Hum from Delta66 to chipamp

[JohnnyP00]

Hi I just built a chipamp and wanted to hook it up to my PC but am experiencing a loud hum. It only exists when I hook up the cable from the delta66's outs to the input on the amp. Otherwise everything is silent. i think the delta outs are balanced 1/4 inch and the inputs on the amp are rca. Does this have anything to do with this. Is there any way to rectify this problem easily... Thanks JohnnyP.

 

[Sangram]

Use a TS connector instead of a TRS. The Delta66 uses a floated output for the cold end, and can be safely grounded. In my case, it's best not used at all. You also may have a ground loop - it's important to connect the mains power of the chipamp and the PC on the same power outlet.