jafant -
One reference CD I use to test upgrades is B.L.S. It features Terry Bozzio, Tony Levin and Steven Steven’s. The original production is already excellent but somehow seems to get better each time you introduce a proper upgrade. The X EF has added better tone, timbre and texture. "Book of Hours" is one of my favorites and the system sliced through the rapid fire improvisational masterpiece. The system has very good pace and timing so the X EF is a welcomed addition.
In the past when I’ve introduced other power cables there’s usually a tonal anomaly that stands out like a large bump in the bass or bloom in the midrange. Not the case with the X EF. The tone is very good, balanced and linear across the frequency range. I like what the X EF has done for the Supernait 3 I do anticipate adding another one to the Naim nDAC will be very beneficial.
Other reference discs -
Santana, Shaman, Dirty Shirley, S/T featuring George Lynch and Dino Jelusick, Donald Fegan, Morphin The Cat, Peter Gabriel, UP, Diana Krall, The Girl in the other Room.
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