You can see my current setup in my signature, and just recently have been hearing a noise from my left speaker.
I believe its the tube amp as the noise presents while all inputs are off.
Nothing has changed in my setup for months, and know for sure it wasnt there before...
The attached mp4 was from my phone, and while you may have to crank up the volume to hear during play back is in real life barley audible from 10' away. Within a few feet is very pronounced.
* edit - I moved the microphone from tweeter to mid-range and back and is why there is a change in pitch...
Im wondering what electronic part may make this noise or how to start tracking down the culpret...
I believe its the tube amp as the noise presents while all inputs are off.
Nothing has changed in my setup for months, and know for sure it wasnt there before...
The attached mp4 was from my phone, and while you may have to crank up the volume to hear during play back is in real life barley audible from 10' away. Within a few feet is very pronounced.
* edit - I moved the microphone from tweeter to mid-range and back and is why there is a change in pitch...
Im wondering what electronic part may make this noise or how to start tracking down the culpret...
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Shorten the input on that channel (by soldering a piece of wire at the connector or using a shorted male RCA,whatever).This should help in determining if it's an amp issue or an external interference of some kind.
The noise reminds me a DECT cordless phone interference. The DECT frame is transmitted continuously and at higher power compared to other RF domestic sources such as Wi-Fi or computer/phone chargers. To rule out external RF interference, try moving the amplifier to another place and power it from a different electrical outlet.
That could very well be interference from some kind of external device like a wifi router, phone, etc.
my own amp was making a terrible noise and turned out to be miley cyrus singing.
seriously, you need to screen input signals and make sure first stage has rf filter.
if you can screen enclosure and connect it to earth.
seriously, you need to screen input signals and make sure first stage has rf filter.
if you can screen enclosure and connect it to earth.