At what level were you playing? Try a lower volume setting. It shouldn't go into protect unless it is pretty loud, any amp should be able to do 4 Ohms at lower levels.


But first, check your wiring. It's more likely that there is a short somewhere. Look for one strand out of place on one end or the other.

Second, try one speaker at a time. Just in case there is an internal defect.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris