Had an issue the other day playing a festival where my rig dropped significantly in volume during a set. I haven't had this issue in the past. Luckily our sound guy was able to boost me in the main but still a concern.
Signal Chain: Guitar > T.C. Electronic Polytune > Boss NS-2 > Pod HD500 >Crown XLS 1000 (running Input Y/Bypass into 2 cabs)
What happened: Was playing fine at a normal volume, after a song I used my Polytune to tune. When I turned my tuner off my volume had dropped significantly. I don't believe it has anything to do with the tuner or NS-2 causing a sudden volume decrease as my tone was still the same (as I use the Pod as an amp modeler) all I had was a level drop.
Is this an issue with the Pod? I updated firmware about 2-3 months ago but I will be updating tonight and will be downsizing to one cab which will hopefully resolve the issue but I was curious if this is a known issue with the Pods.