Silver-Plated Copper (SPC) always provides superior performance for video and digital audio. Unfortunately, when used for full range analog audio, the discontinuity of plating silver over copper causes high frequencies to sound edgy and harsh. However, when used only for subwoofer frequencies,  SPC's "artificial edge" actually enhances the articulation and intelligibility of low frequency information. Do not use Sub-3 as a full range audio cable.

DIELECTRIC-BIAS SYSTEM (DBS, US Pat #7,126,055):  All insulation slows down the signal on the conductor inside.  When insulation is un-biased, it slows down parts of the signal differently, a big problem for very time sensitive multi-octave audio.
AudioQuest’s DBS creates a strong stable electrostatic field which saturates and polarizes (organizes) the molecules of the insulation. This minimizes both energy storage in the insulation and the multiple nonlinear time-delays. Sound appears from a surprisingly black background with unexpected detail and dynamic contrast. The DBS pack’s batteries will last for years. A test button and LED allow for the occasional battery check.

NOISE-DISSIPATION SYSTEM:  100% shield coverage is easy. Preventing captured RF Interference from modulating the equipment’s ground-reference requires AQ’s Noise-Dissipation System. Metal and Carbon-Loaded synthetics prevent most RFI from reaching the equipment’s ground-plane.

DIRECTIONS: If you hear noticeable hum in your system after connecting your subwoofer, please attach Sub-3's little extra tails. Some equipment has a ground (GND) connection on the back-panel, if not, attach the little spade lugs to any screw on the equipment chassis of both the source and the subwoofer. Standard 12V batteries in the DBS pack will last several years. A test button and LED allow for the occasional battery check.