Audioquest ThunderBird Bi-Wire COMBO ZERO + BASS Speaker Cable - 6ft Pair - Banana Plugs

For sale is a 6 foot pair of Audioquest ThunderBird Bi-Wire COMBO ZERO + BASS w/72v DBS battery packs and banana plugs.  These cables have been tested and confirmed to be in perfect working condition. They are less than a year and a half old. They sound incredible with really unbelievable bass response and high frequency extension. We were blown away.  
Four of the bananas are brand new, perfect condition. The others are in good condition, but with signs of use. There are a couple with very slight bends in them from the weight of the speaker cable not being braced properly.  The four Bananas that were installed are the same as the originals that are on there. The Audioquest 1005 bananas that retail for $199.95 for four. They have all of their battery packs that have been tested and are working perfectly. 

Features:

ZERO-TECH (NO DEFINED CHARACTERISTIC-IMPEDANCE) FOR UNCOMPRESSED CURRENT TRANSFER AND LINEAR NOISE-DISSIPATION The only complete way to eliminate characteristic-impedance mismatches between a cable and the attached source and load is for the cable not to have any fixed characteristic-impedance value. ZERO-Tech accomplishes this by eliminating interaction between the insulation (dielectric) and the cable’s conductors—enabling uncompressed current transfer. All-important transient current is unrestricted, and RF Noise-Dissipation is linearized (consistent octave to octave).

GND-TECH (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 Bass & Midrange speaker cables. The effectiveness of GND-Tech compromises audio above 10,000Hz, preventing the dedicated Bass & Midrange cable from being ideal for Full-Range use.

SOLID PERFECT-SURFACE COPPER+ (PSC+) CONDUCTORS Solid conductors prevent strand-interaction, a major source of dynamic distortion. Extreme-purity PSC+ solid copper minimizes distortion caused by grain boundaries, and, when direction-controlled for surface asymmetry, facilitates crucial Radio-Frequency Noise-Dissipation.

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.

72v Dielectric-Bias System with Level-X 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 that 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 Level-X RF Trap (a technology developed for AudioQuest’s Niagara Series of power products) in the DBS battery pack “pulls” RF Noise out of the cable, preventing RF from infiltrating the electronics. DBS Pack batteries last about 10 years. Use the test button to verify condition.

THUNDERBIRD BI-WIRING When possible, running separate cables to the treble and bass “halves” of a speaker considerably reduces distortion. Bi-Wiring 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. AudioQuest BASS cables’ GND-Tech (patented Ground-Noise Dissipation) attracts RF energy away from the amplifier’s output. When properly implemented, Bi-Wiring has always been a cost-effective way to get better performance for the same or less money. With GND-Tech, the advantage of Bi-Wiring is much more dramatic. ThunderBird BASS cable is ideal for the Bass input of a Bi-Wireable speaker in combination with a ThunderBird ZERO on the treble input. A BiWire-COMBO with BASS and ZERO cables joined together at the amplifier is usually the most convenient. When Tri-Wiring, use BASS cables on the Midrange and on the Bass inputs. Caution: Do not Bi-Wire with two ZERO cables. Two or more ZERO cables in-parallel can create a very high-frequency resonant peak (ringing), resulting in poor sound. On a Bi-Wired speaker, only use a ZERO in combination with a BASS cable, otherwise use a single ZERO cable with jumpers.

MYTHICAL CREATURE COLD-WELDED TERMINATIONS Mythical Creature 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 not to induce RF Noise into the conductors.