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Hearing a HUM using audio cable

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Old 12-17-2012, 09:24 AM   #1
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Default Hearing a HUM using audio cable

Hello. I bought the cable in the image from Monoprice and it works fine when connected to my TV from my PC sound outlet, but when I have it connected to my Sony House Stereo, I hear a HUM in the speakers. I have a short Y cable plugged into the sound card and have my PC speakers connected to one side and this cable to the other side. I hear this HUM when my stereo is on and I'm viewing a movie using Media Player Classic or when listening to music using JetAudio. When I turn off my house stereo, I still hear this hum and it only goes away when I disconnect this cable from the Y adapter.

So my question is; is there anything I can do to get it to not HUM? Is there a noise suppressor or something else that can I buy to get rid of it?

My house stereo is old, I bought it in 1990 so it's not digital in any way that I know of, if that matters. It's all listed in my sig if needed.

Hopefully someone here can tell me what I need to do for this because I'm not sure and usually, the local Radio Shack worker doesn't know squat about electronics and wouldn't be able to help.

Thank you,

Tattoo

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Panasonic VIERA TC-P42G25 42-Inch 1080p Plasma HDTV
Sony Stereo 1989 5 Components ' Amplifier TA-AX390 ' Receiver ST-JX390 ' Turn Table-PX-LS110 ' Dual Cassette Player TC-W390 ' 5 Disc CD Changer CDP-C401 ' Speakers SS-U530
Sony 5 Disk CD/DVD Player DVP-NC665P
Dell Studio 540 ' Intel Core 2 Quad CPU @ 2.33GHz 2.34 GHz ' RAM 8 GB ' System Type 64-bit ' C:\ 300 GB ' D:\ 700 GB ' DVD Burner ' 24" Dell Widescreen ' 20" Dell Widescreen ' Speakers 2
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Old 12-17-2012, 09:35 AM   #2
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A hum in speaker cables is usually due to grounding issues or a ground circuit loop. If would try using a 3 prong to 2 prong adapter on the equipment that it is connected to (The Sony System) and see if that remedies it.
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Old 12-17-2012, 02:20 PM   #3
High Definition is the definition of life.
 

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Quote:
Originally Posted by jkkyler View Post
A hum in speaker cables is usually due to grounding issues or a ground circuit loop. If would try using a 3 prong to 2 prong adapter on the equipment that it is connected to (The Sony System) and see if that remedies it.
What is a 3 prong to 2 prong adapter and how would I connect it to The Sony? It only excepts the one type. The single plug goes into the sound card and the other 2 go into the stereo so I don't understand how it would work. Can you explain a little more?

Thanks,

Tattoo
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Panasonic VIERA TC-P42G25 42-Inch 1080p Plasma HDTV
Sony Stereo 1989 5 Components ' Amplifier TA-AX390 ' Receiver ST-JX390 ' Turn Table-PX-LS110 ' Dual Cassette Player TC-W390 ' 5 Disc CD Changer CDP-C401 ' Speakers SS-U530
Sony 5 Disk CD/DVD Player DVP-NC665P
Dell Studio 540 ' Intel Core 2 Quad CPU @ 2.33GHz 2.34 GHz ' RAM 8 GB ' System Type 64-bit ' C:\ 300 GB ' D:\ 700 GB ' DVD Burner ' 24" Dell Widescreen ' 20" Dell Widescreen ' Speakers 2
Windows 7 Ultimate 64-bit
Nikon CollPix L22
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Old 12-17-2012, 02:34 PM   #4
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Quote:
Originally Posted by Tattoo View Post
What is a 3 prong to 2 prong adapter and how would I connect it to The Sony? It only excepts the one type. The single plug goes into the sound card and the other 2 go into the stereo so I don't understand how it would work. Can you explain a little more?

