Chet, the Emotiva claim re the M80 impedance has always struck me as a rather nonsensical attempt to justify themselves. Regardless of whether the impedance around 10Hz would be about 2 ohms, that couldn't affect normal operation in the way that some have experienced. First, there's essentially no normal program material down there, and even if there was, the M80 would be so far down at that point(on the order of 30dB down)that the amount of power used would be very low. An impedance of that magnitude can't itself cause a problem; it's a combination of low impedance and high power that could cause a shutdown.
