Castle Rock Speaker Cable 3M Pair
RIP Gibraltar, long live Castle Rock! Like Gibraltar before it, Castle Rock is designed as an extremely high-performance cable which provides true Double-BiWire performance in a single attractive ...
RIP Gibraltar, long live Castle Rock! Like Gibraltar before it, Castle Rock is designed as an extremely high-performance cable which provides true Double-BiWire performance in a single attractive cable. Original Gibraltar’s all important basics – superior geometry, magnetic autonomy of each quad-conductor section, Perfect-Surface metal technology, conductor-size optimization (AQ’s Spread-Spectrum Technology), etc. – are the fundamentals of Castle Rock. Castle Rock employs AQ’s best copper conductor metal (Perfect-Surface Copper+), AudioQuest’s DBS (Dielectric-Bias System) and NDS (Noise-Dissipation System).
- AudioQuest Castle Rock Speaker Cable Pair (Factory Terminated)
- Metal: Solid Perfect-Surface Copper+
- Gauge: 12 AWG (3.31mm)
- Geometry: Double Star-Quad
- Dielectric: Foamed-Polyethylene (For All Positive Conductors)
- Noise-Dissipation System: Carbon-Based Noise Dissipation and Cross-Talk-Dissipation System
- 72V Dielectric-Bias System (DBS) saturates and polarizes insulation, greatly reducing digital-audio distortion
- Jacket: Black/Brown Braid
- Plugs: 1000 Series Multi-Spade or Banana (Silver Only)
- Factory Terminated
- Lifetime Warranty
Also new to Castle Rock is a more-neatly-sculpted “breakout” (the covering where the cable separates into red and black legs), which is now made of a synthetic non-magnetic polymer, rather than metal. We’re making this all-models upgrade because speaker cables and AC power cables carry large magnetic fields which interact with any metal “collar” around the cable. Eliminating metal in the breakouts is another significant (and clearly audible) step forward in our goal of eliminating distortion and making the cable sonically “invisible.” Please note too that AudioQuest now offers a Single-BiAmp option for any Rocket, Rock or Tree Series speaker cable, including Castle Rock. Although similar to a Single-BiWire configuration in which the speaker end has four connectors, the Single-BiAmp configuration also has four connectors at the amplifier end to accommodate the growing number of users who wish to take full advantage of all the amplifier channels in many of today’s AV receivers and multichannel power amplifiers.
Castle Rock represents the culmination of Gibraltar’s long-term evolution along with performance- enhancing new systems and materials. These ingredients add up to important audible improvements and more pleasurable listening!
SOLID PERFECT-SURFACE COPPER+ (PSC+) CONDUCTORS:
Solid conductors prevent strand interaction, a major source of cable distortion. Extremely high-purity Perfect-Surface Copper+ minimizes distortion caused by grain boundaries that exist within any metal conductor, nearly eliminating harshness and greatly increasing clarity compared to OFHC, OCC, 8N and other coppers.
CARBON-BASED NOISE-DISSIPATION and CROSS-TALK-DISSIPATION SYSTEMS (INSULATION):
The negative conductors in Castle Rock 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. Castle Rock uses Nitrogen-Injected Foamed-Polyethylene Insulation on its positive conductors because air absorbs next to no energy, and Polyethylene is low-loss and has a benign distortion profile. Thanks to all the air in Foamed-PE, it causes much less of the out-of-focus effect common to other materials.
DIELECTRIC-BIAS SYSTEM (DBS, US Pat #s 7,126,055 & 7,872,195 B1):
All insulation slows down the signal on the conductor inside. When insulation is unbiased, it slows down parts of the signal differently, a big problem for very time-sensitive multi-octave audio. AudioQuest’s DBS creates a strong, stable electrostatic field which saturates and polarizes (organizes) the molecules of the insulation. This minimizes both energy storage in the insulation and the multiple nonlinear time-delays that occur. Sound appears from a surprisingly black background with unexpected detail and dynamic contrast. The DBS battery packs will last for years. A test button and LED allow for the occasional battery check.
DOUBLE STAR-QUAD 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 Double Star-Quad construction of Castle Rock allows for significantly better dynamic contrast and information intelligibility than if the same conductors were run in parallel.
SPREAD-SPECTRUM TECHNOLOGY (SST):
Any single size or shape of conductor has a specific distortion profile. Even though radially symmetrical conductors (solid or tubular) have the fewest discontinuities, any conductor of a 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 different SST-determined conductor sizes used in Castle Rock allow an exceptionally clear, clean and dynamic sound.
Castle Rock is an exceptional Single-BiWire cable. When the halves are separated at the speaker end, the Double Star-Quad Geometry turns Castle Rock into a true Double-BiWire set thanks to the magnetic autonomy of each Quad-conductor section. On its own, one Star-Quad conductor group would be a little lightweight in performance as it is biased towards treble finesse. The other Star-Quad conductor group is biased toward the bass; it’s more forceful and lacking ultimate resolution. Together they form a completely optimized full-range design. When separated, the Double Star-Quad design allows Castle Rock to be a maximum-performance Double BiWire in a single cable.
AudioQuest offers a wide range of high-quality connectors that allow Castle Rock 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 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.
The metal breakouts on either end of Castle Rock are marked “Speaker End” or “Amp End.” Please use cables in the direction required.
The pioneering cable designer and manufacturer AudioQuest has been the largest cable supplier to the high-end specialist market for many years. Created in 1980 by Bill Low, AudioQuest is focused on the design and development of cables and is well known for the use of multiple connectors in their range of speaker cables. These high-end cables have been built using Bill’s understanding of the mechanisms that cause distortion in cable and have used technology to create superior sounding cables.
AudioQuest has always based its products on performance and sound quality and have taken the design and development of cables and turned it into an art form. Over the years the range of cables has evolved from audio only to data cables, video and digital cables. These cables have been built from the ground up based on the same low distortion principles as the original audio cables.
The results are truly superb with cables that are able to elevate a sound system by reducing distortion and providing a much clearer, harmonious and expressive tone. AudioQuest is sold in over sixty countries worldwide and is the cable of choice for professionals and enthusiasts alike.