Amp weird noises

[john11]

Hi And thanks for reading. The problem i am having is that whenever i connect my amp to any sound source equipment which uses rca connectors for the sound output, the amp works fine.

Connected the amp to the Asus H170I-PRO motherboard which uses 3.5mm jacks for the sound output and i am getting crackling, static nosies I mean it is bad, really bad massive distortion.

I thought that since the outer shielded / braided screening cable of a stereo 3.5mm jack cable are connected together ( and rca's are not ) there may be some ground loops developing.

Is there a cure for this. Have you read anything or experienced anything of this nature. Is it ground loops? Do some amps just not like 3.5mm jacks. What should my next move be.

When i plug in headphones there is no noise. Also borrowed my neighbours amp and also no noise problems arose. Seems to be a problem specific to some amps.

Have just purchased a ground loop isolator and am waiting delivery.

If am forced to change motherboard do you know of any with rca connectors for the audio, more of a high end board.

Thanks.

 

[Ponzio]

Hi And thanks for reading. The problem i am having is that whenever i connect my amp to any sound source equipment which uses rca connectors for the sound output, the amp works fine.

Connected the amp to the Asus H170I-PRO motherboard which uses 3.5mm jacks for the sound output and i am getting crackling, static nosies I mean it is bad, really bad massive distortion.

I thought that since the outer shielded / braided screening cable of a stereo 3.5mm jack cable are connected together ( and rca's are not ) there may be some ground loops developing.

Is there a cure for this. Have you read anything or experienced anything of this nature. Is it ground loops? Do some amps just not like 3.5mm jacks. What should my next move be.

When i plug in headphones there is no noise. Also borrowed my neighbours amp and also no noise problems arose. Seems to be a problem specific to some amps.

Have just purchased a ground loop isolator and am waiting delivery.

If am forced to change motherboard do you know of any with rca connectors for the audio, more of a high end board.

Thanks.

The ground loop isolator should resolve your issue. I had the same problem when I initially connected my PC' 3.5m out to the amps RCA input.

 

[john11]

Thanks. I will update when the isolater arrives, should be tomorrow.

If i need to replace the mobo with one that has rca sound outputs, can you recommend such a mobo.

Or do you think that mobos have a lot of noise, ( i have heard a lot about this ) , and that trying to get good sound quality out of a mobo is a bad idea in the first place.

Maybe i should try a streamer with 5.1 analog ouput.

Or perhaps a bluray player.

What do you think.