Yes, I started with 3 ElectraClears and 2 Symphony Pros and recently added a Sorcer X4 located at the breaker panel.
The smaller units really, really added a clarity, detail, and musicality that I had thought was improbable if not impossible to attain. I was stunned and listened for longer periods without ear fatigue. The emotional engagement factor is an additional bonus!
The X4 added further improvements to a wider, deeper sound stage. The instruments sound more real and vital. Yes, the longer the unit is plugged in the better the improvement. This, I think, is because the harmonic resonance takes a little time to really kick in and saturate the audio system.
The smaller units really, really added a clarity, detail, and musicality that I had thought was improbable if not impossible to attain. I was stunned and listened for longer periods without ear fatigue. The emotional engagement factor is an additional bonus!
The X4 added further improvements to a wider, deeper sound stage. The instruments sound more real and vital. Yes, the longer the unit is plugged in the better the improvement. This, I think, is because the harmonic resonance takes a little time to really kick in and saturate the audio system.