2. cables
  3. 1019837423

Best Cable for canceling RFI

Problem:
WAY too much rfi interferance from local broadcast FM radio signal.

System:
Jolida 302a Integrated Amp, Castle Acoustice Richmonds, Rega Planet 2000 CDP, Kimber 4pr speaker cable. DIY power cable.

I have tested everything and all interconnects disconnected

I am getting an identifiable signal from a local FM radio broadcast - 91.5 Brooklyn New York - SUNY rebroadcast of foreign radio - when nothing but my amp plugged into the outlet.

I build my own power cable - Shielded Belden Cable with Shurtere IEC and Marinco Hospital grade wall plug. I grounded the shield at the wall plug end.

I was listening last night and it's driving me mad!

How to fix? New power cable? w/RFI canceling? Will it REALLY make a diference? Will 'power conditioning' help? Like an 'on-line' UPS?

Much thanks in advance for you thoughts.
keithcady

Showing 2 responses by keithcady

keithcady OP
17 posts
 
FWIW I did the test of disconnecting all IC's at the amp not the source. I switched the power cable from one outlet to another.
I do seem to have more noise from the speaker nearest the outside wall.
My question is - If the sound is not amplified by the amp (volume knob has no impact) is it likely that the speaker wire is the problem?
are ferrite rings on the speaker cables a possiblity?
keithcady OP
17 posts
 
This is making more sense to me as well.

I just replaced all of my pre-amp tubes and the situation seems to be worse. I got rid of the 'junk' Chinese tubes that everyone says I should throw away and replece them with military grade Mullards and Phillips. I'll go back and change them again. Is a copper cage the answer?

I designed a recording studio once in Brooklyn (as and Architect not a sound engineer). due to proximity to the World Trade Center and the Radio Frequencies emmitted therefrom we shielded the whole studio with coper paint and put a copper mesh grid in the air space of the double pane windows.

Thanks Marakanetz, Sean and Seandtaylor99 for saving me the cost of more power cables for nothing.
More to discover