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Speaker Cables by
Ultimate Speaker Cable
Following in the footsteps of the highly acclaimed ANJOU Analog Interconnect, the ANJOU Speaker Cable strives to offer the highest quality speaker to amplifier connection possible. A no-compromise speaker cable optimized for the most accurate sound, the ANJOU Speaker Cable allows new levels of sonic accuracy to be explored. At almost 1 inch in diameter, the seemingly innocuous giant is a complex masterpiece beneath the deceptively simple outer layers of insulation. While the design of this cable required several years of development, the first production run itself took over 1 year to accomplish, with more than 4 months of machine time alone required. The result is sonic beauty without compare. This US made cable is meticulously manufactured by machine for accuracy, terminated by hand with attention to detail, and fully customizable to meet the specific needs of individual customers.
Proprietary Hybrid Geometry
Never seen before in audio cable design, Pear Cable has developed a new and completely unique hybrid geometry for the ANJOU Speaker Cable.
Using broad categorization, most speaker cable designs fall into 1 of 3 categories: coaxial, litz, or twin parallel conductors. Coaxial speaker cables can be as simple as a braided shield over a solid conductor, or as complex as 2 circularly spaced groups of conductors. Briefly, these designs offer excellent general electrical properties, but do not really offer breakthroughs in any particular category. Litz designs minimize skin effect, can offer low inductance, and braided litz designs have good rejection to Radio Frequency Interference (RFI). However, these cables can suffer from excessive capacitance, poor mechanical integrity, or poor RFI rejection for non-braided designs. Finally, twin parallel conductors can be as simple as a standard zip cord, or as advanced as two flat “plates” with a thin layer of dielectric between them. Zip cord is quite a poor design from almost every aspect (electrical inductance, noise rejection, etc.). Flat “plate” designs can offer the lowest inductance possible, but suffer from excessive capacitance. Traditionally, these have been the only available speaker cable geometries.
The ANJOU Speaker Cable utilizes a new proprietary geometry that is best described as a hybrid combination of coaxial and braided litz configurations. The result is a geometry that offers the best characteristics of each design individually, but minimizes or eliminates the negatives.
This hybrid construction is best described as a combination of coaxial and braided litz configurations. The result is a geometry that offers the best characteristics of each design individually, but minimizes or eliminates the negatives.
Ultra Low Electrical Reactance
The ANJOU Speaker Cable electrical properties begin with ultra low inductance. At just 0.025 mH/ft, the high current signals flowing through these cables will lose a minimal amount of energy. What is perhaps more unique, is the ability to achieve impressively low capacitance at the same time. The capacitance of the ANJOU Speaker Cable measures just 114 pF/ft, thus minimizing dielectric absorption. This is one of the lowest, if not the lowest capacitance speaker cables that is able to achieve such low inductance. While some cables can achieve lower inductance, these cables typically suffer from capacitance 50% to 10 times higher. Cables that achieve lower capacitance cannot match the low inductance of the ANJOU Speaker Cable. The ultra low reactance allows for extremely accurate energy transfer.
The ANJOU Speaker Cable utilizes the finest materials to maximize sonic performance and provide years of stable operation. Teflon, air, cotton, and fully annealed 99.999% pure oxygen free Copper are the 4 fundamental materials utilized in the cable. 32 individually insulated solid conductors resulting in a net 10 AWG cable are precisely manufactured to all have the exact same length per unit of finished cable. Solid Teflon, foamed Teflon, Teflon air tubes, air, and cotton combine to minimize dielectric absorption while still providing superb mechanical integrity.
The choice of metal for the conductors of interconnect cables is guided by a completely different set of goals than those for loudspeaker cables. This results in the conductor material of our ANJOU Interconnect being different from the ANJOU Speaker Cable. While the conductivity of the metal used in interconnect cables is relatively unimportant, the same cannot be said for loudspeaker cables. In addition, interconnect cables are highly affected by the capacitance of the cable, and thus are highly sensitive to the energy absorption by corrosion that forms on the surface of conductors. Loudspeaker cables, on the other hand, are far more sensitive to inductance rather than capacitance due to the relatively high current nature of the signal. The net effect is that higher conductivity copper is a far superior choice of conductor material for the ANJOU Speaker Cable when compared to the gold used in the ANJOU Interconnect.
