Yeah these are stable at 4 Ohms. I guess my final question is it worth even getting an amp since they’re pretty good amps on their own even though they’re AVR’s?\n\n\nWhat does your ear tell you? Do you hear distortion? Is your receiver running hot? \n\nIf you don't hear distortion and the receiver is running fine then why change it? Audiophiles have a tendency to continually upgrade and we don't always know when to simply appreciate what we have.