Synergistic Research Zero Capacitance Active Shielding
Synergistic's proprietary active shielding technology increases bandwidth, reduces noise floor
The TESLA Series cables from Synergistic Research improves upon competitors' versions of active shielding with their Zero Capacitance circuitry that significantly improves cable bandwidth especially in the areas of low frequency extension and control. High frequency air and transparency, sound stage depth and width also improve dramatically. The noise floor is significantly reduced too, improving micro and macro dynamics.
Active shielding also has the added benefit of removing the effects of dialectric absorption of the audio signal. A cable's dialectric can "store" the audio signal that the conductor is carrying, and then (picoseconds) later release the signal back into the conductor. This is best heard as "smearing" of the musical details. Active shielding eliminates this. Because the actively shielded dialectric is fully "charged" by the active shielding circuitry, it cannot pick up, store, and release the stored audio signal back into the conductor later. The result, a clearer, more dynamic and harmonically correct cable.
Below is a list of all Synergistic Research cables that are actively Shielded
Interconnects
Digital Cables
Loudspeaker cables
Power Cords
And of course, the Tesla PowerCell is actively shielded as well