0-10 hrs sounded great, 10-90 hrs OK, 90-100 hrs constipated, 100 hrs shrill and no bass, 140 hrs marvelous. The bass depth, weight, and definition are outstanding.
I currently have only one MA3 cable between the VAC pre and the W4S amp in XLR termination. I am so impressed I have ordered more MA3's. This time I spent extra for the burn-in service. My other cables sound broken compared to the MA3.
I should receive the others next week.