Reducing Noise Floor on Kliche Mini

[Dirty_Boogie]

My recent Kliche Mini has a higher noise floor than I'd like. It's definitely not bad, but the noise/hiss/hum is there, starting from about 10 o'clock. Which components would likely be the main culprit of noise? I know it's likely a combination of components, but without replacing/rebuilding the whole board, would, for example replacing all the electro caps with high-end audio grade caps likely make a significant difference? Or source a different charge pump, etc...?

Thanks.

 

[nkt$275]

I am new so take my response with at a grain of salt … the size of Utah !
I would start by running your Kliche off a battery.
Your noise could be a dirty power supply.

 

[jesuscrisp]

Is your enclosure grounded? Can you post pictures of what parts you're using exactly?