The ANJOU Speaker Cable has been meticulously designed to minimize physical movement within the cable. Movement of conductors relative to themselves or insulation material will cause energy to be either subtracted from or added to the audio signal. Vibration caused by sound waves must be dealt with in all cables. In addition, speaker cables can resonate from the electromagnetic force caused by the current within the cable itself. There are 3 important elements to consider when minimizing mechanical movement within a cable: ability to absorb or dampen mechanical energy, the strength to prevent motion, and the electromagnetic forces that will be will be created within a cable. The ANJOU Speaker cable has been designed to have exceptional strength and stability, requiring large amounts of force to create any movement. To complete the spring and damper system that is analogous to the shock and spring on a car, cotton is strategically placed within the cable as a dampener to arrest resonance. Finally, the geometry of the cable itself has been designed to minimize the force that conductors exert on each other when current flows.
Dual Layer Primary Insulation
While it is easy to place air around a conductor to minimize the energy absorbed by the dielectric material, many techniques utilized to accomplish this task result in adverse side effects. Some manufactures simply lay conductors loosely within various types of tubes, exposing conductors to considerably higher rates of corrosion and eliminating essential mechanical support. Other common methods of reducing dielectric contact are to wind filaments around conductors or to place a foamed dielectric directly on a conductor. Both of these techniques result in local variations of electrical properties on a conductor that have been shown to decrease signal bandwidth. In addition, both of these techniques can expose conductors to corrosion.
Pear Cable utilizes a dual layer primary insulation technique to avoid all of the above issues. An extremely fine layer of Teflon, 0.002” thick, is applied to conductors in a first step that protects the underlying copper. In a second step, foamed Teflon is applied on top of the first layer in order to provide superior dielectric properties and complete mechanical support. The final insulated conductor does not suffer from local anomalies in the electrical or mechanical properties, and minimizes conductor corrosion.
Noise rejection is a problem that is significantly less important for speaker cables than for interconnect cables. Low level interconnect signals are far more susceptible to noise pickup than the high level signals leaving an amplifier. However, Radio Frequency Interference is still a concern for speaker cables. Although this high frequency noise cannot be heard directly, it has been well documented by professional organizations such as the American Radio Relay League that RFI can still be a problem in audio applications. Loudspeaker cables can act like antennae, carrying high frequency noise into amplifiers where it is electrically rectified into noise that is audible. The ANJOU Speaker Cable utilizes its proprietary hybrid geometry to effectively inhibit high frequency noise pickup without the use of a deleterious shield.
Most ultra high-end audio cables are at least partially, if not completely, hand made. The ubiquitous nylon mesh that is used to provide a more finished look to the end product can be used to easily spot these hand made cables. The primary reason for hand making very high-end cables is due to the exorbitant cost associated with manufacturing extremely complex, low volume cables on professional equipment. Unfortunately, no hand can match the precision and repeatability of a machine-made cable. The ANJOU Speaker Cable itself is completely machine-made ensuring the maximum repeatability required for cables to sound their best. The final products are of course hand terminated and inspected to ensure the highest level of quality.
The ANJOU Speaker Cable utilizes connection methods consistent with the design principles utilized in the cable itself. To begin the process, conductors are terminated with a gold plated copper crimp, installed under extreme pressure promptly after the removal of insulation, resulting in a permanent and stable cold weld. Following crimp installation, WBT 0645, 0660 Cu, or 0680 Cu spade or banana connectors are installed. These connectors all ensure a solid mechanical connection at each contact point to prevent vibration or time from compromising the connection. Gold plating eliminates deterioration from corrosion.
Cables are available either in either single wire or single bi-wire configurations.