Hi turbo16v,
As JohnK and others have pointed out this is pure BS. In fact, the M80 is a relatively easy 4-ohm load. I have said all along that Emotiva has a problem with its amplifiers and 4-ohm compatibility--whether that's due to inadequate current in the Emotiva power supply or wonky protection circuitry is unknown.
One thing is certain: Emotiva's engineer called Tom Cumberland, Axiom's chief R&D engineer, and acknowledged that there was a problem in the Emotiva XPA-2's protection circuitry and that he thought it could be solved.
If one closely examines the M80 impedance curve, it is much closer to a 5-ohm impedance. The curve is quite smooth and only touches 4 ohms at a couple of points in the spectrum. Much of the time, the impedance is well above 4 ohms.
If the M80 was a difficult 4-ohm load, why is it that entry-level $300 Denon and Sherwood Newcastle AV receivers can drive the M80s to loud, clean playback volumes with no shut-down or problems?
Regards,
