Probably a stupid thing. Does anyone know how come when I use rca->1/4 to connect my stuff to Behringer's either Inputs 3/4 or 5/6 -- the right speaker is silent (left is working). However, when I connect the same exact stuff to Behringer's tape input - everything works perfectly? Is there a reasonable explanation? All faders are set in the middle (including the balance fader). I'm pretty sure it's something stupid - it's doubtful that the mixer broke for no reason.