Hum from Delta66 to chipamp

JohnnyP00 · 28th August 2009, 04:57 PM

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 · 7th September 2009, 07:12 AM

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.

28th August 2009, 04:57 PM	#1
JohnnyP00 diyAudio Member Join Date: Nov 2007	Hum from Delta66 to chipamp 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.

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7th September 2009, 07:12 AM	#2
sangram diyAudio Member Join Date: Sep 2002 Location: India	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.

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