Audioquest’s Diamond USB
Audioquest formally released their current top-of-the-line reference USB cable at CES, the Diamond USB ($650/1.5m). The cable’s conductor is solid-core, perfect-surface silver (100% silver).
A key feature of the Diamond USB, which is held in the photo by Audioquest’s Andrew Kissinger, is the Audioquest DBS (dielectric bias system). Invented and patented by Richard Vandersteen, with the cable version co-patented by Vandersteen and Audioquest’s Bill Low, the DBS creates an electrostatic field that saturates and polarizes the molecules of the insulation to minimize energy storage in the dielectric. The result is claimed to be much greater dynamic range, lower background noise, and reduced phase distortion.
Steve Silberman, VP of Marketing, explained that all insulators have capacitance. Energy from the conductor enters the insulation and needs to discharge. The DBS’ electrostatic field lowers the discharge, which in turn lowers the amount of phase distortion and makes for a cleaner signal.
In a very short demo, Silberman compared music through a stock USB cable that came with his printer to music through the Diamond. Using the new Arcam R asynchronous USB DAC, Arcam AVR 600 receiver, AQ Niagra interconnects ($1600/1m pair), AQ Redwood speaker cables ($2300/3ft pair), and Vandersteen 2Ce 30th anniversary edition speakers, the difference in transparency and color was striking.