Vuckovic,
Because of your last posting I decided to give the SCSS Filters another go.
With those filters in place I can hear that there is a better center image for the vocals that is quite nice. But, the treble and the bass is still not as defined and deep.
In fact, I pulled the Nuforce unit out of the system and played my stereo without it. Without the Nuforce units there is a muscular sound that the Nuforce units robbed from the music.
Best I can describe it is, the Nuforce unit makes the music too polite (with or without the filters).
Again, originally I used the Nuforce unit with used Morrow Speaker cables that I had just purchased. My reference Cables (Synergistic Apex) along with the active shielding were disconnected for over a week.
Once I started using the Synergistic cables the defects in the Nuforce unit started to appear.
I am trying to get the dealer to send the other filters to try before I make a final judgement.