ACROLINK 7N-S1000 Leggenda

The high-purity copper audio cable pioneered by Acrolink can now be called a "legendary" in itself.Despite the fact that cables have a propagation speed that can travel around the earth several times in one second, many audiophiles acknowledge that there are differences in the sound caused by cables.More than 30 years ago, we proved that there is a clear difference in improving purity among many factors.Since Acrolink has always been the top runner, we are now using high-purity Cu of 7N in our entry models, taking advantage of the mass production effect that can be realized.

Measurement techniques that did not even exist until then were established, and the crystalline state of conductors was visualized. Differences in sound that could not be explained by purity or crystal grain size, which had been whispered about by audiophiles, were scientifically elucidated from the perspective of ``directionality,'' and a production process was built to optimize directionality.

The "scientific" approach to elucidating the differences between sounds is steadily producing results.D.U.C.C. is also a major achievement.The new product 7N-S1000Leggenda, which has been given Acrolink's unique stress-free processing, is a speaker cable that uses virtually the highest quality conductor in a basic parallel type structure.

There are 18 0.37φ core wires wrapped in copper foil tape, which is much stronger than the mesh material, to completely eliminate noise.It was manufactured by utilizing know-how regarding angles and tension during the twisting process, and in addition, natural silk thread was run along the conductor to eliminate self-noise and mutual interference.The structural design is perfect, achieving an extremely large shielding effect against disturbance noise.

Capacitance is minimized by placing two conductive damping materials with an electromagnetic wave absorbing non-magnetic thread in the center between the wires.Acrolink's know-how based on vast experience has been generously applied to the covering material that supports the new core wire, and the insulator is a high-molecular polyolefin resin.Based on the sense of speed over a wide band and the free spread of sound, which are the major advantages of the parallel type, we have achieved a realistic presence and a sound without harshness.

The real value of today's high-resolution technology lies in the precise data conversion of the steep slew rate characteristics of sounds within the audible range.In other words, what is required of the cable as a component in the final step of transmitting the output of the power amplifier to the speaker is high-speed transmission characteristics.

30 years of lamination.This is the birth of a new "legendary" cable that is both simple and profound, without changing the sound.  

Features of 7N-S1000 Leggenda

[Original stress-free 7N Cu]

Acrolink's stress-free products are the only cables in the world that use a unique special annealing process and the characteristics of high-purity copper to restore the structure to a healthy state through self-annealing unless there is too much external stress.

At the time of heat treatment after wire drawing, the atomic arrangement transition is on the order of 1/1 billion compared to ordinary 4N copper, and the number of crystal grains is 1/80 to 1/100. Furthermore, the flow of current promotes an aging (self-annealing) environment, reducing residual distortion and restoring the tissue to a healthy state, resulting in higher sound quality.

【D.U.C.C. 7N Cu】

Dia Ultra Crystallized Copper is a high-purity copper conductor for audio cables developed by Mitsubishi Cable Industries, Ltd. It is a material whose crystal grains have grown to several tens of times larger than that of general pure copper, and whose crystal lattice orientation is aligned.

The larger the crystal grains, the fewer grain boundaries (interfaces between crystals), which has a great advantage in terms of sound quality, but metal crystals have directionality, which also needs to be aligned.

Although its directionality can be observed through analytical phenomena caused by X-ray irradiation, by optimizing manufacturing processes such as the bus bar, wire drawing process, and annealing, we were able to create an extremely superior wire material with ``optimum directionality for transmitting audio signals.''  

Structure of 7N-S1000 Leggenda

7N-S1000 Leggenda specifications

Specifications