I have borrowed Transparent Audio REF xlr, xl version. This sounds at it's best, with high resolution power chords. If i use a smooth PC, the REF IC sounds too closed in a lose microdynamics and detail. A PC that sounds harsh with my Signalcable Silver ref IC, sounds very good with the Transparent REF IC. However, i feel the Transparent is very controlled, if offers a somewhat closed in sound compared to the Signalcable, but in a good way. Only thing missing, is better microdynamics. Some frequencies, are to low, almost like a dip in some areas. This IC, with better microdynamics, had been the key here. Hm.... these network cables, are to darn expensive. I would like to try MM or MM2 of Ref, but that is so no no no. Maybe i look into MIT. Question is, is it worth it. I find it more interesting, i've not seen IC's made especially for class D amps. That do have a very open sound. As do my loudspeakers. This requires a IC, in my case, that is a bit calmer, a bit closed in on the top. Pair this with a PC that is of highest resolution and it will match very fine.