Same things in différents rooms, house in new so no problem about electric installation. Depending on my position to amplifi, noise si attenuated or amplified. I Will change Jack but i don't think this is rootcause. Help !! Quote Link to comment Share on other sites More sharing options...
Triryche Posted May 1, 2015 Share Posted May 1, 2015 Did you try a new instrument cable? Based on you description, sounds like it could be a bad cable or guitar wiring. Do you have another amp to try? Quote Link to comment Share on other sites More sharing options...
psarkissian Posted May 1, 2015 Share Posted May 1, 2015 What else is in your set-up, and how is it plugged in? Quote Link to comment Share on other sites More sharing options...
asoulier99 Posted May 1, 2015 Author Share Posted May 1, 2015 hi, i went today try another amplifi with my guitar & instrument cable. No noise ! no need to use noise gate and compressor can be put at max. 3 options : - linked to my house - linked to amplifi - linked to alimentation cable of amplifi because today it wasn't the one given with amplifi. Think it was an alimentation cable of a basic computer. For my set up, just a fender startocaster 3 x micro single coils, instrument cable, amplifi. Set up of amp : Noise gate (50%) + tube screamer (or others) + Amp simulation If i use compressor it's worst of course. Alexandre Quote Link to comment Share on other sites More sharing options...
asoulier99 Posted May 3, 2015 Author Share Posted May 3, 2015 Yesterday, i went to another house. No problem with same set up. So, definitely, problem is linked to my house built in 2009. I guess a problem of ground terminal to upgrade or presence of several halogen light spots on electric circuit of house.(a test in a room of my house without halogen spots did Not vive improvement of situation) Do you know opportunities to solve this problem ? Alexandre Quote Link to comment Share on other sites More sharing options...
Charlie_Watt Posted May 4, 2015 Share Posted May 4, 2015 Find the source of the buzz. Try other places in your house. Do you have lamp dimmers, ceiling fans? Those things put out lots of EMI that your guitar's single coils will pick up. Check the grounding of your outlets. That can be a safety issue as well. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted May 4, 2015 Share Posted May 4, 2015 Are there any Line 6 pedals plugged into the the RJ45 in the back? And there are no ground loops? Quote Link to comment Share on other sites More sharing options...
asoulier99 Posted May 4, 2015 Author Share Posted May 4, 2015 New trial and feedback of an electrician - trial in the neighbour's house 10 meter near mine : slight buzz - feedback of electrician : electromagnetic field of halogen spots or equipement dissipate after 1.5 meter, if buzz go on in all rooms it is probably not the rootcause. Considering advice of electrician, my ground loop would be ok, i have a resistance of 20 ohms if this one has not change since 2009. No high tension lines near houses Buzz even in garden if i used ground plug in wooden house dedicated to mower, kids games. This was very disturbing for electrician. I used no pedal or other connections except one define in my message and i have no dimmers ! This evening, i will try to shutdown electric installation and try to put on just one position. Put on position one after one to see impact on my amplifi. Quote Link to comment Share on other sites More sharing options...
asoulier99 Posted May 4, 2015 Author Share Posted May 4, 2015 After electric shutdown, and restart positions one by one, i discover that a pool of electric outlets, lights is involved in rootcause. I have to find the rootcause on one of this point : - 2 ceiling points in a room - 6 electric outlets - 3 garden lights - electric installation of garden house I need to find step by step which one doesn't work properly Quote Link to comment Share on other sites More sharing options...
psarkissian Posted May 4, 2015 Share Posted May 4, 2015 Have you tried a different signal source and cable? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.