I'm not familiar with the Supernait,but if you can hook both up at the same time,(analog and digital outputs from the 840c)
then you could A/B them easily.To be safe turn the volume down
before switching between analog and digital inputs.Using an auxiliary input for the analog may make it easier to do a A/B comparison.♫
then you could A/B them easily.To be safe turn the volume down
before switching between analog and digital inputs.Using an auxiliary input for the analog may make it easier to do a A/B comparison.♫