afg101, Thank you for that information.
I have been experimenting now quite a bit with this grounding method. It is better to separate digital from analog into 2 different grounding boxes. Luckily, I built several DIY boxes that IMHO are better than the Entreq,
What I am hearing is a deeper soundstage. Music that I am way too familiar with such as example: CCR "Green River" perhaps not the best recording but one of my favorite tunes, I can clearly hear brother Tom strumming along in the top left of center quadrant. Previously it was buried in the mix. Also listening to Linda sing "Blue Bayou" is really captivating.
ozzy