AudioQuest William Tell ZERO 72v DBS 2m Pair Speaker Cable

AudioQuest William Tell Zero Speaker Cable

Closely related to AudioQuest's groundbreaking Mythical Creature Series, the Folk Hero Series, comprising two models—Robin Hood and William Tell—are available with either Solid Perfect-Surface Copper+ or Solid Perfect-Surface Silver conductors. While the Mythical Creatures are all-out assaults on the state of the cable art, the Folk Heroes use all of the same technology with fewer conductors.

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.

Like the larger-gauge cables of the Mythical Creatures Series, William Tell and Robin Hood 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. Like their larger siblings, William Tell and Robin Hood also feature AudioQuest's patented common-mode noise-rejection technology. Along with the Mythical Creatures, these latest AudioQuest speaker cables significantly outperform previous technology at controlling and draining radio-frequency noise.

Features

ZERO: No Characteristic Impedance for Uncompressed Current Transfer
• Ground-Noise Dissipation
• Solid Perfect-Surface Copper+ (PSC+)
• Direcitonality
• Carbon-Based Linearized Noise-Dissipation System (NDS)
• Dielectric-Bias System with Carbon-Level Radio-Frequency Trap (DBS)
• William Tell Biwiring
• Folk Hero Cold-Welded Terminations

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.

Ground-Noise Dissipation

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.

Solid Perfect-Surface Copper+ (PSC+)

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 surface of all AudioQuest’s Perfect-Surface metals nearly eliminates harshness and greatly increases clarity compared to lesser materials. Extremely high-purity Perfect-Surface Copper+ further minimizes distortion caused by grain boundaries that exist within any metal conductor.

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 an 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.

Dielectric-Bias System with Carbon-Level Radio-Frequency Trap (DBS)

All insulation is also a dielectric whose electrical properties affect the integrity of the signal. When the insulation is unbiased, dielectric-involvement (absorption and non-linear release of energy back into the signal flow) causes different amounts of time delay (phase shift) for different frequencies and energy levels, which is a significant problem for very time-sensitive multi-octave audio. AudioQuest’s multi-patented DBS creates a strong, stable electrostatic field which saturates and polarizes (organizes) the molecules of the insulation. This minimizes the nonlinear time delays, resulting in clearer sound emerging from a “blacker” background. The inclusion of an RF Trap (a technology developed for AudioQuest’s Niagara Series of power products) in the DBS battery pack further reduces radio-frequency noise. The DBS battery packs will last for many years. A test button and LED allow for the occasional battery check.

William Tell Biwiring

When possible, running separate cables to the treble and bass “halves” of a speaker considerably reduces distortion. BiWiring keeps the large magnetic fields associated with bass energy out of the treble cable, allowing the delicate upper frequencies to travel a less magnetically disturbed path, like taking the waves out of the water when you swim. The “Rocket” models of AQ speaker cable have two autonomous internal constructions, facilitating proper BiWiring within a single cable. The “Type” models of AQ speaker cable can be doubled-up, using one for treble and one for bass. However, doubling-up AQ’s ZERO Technology cables can be less of an improvement because of ZERO’s unrestricted wide bandwidth – using two ZERO Full-Range cables can actually allow more RF energy into the amplifier, whereas using a BASS with GND Bass & Midrange cable in combination with a ZERO cable for Treble significantly reduces total RF Noise. The BASS cable’s patented Ground-Noise Dissipation (GND) drains RF energy away from the amplifier’s output. When properly implemented, BiWiring has always been a way to get better performance for the same or less money. With GND, the improvements from BiWiring are considerably more dramatic. William Tell BASS with GND is an ideal cable for the Bass and Midrange inputs of either a BiWireable or TriWireable loudspeaker when used in combination with William Tell ZERO or William Tell SILVER Full-Range cables.

Folk Hero Cold-Welded Terminations

Folk Hero cables are Cold-Welded to AudioQuest’s extremely pure Red Copper Spades or Bananas. The bare copper is submerged (hung) in a vat of pure silver instead of being tumbled in a lower-grade solution. AudioQuest speaker breakouts and plug casings are not metal in order to not disrupt the signal’s magnetic field, and to not induce RF Noise into the conductors.

Contact Enhancer Option

To ensure the best possible connection between your system, Future Shop recommends the DeoxIT Gold G-Series contact enhancer.

DeoxIT Gold is carefully applied to the plug contacts of your cable and is a unique conditioning solution designed to improve conductivity and provide long-lasting protection on gold, base metals and other precious metal contacts and connections. DeoxIT Gold penetrates plated surfaces, molecularly bonding to the base metals to seal and protect both surfaces.

The benefits of applying DeoxIT gold are:

• Improved Conductivity
• Maintained optimum signal quality
• Reduced wear & abrasion
• Prevents fretting/dendrite corrosion
• Forms a protective anti-tarnishing coating
• Stabilises connections between similar and dissimilar metals
• Reduces arcing, RFI and intermittent connections

Please select this option from the above ‘Contact Enhancer’ drop-down menu and our engineers will apply the contact solution to your cable connectors prior to shipping.

Specification:

• Please note, you need to enter a quantity of 2 for a pair
• Metal: Solid Perfect Surface Copper+ (PSC+)
• Gauge: 2 x 2.65mm²
• Geometry: 2 x 3-in-0Ω
• Dielectric: DBS with Radio Frequency Trap
• Noise-Dissipation System: Carbon Based Linearised NDS
• Jacket: Black/Red Braid
• Bi-Wirable: Yes with Folk Hero Bass Speaker Cables
• Termination: Series 1000 Silver Banana or Series 1000 Silver Spade
• Warranty: Lifetime

About AudioQuest

AudioQuest has been the largest cable supplier to the high-end specialist market for many years. AudioQuest is sold in several hundred outlets in the US and in over sixty countries. Bill Lowe (Founder) is especially pleased that this success has been possible despite his insistence that the foundation of the company, and the foundation of AudioQuest marketing, must be the performance of the product. In the audio world, many professionals have learned that it is not always convenient to listen to the products they sell … they might learn something they don’t want to know! Bill has always understood the challenge of basing the existence of AudioQuest on the performance of the product. However, to Bill, this is the only reasonable way to do business and the only acceptable way to combine his passion for music (and all things high performance), with his need to make a living.