waterboard
- Dec 18, 2016
- 5
- Joined
- Dec 18, 2016
- Messages
- 5
Hi I've looked for assistance on this on AudioKarma but am still stumped. Hope someone here can help!
Out of nowhere I've recently started hearing a high pitched noise in all channels in my audio receivers and anmp, sounding a bit like Cell Phone interference of yore ... a faint squealing noise a bit like a dot matrix printer. I've subsequently plugged in various solid state receivers including a Marantz 2230, Marantz 3330 + 140 preamp/amp, Pioneer SX 780 and an EICO HF-81 tube amp through different speakers, different power outlets and different rooms and am getting the same noises through all in varying degrees. The sound increases with turning up the volume, and listening in the preamp stages. I have a Sonos system running as well but do not hear the sound in these speakers (I've also disconnected this system to determine if it was causing the issue)
I recorded the sound at a loud volume through the phono stage here
LISTEN:https://www.dropbox.com/s/21uk4b2jc4...rence.m4a?dl=0
Cleaned the pots/connections as advised, no luck.
I've disconnected wi-fi routers, power strips and any lights that might be causing this but the problem persists. I live in an apartment building in NY. The problem started a few days ago and my neighbor has cited a strange noise in his clock radio - not sure if there's a relation. There are also somewhat new cell towers in the neighborhood but I can't imagine these are the issue.
Any other ideas to help diagnose?
Out of nowhere I've recently started hearing a high pitched noise in all channels in my audio receivers and anmp, sounding a bit like Cell Phone interference of yore ... a faint squealing noise a bit like a dot matrix printer. I've subsequently plugged in various solid state receivers including a Marantz 2230, Marantz 3330 + 140 preamp/amp, Pioneer SX 780 and an EICO HF-81 tube amp through different speakers, different power outlets and different rooms and am getting the same noises through all in varying degrees. The sound increases with turning up the volume, and listening in the preamp stages. I have a Sonos system running as well but do not hear the sound in these speakers (I've also disconnected this system to determine if it was causing the issue)
I recorded the sound at a loud volume through the phono stage here
LISTEN:https://www.dropbox.com/s/21uk4b2jc4...rence.m4a?dl=0
Cleaned the pots/connections as advised, no luck.
I've disconnected wi-fi routers, power strips and any lights that might be causing this but the problem persists. I live in an apartment building in NY. The problem started a few days ago and my neighbor has cited a strange noise in his clock radio - not sure if there's a relation. There are also somewhat new cell towers in the neighborhood but I can't imagine these are the issue.
Any other ideas to help diagnose?