1st DIY: My own sub cable: Hummmm (1 Viewer)

[DanielKellmii]

OK, I went to radio shack, I got some connectors. The kind that don't require soldering. I came home and realized that I didn't have enough wire, so I split some monster cable down the middle and twisted and then crimped them together. Now I have one long wire. I attached the connectors and then the sub.

Hummmmmmmm

A big hum is what I got.
What did I do wrong?

 

[Wayne Ernst]

It could be an issue with the shielding. Maybe, where you combined the cables? Was there ever a hum before?

 

[DanielKellmii]

THere was never a hum before.
I did this late last night, after I put the wife and kids to bed. This may be a stupid question, but does the subwoffer cable need to have two wires? I just have one, I didn't attach anything to the ground hole. I will fix this tonight. I found the original wire that came with the system. It should be good for this little experiment.
What do you think of 22 gauge wire for a subwoffer?

 

[AllanRW]

http://members.rogers.com/viperoni/A...le1/index.html

Rudy di a very good job explaining what you have going on here.
It comes down to a ground loop issue.
Read his page and you will find your mistake.

Al

 

[Wayne A. Pflughaupt]

This sounds like you’re using speaker cable. You’re not using speaker cable to feed RCA jacks, are you? If so, there’s your problem. You have to use shielded cable for a line-level run.

Regards,
Wayne A. Pflughaupt

 

[DanielKellmii]

Thanks guys that helps a lot.