I am looking for new speakers and like RBH’s SV661 and SV661C but noticed they are 6 Ohms and my amp (Emotiva XPA Gen 3) is 8 Ohms. Is this compatible or do I need to select different speakers. I know that RBH SV61 are 8 Ohms but the SV 661C is still 6 Ohms. I am not sure if any of these choices work. Any recommendations?