I've got mine No.35 but have the problem
When I switch to Lead ch. by Footswitch there is a very loud pop sound
at first I ask Tworock They said "It's might from the design of the amp"
but after the I got the clip from youtube
http://www.youtube.com/watch?v=tlCMdsbvhS0
http://www.youtube.com/watch?v=-gNYZ1iD9cI
you can see when the guy change Ch. by foot switch both clip
there is no Pop sound at all. (it's 50w)
after tworock got the clip they said just return the amp to US (I'm in Thailand)
after I wait for about a month they sent it back
But
The pop sound is still there and they said it's normal the Pop is from their design !!!!
What should I do ?
How is your 10th 50w
Is there any problem ???
Thx
Sorry for Poor English.