I started believing in cables after experimenting with I2S cables literally a year ago. I tried $5, $30, and $300 I2S cables and was convinced that they do make a difference—sometimes a big difference. Over time, I also upgraded analog cables and other digital cables as well. So far, the only cable where I have not been able to detect any difference is the power cord.
The other almost an exception is the USB cable. Except the Cardas Clear USB (too warm leading to soft bass), I could not detect any meaningful difference between the stock USB (from IFi, Schiit etc), $10 Benchmark usb and $300 DH Labs Mirage usb cable. Beyond that price point, I am not willing to try even I could afford.

