Dmailer, thanks for your reply. In fact, I am using AZ Matrix reference IC between Krell 300i integrated amp and Sony 777ES. I am also using AZ Hologram biwire for B&W N805. AZ Matrix Reference replaced Transparent Music Super XL version. Compared with Transparent which is very lifeless and flat, AZ matrix wrought substantial differences in my system. Music takes on three-dimensionality, layering, and precise imaging. I can feel or see through a venue where music is being played. So, I am completely satified with the matrix. The reason why I posted this question is that I coud use more air, openness, and transparency. I am not saying that the Matrix is not airy, open, or transparent. It is very good in those aspects, but I could push a little further. I have not tried AZ silver which appears to be as great as Matrix. I heard great things about KS-1030 as well. I might try one or the other in the future.
Did it take a long time to break in AZ Silver reference in your case?