I have had a 7 Plus and a 10 Plus for over a year now and I just added (2) 12 Plus cables and 2 pairs of the Spirit interconnects.
I knew what I was getting with the power cords but for the price of the Spirits, I was not expecting what I'm hearing. My Maggie 3.7i have never sang more happily. The entire range is expanded, low, mid, and upper. Everything is much tighter. I'm really in awe and I shouldn't be knowing Pete's work.
If anyone needs me, I'll be locked in my chambers drooling over my new sound.
~Stunami