Hi Merlin,

My problem is exactly the same as stated in this post below.  The only thing i can add is that i get the sound humming without playing and after playing.  I get more noise with the FBV floorboard plugged in vs. if i unplug the fbv board.  Maybe that's an indication i don't know.  But as you can see from below it doesn't appear to be any cord or guitar issue.  I use the variax first model 500.  Also, i replaced the entire electronics on behalf of line6.  When i got the amp back from service the sound wasnt quite right.  So i thought like the guy below that i had to upgrade the software to 2.5.  I upgraded the software to factory settings and i have no old patches (clean slate).  I can play on the clean channels with no hum, but any gain patch causes the problem below.  I talked with a nice rep today from line6.  I can take it to get the parts replaced one at a time.  He suggested i try a hum eliminator from EBTECH HUM-x.  I will try a few things first but otherwise this is gonna cost me to repair.

Thanks for any input.

Hum/Noise in Vetta with Gain Patches, more notable w/ muting

This question has been Answered.

Ok, so I own 2 vetta I combos,  with ver 2.5 .  I run 1 out as a gigging amp and one stays in a rehearsal room. I run direct in stereo to the PA.  I have been having a phantom noise that will sometimes be minor, sometimes severe.  When not playing, it will turn into a buzz/hum, When playing It almost emulates a decaying reverb, as a hum noise with a high freq "ring" at the end especially when you mute a phrase..  Its most prevalent in the gigging amp, but is faintly recognizeable in the other amp as well.  It became a real problem at the last gig.  I have spent A LOT of time reading threads around here and the old forum and have attempted basically every"fix" i read to no avail....

I have troubleshooted out the following :

Its NOT an effect, as it exists in the most bare form of a patch.

(turning all effects off lessens the noise, but thats simply due to the overall affect on the chain, its still present with all off)

Its NOT related to MONO or Stereo operation

Its NOT a Guitar , pedal, or cable.

Its NOT a supply issue (tried conditioners line cords etc)

Its NOT related to a FBV board or cable

Its NOT Cabinet model related

Its NOT speaker cab related

Its NOT related to Half/Full Power, or Loudness or Presence or Gain settings in SYSt Setup

Even with Gate Threshold at -55db (which REALLY chokes sustain, even out of a Les Paul ) and a 1ms release, its still present, like the gate can't close fast enough.

Taking it down to -30 will make it go away, but thats masking a problem, not fixing one, and its unplayable at that setting

I've done the "reflash"..... nice hope, doesnt fix anything.

Is there a real fix for this problem that someone has?

Next question if the answer is "No"..... does anyone know if the X3 Live has this issue?  Is it just in the models of high gain amps?  I am all about simplicity when it comes to gigging, and the Vetta SHOULD be that, but its really starting to **** me off with the uncontrollable noises.  Is the X3 a better product, anyone?  I need something that isnt going to be a sound quality issue at gigs.

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