Audioquest Gibraltar 12ft. Single Cable with 72v DBS

NOTE: This is a single cable that was used for my center channel. This is not a pair of cables.

For sale is a 12ft. (single-biwire) cable, with multi-spades on all ends. That means two connectors on the amplifier end and four connectors on the speaker end.

The cable is in very good condition. The connectors are in good condition
with some minor wear evident.

From the Audioquest Data Sheet:

This double star quad geometry “Flat Rock” cable does not look normal on the
outside, and it is not at all normal on the inside. A sophisticated combination
of extraordinary materials and extremely refined design lets Gibraltar… to
equally honor all types of music.

CONDUCTORS: All eight of Gibraltar’s conductors are solid. Electrical and magnetic interaction between strands in a conventional cable is the single greatest source of distortion, often causing a somewhat harsh, dirty and confused sound. Solid conductors are the most important ingredients enabling Gibraltar’s very clear sound. Whether a conductor is solid or stranded, skin-effect is a prime distortion mechanism in speaker cables. Gibraltar very simply keeps this effect out of the audio range by using conductor sizes that are below the threshold for audible distortion.

PERFECT-SURFACE COPPER+: Gibraltar uses extremely high purity Perfect-Surface Copper+ (PSC+) conductors. All conductors are solid, which prevents strand interaction, a major source of distortion. Surface quality is critical because a conductor can be considered as a rail-guide for both the electric fields within a conductor, and for the magnetic fields outside the conductor. The astonishingly smooth and pure Perfect-Surface eliminates harshness and greatly increases clarity compared to OFHC, OCC, 8N
and other coppers. The superior purity of PSC+ further minimizes distortion
caused by grain boundaries, which exist within any metal conductor.

DIELECTRIC-BIAS SYSTEM (patent pending): Unfortunately, because insulation stores and releases energy, it is also a “dielectric.” In a cable application, all released energy is distortion. The misnomer “break-in” is often used to describe the pronounced improvement in performance as the dielectric adapts to a charged state as the cable is used. Whenever a cable does not have a charge on it, it is re-adapting to an
uncharged state; it is becoming new again.

By maintaining a 72 volt dielectric-bias, far above the voltage of delicate audio
signals, the DBS system provides considerably better transparency and dynamics
than is possible even from a cable in continuous use. It takes a couple of
weeks for the DBS system to reach maximum performance. Since DBS battery packs
are attached when Gibraltar cables are first terminated, Gibraltar will be
approaching or at peak performance by the time it is installed in your system.
Since there is no “load” on the two standard hardware-store batteries, they
will last for years. A test button and LED allow for occasional verification of
battery performance.

GEOMETRY: The relationship between conductors defines a cable’s most basic
electrical values (capacitance and inductance). However, even when those
variables are kept in a reasonable balance, the relationship between conductors
can be varied in ways that greatly affect the sound. The dual spiral
construction of Gibraltar allows for significantly better dynamic contrast and
information intelligibility than if the same conductors were run in parallel.
The specific 4-cross geometry used in each half of Gibraltar maximizes this
advantage.

SST (Spread Spectrum Technology): Any single size or shape of conductor
has a specific distortion profile. Even though radially symmetrical conductors
(solid round or tubular) have the fewest discontinuities, any particular size
does have a sonic signature. SST is a method for significantly reducing the
awareness of these character flaws by using a precise combination of different
size conductors. The four different SST-determined conductor sizes used in Gibraltar allow an exceptionally clear, clean and dynamic sound.

CONDUCTIVE INSULATION: The four negative conductors in Gibraltar are insulated with partially conductive carbon-loaded polyethylene. This remarkable material damps radio-frequency garbage from being fed back into the amplifier. The sonic benefit is exactly
the same reduction in hash and better dimensionality that comes whenever RF
garbage is reduced in an audio circuit.

BIWIRING: Gibraltar is an exceptional Single-Biwire cable. When the halves are
separated at the speaker end, the double quad-helix design turns Gibraltar into
a true double-biwire set thanks to the magnetic autonomy of each quad-helix. On
its own; one quad would be a little light-weight in performance as it is biased
towards treble finesse. The other quad is biased toward the bass; it’s more
forceful and lacking ultimate resolution. Together they form a completely
optimized full range design, which was the first priority; but when separated
the dual star quads let Gibraltar be a maximum performance double-biwire in a
single cable.

TERMINATIONS: Audioquest offers a wide range of high quality connectors that allow
Slate to be securely attached to any type of equipment. “Quality” is in the low
distortion sound, not necessarily in the eye-candy effect. AQ ends are either a
dull looking gold or silver because these metals are plated directly over the
connector. There is no shiny and harsh sounding nickel layer underneath. AQ
PK-spade lugs are soft because better metal is soft, and facilitates a higher
quality connection. For pieces requiring a banana plug or BFA connector the AQ
PK-BFA/Banana provides unprecedented performance over conventional brass
versions.

A combination of these major ingredients, and many more subtle details add up to
explain how even a reasonably priced cable like Gibraltar can sound so good.