One final check:
Go to your electrical panel and turn off everything except your hi fi gear.
This will make sure you didn't miss something inside that is causing the noise. If the noise is still present then it is external, either from RF/EMI or elsewhere in the building.
Best,
E
Go to your electrical panel and turn off everything except your hi fi gear.
This will make sure you didn't miss something inside that is causing the noise. If the noise is still present then it is external, either from RF/EMI or elsewhere in the building.
Best,
E