Tony…I had done an A/B test back when I got my Decware switch box years ago. At the time I remember that I could not find a discernible difference in volume levels or a change in the sound.  Mine is the basic version with the gold connectors.  

For me the best feature is the second set output connectors.  One set of interconnects from my DAC goes to my preamp and the other goes to my subwoofer.  I was unable to use the subwoofer speakers connections due to placement of my Err’s with speaker wires running through my walls as well as the sub interconnects.  Hope this helps.

Dom