The AudioQuest Diamond USB cable is Paul’s pick to run between our server and DirectStream DAC. Perfect Surface Technology is applied to extreme-purity silver conductors to ensure unprecedented clarity and dynamic contrast. Also featured is AQ’s Noise-Dissipation System (NDS), incorporating alternating layers of metal and carbon-loaded synthetics to “shield the shield,” absorbing and reflecting most of the noise/RF energy that would otherwise damage the audio signal before it reaches the layer attached to ground. Getting the noise and jitter levels as low as possible is a critical task for the USB cable in any computer/DAC system. To date, we’ve not found a better combination than Diamond and DirectStream. Openness, musical purity, and an analog-like tonal balance lets music breathe.