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Phono Hum w/ Pro-Ject Debut III

I am experiencing phono hum with my Debut III. Phono leads are going into my phono inputs in my Sunfire Theater Grand II. I think I am getting AC feedback from cable routing in the back of the system. The ground wire is connected from the TT to the Sunfire. I started moving the phono leads away from the AC lines and the hum has lessened but it is still there. Is there a good way (material) to shield the phono leads without changing out the leads themselves?
epeabs
grinnell
1,102 posts
 
What cart are you using?
epeabs OP
13 posts
 
As far as the cartridge, it is a brand new Ortofon 2M Blue. The hum was present with the old Ortofon OM-5E as well.
sbrownnw
700 posts
 
What interconnects? Did you try some shielded ones?
epeabs OP
13 posts
 
The interconnects are the stock ones that are pre-mounted from the factory on the Debut III. I didn't know if there was a way I could "shield" them myself? without having to install or solder better ones in myself.
epeabs OP
13 posts
 
I just borrowed a Cambridge Audio P640 phono pre amp and I still had hum. I was hoping to rule out that my Sunfire phono pre was the issue. I do notice that when I firmly grasp my phono leads out of the TT, I get an even louder hum. Maybe just crappy leads from the TT?
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