Purchased midrange Morrow interconnects, speaker and sub cables over about a 6 month period and breaking them in has been ongoing for a while. Got the interconnects for DAC, preamp and amp first- much improved after 200 hours, awesome after 300.The speaker and subwoofer cables have seemed to settle in a bit quicker.. Morrow’s up front about break in and they were certainly correct. I realized break in is a thing when I started using some tube gear some years ago.
