How to remove humming noise when another DAC or AVP is connected to MCH-K38 with XLR cables?

Due to the XLR shield and ground pin specification (see, some manufacturers implement it differently from others, therefore there could be humming noise if a non NuPrime product is connected to MCH-K38 using XLR cables.nnXLR Hum Eliminator products from can be used to completely remove the noise and improve performance.