lonestar popping sound when switched to standby

[dionisis]

Hi everybody,
I ve been reading this forum for a while and it's been great help!
I have been the proud owner of a mesa mark iv and today I bought brand new my lonestar classic head.It's amazing!!
My only concern is that when the 10w option is enabled (no such sound at 50w and 100w) and I switch the amp to STANDBY I hear this annoying popping sound(similar to the sound many have experienced when switching channels)
The head is brand new and sounds superb.Should I worry about that popping sound?
Any help would be greatly appreciated!

 

[Octavarius]

Nope, this is normal. As well as popping when switching between the power settings. It is because the amp is re-biasing itself on the different classes. There was a technical explanation of this somewhere, but I can't seem to find it right now.

Anyway, when removing the hi-volts from the output tubes, it's normal to hear a pop. Mine does it sometimes from 50W/100W; not always, but sometimes there's a bit of a pop. Switching power settings from 50W to 10W usually produces a much louder pop.

However, I don't remember putting it to standby from the 10W setting (I usually use it in 100W), but I figure it's completely reasonable for the amp to produce a louder pop from that setting. Does it pop when you turn it off standby as well (fully on)?

In any case, I wouldn't worry. If the amp sounds good and the power tubes behave well, I'd say that all is well. Generally popping-sounds are concidered normal with these amps. Here a response I received from Marcus Daniel @ Mesa:

The pop that you are hearing is normal, especially when manually
switching the power modes. There will also be a bit of a pop when
switching between one channel on 10 watts and the next channel on 100
watts.

Hope this helps!

 

[dionisis]

Thanks for the feedback!
When the amp is on full power and I put it on standby,there is no sound at all.In general the amp is really quiet.
There is no pop sounds when i switch channels with the foot-switch (I noticed pop sounds though when i manually changed channels),there are no pop sounds when I switch between power modes( from 10 to 50 or 100w).
The only pop sound is when I put the amp to standby (when 10w option is on on both channels), even when the master volume,output etc are turned all the way down.
I know I shouldn't be picky about pop sounds,it's just that i love this amp and i was saving money for quite a while to buy it and I want everything to be right!
thanks for your help!