Dielectric-Bias System (DBS)

AudioQuest Dielectric-Bias System

(DBS, US PATENT #s 7,126,055 & 7,872,195 B1)
  • Insulation, and any material within a conductor’s magnetic field, is a dielectric whose properties will affect the integrity of the signal. When the dielectric is unbiased, it causes different amounts of time delay (phase shift) for different frequencies and energy levels—a major problem for very time-sensitive multi-octave audio.
  • AudioQuest’s DBS creates a strong, stable electrostatic field that saturates and polarizes (organizes) the molecules of the insulation. This dramatically minimizes nonlinear time delays and reduces dielectric-induced smearing of the signal, letting sound emerge from a “black” background.
  • The batteries within a DBS battery pack will last for years. A test button and LED allow for the occasional battery check.

Replacing the batteries in your DBS pack

A 72V DBS pack uses six 12V batteries (Duracell MN21, Energizer A23, or equivalent 21/23 type). Commonly used in garage door openers and car alarm remote starters, these batteries are available in home improvement stores, pharmacies, and most places where batteries are sold.

The DBS pack is equipped with a small test button and LED whose single purpose is to confirm whether the batteries within your DBS pack are alive. The LED should glow only when the test button is pressed.

To check battery life, simply press the test button. If the batteries are alive, the small LED will glow green. Your DBS pack is ready to do its job. You can sit back, relax, and enjoy the music! If the LED does not glow, it’s time to replace the batteries.

Older DBS packs have a rear-panel “door” that slides open, providing access to the batteries. Newer DBS packs (with the matte finish) have a bottom cap held in place by a small Phillips-head screw. Using a #1 Phillips screwdriver, remove the cap to access the battery compartment. Replace the dead batteries with new ones.

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