Thanks,

Tattoo
I'm talking about the power plug where you plug it into the wall
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HT- Panasonic TH-50PZ800U 1080p plasma, Panasonic PT-AX200u LCD projector, Elite Vmax Electric 100' screen, Pioneer Elite SC-71 AVR, Paradigm Titan Monitor v5 fronts, Paradigm CC-190 v6 center, Paradigm Atom Monitors v5 surrounds(x4), HSU research VTF-2 sub, HTPC/Gaming rig, Sony BDP-S550 blu-ray, Uverse HD-DVR, Roku 2

Bedroom: Insignia NS-lcd26, Samsung BDP-1400 blu-ray
Den - Vizio 20" 1080p LCD + Samsung BD-p1600


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Old 12-17-2012, 03:35 PM   #5
High Definition is the definition of life.
 

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Quote:
Originally Posted by jkkyler View Post
I'm talking about the power plug where you plug it into the wall
Oh, the power cord. You didn't say that and I thought you meant the plugs on the audio cable. Hmm. The stereo plug doesn't have 3 prongs tho nor does my TV so would it still might help? I could try it if you think it'll help.

Thanks,

Tattoo
__________________
Panasonic VIERA TC-P42G25 42-Inch 1080p Plasma HDTV
Sony Stereo 1989 5 Components ' Amplifier TA-AX390 ' Receiver ST-JX390 ' Turn Table-PX-LS110 ' Dual Cassette Player TC-W390 ' 5 Disc CD Changer CDP-C401 ' Speakers SS-U530
Sony 5 Disk CD/DVD Player DVP-NC665P
Dell Studio 540 ' Intel Core 2 Quad CPU @ 2.33GHz 2.34 GHz ' RAM 8 GB ' System Type 64-bit ' C:\ 300 GB ' D:\ 700 GB ' DVD Burner ' 24" Dell Widescreen ' 20" Dell Widescreen ' Speakers 2
Windows 7 Ultimate 64-bit
Nikon CollPix L22
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Old 12-17-2012, 05:57 PM   #6
High Definition is the definition of life.
 

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Age: 52
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I found out that the power cord for my TV does have 3 prongs I tried the adapter on it and it still HUMs. I didn't think the TV hummed too because it wasn't as noticeable, but it does and the adapter doesn't help. So it has to be something else. Maybe I could try changing the outlet unless someone else has a better thing to try.

Thanks,

Tattoo
__________________
Panasonic VIERA TC-P42G25 42-Inch 1080p Plasma HDTV
Sony Stereo 1989 5 Components ' Amplifier TA-AX390 ' Receiver ST-JX390 ' Turn Table-PX-LS110 ' Dual Cassette Player TC-W390 ' 5 Disc CD Changer CDP-C401 ' Speakers SS-U530
Sony 5 Disk CD/DVD Player DVP-NC665P
Dell Studio 540 ' Intel Core 2 Quad CPU @ 2.33GHz 2.34 GHz ' RAM 8 GB ' System Type 64-bit ' C:\ 300 GB ' D:\ 700 GB ' DVD Burner ' 24" Dell Widescreen ' 20" Dell Widescreen ' Speakers 2
Windows 7 Ultimate 64-bit
Nikon CollPix L22
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Old 12-18-2012, 04:51 AM   #7
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Posts: 11,562
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Try using it on your stereo plug even though it is only two prongs. Every 'hum' I have ever heard or heard of has been a ground loop issue.
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HT- Panasonic TH-50PZ800U 1080p plasma, Panasonic PT-AX200u LCD projector, Elite Vmax Electric 100' screen, Pioneer Elite SC-71 AVR, Paradigm Titan Monitor v5 fronts, Paradigm CC-190 v6 center, Paradigm Atom Monitors v5 surrounds(x4), HSU research VTF-2 sub, HTPC/Gaming rig, Sony BDP-S550 blu-ray, Uverse HD-DVR, Roku 2

Bedroom: Insignia NS-lcd26, Samsung BDP-1400 blu-ray
Den - Vizio 20" 1080p LCD + Samsung BD-p1600


Don't believe everything you read on the internet - Albert Einstein
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