If you have the manual, just follow the instructions for load impedance adjustment. Ideally, if your APM-1 is rated 4 ohm, then the Power 2 should also be set at 4 ohm. Won't hurt to experiment, however, it's not like changing cables from terminal to terminal...you gotta' go under the 120lb amp and remove all them SCREWS!!
need help with impedance on SF power 2
I just get a Sonic Frontier power 2 and Genesis APM-1. On the manu, APM-1 impedance is 4 ohms and I am not sure what is the normal impedance for power 2. Is all SF power amp @ 8 ohms. I read on the manu said I have to make sure impedance match with speaker. What effect if I have 8 ohms on the amp and 4 ohms on the speaker? I felt like I need to turn up the volume quite high in order to get a good sound level. BTW, the APM-1 is 90db sensitivity.