My Duet did not make much of positive difference until I plugged it using JPS Labs Power AC+. I was using a Signal Cable earlier and I'm sure you just need a bigger cable to back it, no need for an AC+! As a result, it made mids sound bigger, gave depth the stage and somehow made the stage more solid. So, I feel invest in better cords before going the PLC route.
P.S. Audio Quintet? Worthwhile?
I'm hearing that this device would be beneficial for my system. I currently use a Tributary power bar with surge protection. Anyone have thoughts on what difference I could expect with a Quintet? I don't know much about power conditioning. Anything written on it seems to be from 2007 when it was released. This would be for the main system with Aerial speakers, Classe int. amp, Squeezebox Classic 3 and Wyred for Sound Dac 2. Appreciate your ideas.