I agree that the iFi line is pretty good, and it’s cost effective.
I am not sure that a better power supply on the router will make a difference for you. I’d be sure that you can return it if you don’t hear a difference.
Another approach to this would be an Ethernet isolator like the ones made by EMO Systems. I bought one in a flush of audiophile enthusiasm, but I’ve got to say, I don’t hear the difference. I’ve kept it for its surge protection.
I am not sure that a better power supply on the router will make a difference for you. I’d be sure that you can return it if you don’t hear a difference.
Another approach to this would be an Ethernet isolator like the ones made by EMO Systems. I bought one in a flush of audiophile enthusiasm, but I’ve got to say, I don’t hear the difference. I’ve kept it for its surge protection.