Just received my new Yamaha RX-V3800 and my Axioms and noticed that the tweeters on at least one of the M-80s were producing distinctly different sounds. I haven't had time to do any extensive testing yet but this effect was very clearly audible while playing 2-channel music. My impression was that the same portion of the audio stream was sent to each of the two tweeters within a single cab, is this not the case?