I have had similiar problems and unfortunately the only solutions are to either turn off the equipment or trade it in for something does not spray around RFI. There are some decent dacs, cd players and transports that do not emit a lot of RFI. Using filters and shields did nothing for me but waste my time and money. This is one of the reasons I will not buy any digital device without a right of return.
DAC RFI, creates noise for tuner
Help!!! I have a Audio Alchemy ULtraDAC, Monarchi DIP anti jitter device and a Denon analog tuner as sources. The digital devices seem to detune my tuner and create much noise on the lower frequencies of the FM band. The only stations I listen to is an NPR station had that end of the FM band, I have had the tuner realigned several times, have used RF chokes on power cords, all to no avail. Turning off the digital sources does help but I'm tired of unplugging my digital sources when I listen to FM. Any solutions?