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AudioQuest William Tell Silver Zero Speaker Cables (pair)

William Tell can be used in one of two ways: either employing the ZERO model for Full-Range, or by using the ZERO model in combination with a dedicated BASS cable, as a fully optimized BiWire Combination cable.
  • Zero: no characteristic impedance for uncompressed current transfer
  • Solid perfect-surface silver (pss) & solid perfect-surface copper+ (psc+) conductors
  • Ground-noise dissipation (gnd)
  • Directionality
  • Carbon-based linearized noise-dissipation system (nds)
  • Dielectric-bias system with carbon-level radio-frequency trap (dbs)
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Building on a solid base of tried and true AudioQuest technologies, the design team of Garth Powell and Bill Low specifically focused on addressing one of the most vexing issues plaguing speaker cable design: the mismatch between the amplifier’s source impedance and the speaker’s load impedance. By eliminating the speaker cable’s characteristic impedance (ZERO Technology), current compression and distortion of the signal/current transient are significantly reduced. The result is dynamic contrast, transient response, and bass slam that are rendered seemingly without effort, because the cable is not electrically impeding the music.

Features

ZERO: NO CHARACTERISTIC IMPEDANCE FOR UNCOMPRESSED CURRENT TRANSFER The integrity of any audio transient (instantaneous peak-to-peak voltage swing and current) delivered from a power amplifier to a loudspeaker has always been compromised. Whether the amplifier is valve or transistor, regardless of class of operation, the amplifier’s source impedance and loudspeaker’s load impedance are never critically matched. The speaker cable’s characteristic impedance is yet another culprit in a highly compromised non-linear electrical circuit. AudioQuest has always stated that all cables cause damage because the output is never as good as the input. However, by eliminating a speaker cable’s characteristic impedance, AQ’s ZERO Technology is an unprecedented step towards reducing that damage. The result is greater dynamic contrast, better audio transient response, and bass slam that are rendered seemingly without effort because the cable is not electrically restricting (strangling) the music. SOLID PERFECT-SURFACE SILVER (PSS) & SOLID PERFECT-SURFACE COPPER+ (PSC+) CONDUCTORS Solid conductors prevent electrical strand-to-strand interaction, major sources of distortion. Surface quality is critical because a conductor can be considered as a rail-guide for both the fields within a conductor, and for the magnetic fields that extend outside the conductor. The astonishingly smooth and pure Perfect-Surface Copper+ eliminates harshness and greatly increases clarity compared to OFHC, OCC, 8N and other premium coppers. Extremely high-purity Perfect-Surface Silver further minimizes distortion caused by grain boundaries, which exist within any metal conductor. GROUND-NOISE DISSIPATION (GND) This extremely effective patented common-mode noise-rejection technology is deployed on the ground path in almost all AQ AC Power cables, in addition to in AQ Bass & Midrange model speaker cables. The effectiveness of GND compromises audio above 10,000Hz, preventing the dedicated Bass & Midrange cable from being ideal for Full-Range use. DIRECTIONALITY All drawn metal strands or conductors have a non-symmetrical, and therefore directional, grain structure. AudioQuest controls the resulting RF impedance variation so that noise is drained away from where it will cause distortion. The correct direction is determined by listening to every batch of metal conductors used in every AudioQuest audio cable. When applicable, arrows are clearly marked on the connectors to ensure superior sound quality. For most models of AQ cable, the arrows not only indicate the direction that optimizes metal-directionality as part of Noise-Dissipation, but also indicates non-symmetrical attachment of shield and GND in order to optimize full-system performance. CARBON-BASED LINEARIZED NOISE-DISSIPATION SYSTEM (NDS) Today’s environment is saturated with radio-frequency noise that is extremely difficult to filter or reject. The frequencies of this noise from satellites, cellular towers, and Bluetooth, etc., are so extremely narrow that a conventional shield, or a series or shunt filter, is wholly inadequate. Much of the low-level signal that carries the harmonics and spatial cues that define high-resolution audio is masked by induced radio-frequency noise. AQ’s comprehensive Linearized Noise-Dissipation System combines multiple shields and a carbon-based linearized resistive network that turns most of this noise into heat. By "linearized," we mean that the system is equally effective across extremely wide bandwidth, rather than at selected frequencies only, as is more common. The remaining bad energy is effectively drained away from the sensitive amplifier circuits via directionally controlled signal and shield conductors.
Length feet 5 feet, 5 feet, 5 feet, 5 feet, 5 feet, 3 feet, 7 feet, 9 feet, 12 feet, 15 feet, 20 feet, 5 feet, 5 feet, 5 feet, 3 feet, 3 feet, 3 feet, 3 feet, 7 feet, 7 feet, 7 feet, 7 feet, 9 feet, 9 feet, 9 feet, 9 feet, 12 feet, 12 feet, 12 feet, 12 feet, 15 feet, 15 feet, 15 feet, 15 feet, 20 feet, 20 feet, 20 feet, 20 feet, 3 feet, 3 feet, 3 feet, 7 feet, 7 feet, 7 feet, 9 feet, 9 feet, 9 feet, 12 feet, 12 feet, 12 feet, 15 feet, 15 feet, 15 feet, 20 feet, 20 feet, 20 feet
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