I had this machine there is less than a month (ordered from thomann) and already on his arrival there was a loose connection on a jack. After one hour of use, the green LED does not work. Now it fontion rarely.
I wait to receive the new (replacement thomann) to see if it's family or an isolated case.
It's a shame to have problems with this product because it is superbly useful and better than the boss because he a1, a2, b1, b2.
I am disappointed, I have a behringer equalizer pedal format and I have no problems with ...