dual rectifier channel switching to channel 2 : bang

[Lucass]

I just wanted to check if this is normal: when i turn my dual rectifier on (1st power , then standby...) and from the moment i switch to channel 2 i hear a bang (quite loud actually) coming out of the amp, even when guitar volume turned of and amp volume turned of... , after the first time i changed the bang doesn't occur anymore. If i am playing for a while and i didn't use my channel 2 for some songs and then i change to channel 2, it is possible that i hear the bang again.
this happens almost every time i use the amp

I wonder if this is normal.
grts Lucas (sorry for bad english)

 

[twothemax]

I just wanted to check if this is normal: when i turn my dual rectifier on (1st power , then standby...) and from the moment i switch to channel 2 i hear a bang (quite loud actually) coming out of the amp, even when guitar volume turned of and amp volume turned of... , after the first time i changed the bang doesn't occur anymore. If i am playing for a while and i didn't use my channel 2 for some songs and then i change to channel 2, it is possible that i hear the bang again.
this happens almost every time i use the amp

I wonder if this is normal.
grts Lucas (sorry for bad english)

yah quite normal for the dual rectifiers. mine does it also. i used to have a 5150 and that did the same.
here is what you can do. power up your amp and leave it in standby mode. with your guitar vol up plug it into the input, and switch through the buttons on your footswitch. do this a couple of times. then take your amp off standby and try. i think it has something to do with power and voltage, but nothing to worry about.

 

[Lucass]

ok, thanks !!