Audioboxer
New Head-Fier
Here is a conundrum to throw the cat in amongst the pigeons. The Kanto YU4 which I still have on my desktop as I'm quite enjoying them here for now started to display loud audio buzzing/humming when I booted up a game and my 2080Ti kicks in (high power draw card). This is with optical out from my PC, phono out from the Fostex.
In order to clean this up I tried running optical out from the Fostex to the Kanto YU4 as unlike my other powered speakers this has an optical in. Clean as a whistle, even with a game running and my 2080Ti buzzing away lol (I have a watercooled setup so next to no fan noise lets me hear the coil whine off my 2080Ti).
Is it possible to run optical in to a DAC but still end up with interference over the phono out if there is a grounding issue/something nearby causing interference? I was running phono out to my other speakers over optical and had no issues, but maybe these Kanto speakers are a bit more sensitive.
The interesting thing about this buzzing from the speakers is it stops if the game is quit. Suggesting it's my 2080Ti causing it when the PC is drawing a lot of power. Even more interesting is I can pull the optical cable from the Fostex and the buzzing remains! It goes away when the game is quit. This has me thinking is this because of my wall power adapter the PC and Fostex are plugged into???
Heading under the desk to do some plug management/testing.
edit: LOL, this was a grounding issue with the speakers alone because they were plugged into the same outlet as my monitor. Once my monitor was outputting at 144FPS (drawing more power), it got the speakers buzzing This is why using optical in on the back of them had no noise. That doesn't solve the Fostex speaker pops over USB, but it shows not to plug speakers into this outlet (these speakers are just normal kettle plug).
edit2: OK, Kanto Speakers plugged into another outlet in this room (it's own plug, not an extension or the same plug as PC is hooked up to), still get buzz when my monitor is running at 144Hz/FPS. This is with NO audio playing at all (USB/optical input disconnected from Fostex, only phono out cables connected between speakers and Fostex). If I turn my monitor off the buzz pretty much stops or goes super faint. I'm no electrician but this suggests to me this whole room the outlets are in will be on the same loop causing interference as and when my PC draws a lot of power (2080Ti running/monitor at 144hz). Going to take the Fostex out of here and experiment with my laptop and these Kanto speakers in another room. Out of the 3 powered pairs I have they are the only ones reacting like this when my monitor is on.
edit3: Bingo, isolated both the Fostex and Kanto speakers on their own outlets in this same room and that gets rid of the humming and buzzing when a game is loaded up. Just back to the issue I've always had, the loud pop noise out of one speaker when audio is stopped for a second and starts up again (easiest way to reproduce is the youtube slide).
In order to clean this up I tried running optical out from the Fostex to the Kanto YU4 as unlike my other powered speakers this has an optical in. Clean as a whistle, even with a game running and my 2080Ti buzzing away lol (I have a watercooled setup so next to no fan noise lets me hear the coil whine off my 2080Ti).
Is it possible to run optical in to a DAC but still end up with interference over the phono out if there is a grounding issue/something nearby causing interference? I was running phono out to my other speakers over optical and had no issues, but maybe these Kanto speakers are a bit more sensitive.
The interesting thing about this buzzing from the speakers is it stops if the game is quit. Suggesting it's my 2080Ti causing it when the PC is drawing a lot of power. Even more interesting is I can pull the optical cable from the Fostex and the buzzing remains! It goes away when the game is quit. This has me thinking is this because of my wall power adapter the PC and Fostex are plugged into???
Heading under the desk to do some plug management/testing.
edit: LOL, this was a grounding issue with the speakers alone because they were plugged into the same outlet as my monitor. Once my monitor was outputting at 144FPS (drawing more power), it got the speakers buzzing This is why using optical in on the back of them had no noise. That doesn't solve the Fostex speaker pops over USB, but it shows not to plug speakers into this outlet (these speakers are just normal kettle plug).
edit2: OK, Kanto Speakers plugged into another outlet in this room (it's own plug, not an extension or the same plug as PC is hooked up to), still get buzz when my monitor is running at 144Hz/FPS. This is with NO audio playing at all (USB/optical input disconnected from Fostex, only phono out cables connected between speakers and Fostex). If I turn my monitor off the buzz pretty much stops or goes super faint. I'm no electrician but this suggests to me this whole room the outlets are in will be on the same loop causing interference as and when my PC draws a lot of power (2080Ti running/monitor at 144hz). Going to take the Fostex out of here and experiment with my laptop and these Kanto speakers in another room. Out of the 3 powered pairs I have they are the only ones reacting like this when my monitor is on.
edit3: Bingo, isolated both the Fostex and Kanto speakers on their own outlets in this same room and that gets rid of the humming and buzzing when a game is loaded up. Just back to the issue I've always had, the loud pop noise out of one speaker when audio is stopped for a second and starts up again (easiest way to reproduce is the youtube slide).
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