A newbie question here. Just bought the as50d amp and I'm a bit lost with the effects controls on it. So here's the thing that's bothering me, does the switches for channel one and two also control reverb or is reverb always on if the control nob is turned on of course. It is always on my amp if the nob is turned, even when non of the channel switches aren't pressed. Should it be like that that or is it something wrong with the amp? So should the channel switches next to chorus also turn on or off the reverb or not?