Try hooking up the pre and power amps normally, with the interconnect that would connect to the CDP in it's usual position(but w/o the CDP). Turn up the volume on the pre(Don't touch the interconnect) . Is the radio signal there? If it is: Turn the volume all the way down, remove the CDP interconnect and turn the volume up again. That should tell you if the most likely antenna in your system is the culprit(the CDP interconnect). Second would be the pre itself. Try some shorting RCA plugs, if that's the case. For instance those mentioned halfway through this article: (http://www.sixmoons.com/audioreviews/acousticrevive/ground.html) If you don't want to spend the $275 on those plugs, here are a couple other suggestions: (http://www.cardas.com/content.php?area=products&content_id=7&pagestring=Accessories&product_id=29) Music Direct, Needle Doctor, Audio Advisor and Galen Carol all sell those. Then there's the cheapest route:(http://www.siteswithstyle.com/VoltSecond/Shorting_plug_rca/shorting_plug.html)
RFI in tube system
Hi Folks,
I need help. I recently set up my tube system in my new house and everything was great for a couple of months. Then I started to pick up significant RFI. I can hear a muted radio station coming through my system and static interference. Driving me crazy.
I've been playing around with cables, equipement, etc and found the following: My Shanling SACD player has output levels, so I bypassed the preamp and hooked my CDP directly into my amps. RFI was gone. So it seems that the preamp is the problem. I've switched out my interconnects and power cords and there's no appreciable difference. I've also tried using another outlet with no improvement.
I'm not sure what I'm doing here as I'm not very technologically savvy, so any advice would be appreciated. I've read here about power conditioners. Would they help? Or RFI Filters on my interconnects & power cord? Or is this going to be an expensive hit-or-miss process.
Thanks in advance for any advice.
I need help. I recently set up my tube system in my new house and everything was great for a couple of months. Then I started to pick up significant RFI. I can hear a muted radio station coming through my system and static interference. Driving me crazy.
I've been playing around with cables, equipement, etc and found the following: My Shanling SACD player has output levels, so I bypassed the preamp and hooked my CDP directly into my amps. RFI was gone. So it seems that the preamp is the problem. I've switched out my interconnects and power cords and there's no appreciable difference. I've also tried using another outlet with no improvement.
I'm not sure what I'm doing here as I'm not very technologically savvy, so any advice would be appreciated. I've read here about power conditioners. Would they help? Or RFI Filters on my interconnects & power cord? Or is this going to be an expensive hit-or-miss process.
Thanks in advance for any advice.