Currently Being ModeratedJan 21, 2013 4:04 PM (in response to gameovergt)Re: Line 6 Spider IV 75 watt
I can suggest that you try putting a small piece of tape over the volume knob after you get the volume you want,
then see if it creeps up or down, if so, then it is a problem with the cpu in your amp, or short in the volume control,
if it does nothing, then it may be moving from vibrating. i really do not like the light touch of these knobs,
i wish they made them more resistant to turn.
Currently Being ModeratedJan 23, 2013 8:21 AM (in response to gameovergt)Re: Line 6 Spider IV 75 watt
Let me ask something here. Does this volume change happen after you've played, while you are playing? Or, does this happen when you turn ON the amp? (The amp will be really loud when you first turn on)
If it's the latter, this is what each of my amps have done, change presets or 'jiggle' the master volume.
In any case, make sure you connect to your computer, through a board, and get your updates.