The 1909 doesn't know what the impedance of the speakers it's connected to is
Can you imagine if they did? Me <-- turns receiver on, leans back to relax and listen to the music receiver <-- " Hey putz, turn me down!! Thats a 4Ohm load. I'm getting hot here..."
Fred
------- Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!