It can be said that all pure audio class cable conductors have extremely high transmission speeds.

However, it is also true that each of them produces different results. This tells us that it's not just about speed. Even with the same material, there are infinite combinations of thickness and number, from a single wire to dozens of twisted wires.

In addition, we also include the material and method of the sheath and shield, and in addition to the terminals, Acrolink uses original terminals instead of off-the-shelf products in all of its products. Naturally, we repeat auditions throughout the development process.

listen to music. For example, in 2020, the 250th anniversary of Beethoven's birth, what kinds of sounds should we never lose or preserve? This difference in opinion results in a change in the sound.

Features of 7N-PC4030 LEGGENDA CB

【conductor】

Acrolink original = 7N Cu D.U.C.C. Stressfree, which has reached unprecedented heights with extremely large crystal grains and uniform orientation. Inherited from the 7N-PC4030 Anniversario, which achieved a new acro link golden ratio of wire diameter and architecture to bring out the performance of high-end components.

Hot/cold (7NCu) and ground (4NCu) are all wire diameter 0.37φ x 50 pieces. Apply squalane oil to each strand. More powerful realism from the midrange to the ultra-low range. The melody of the 9th "Ode to Joy" was completed after repeated exploration, and the pitches of the cello and double bass that are played at the beginning of the entire song are supported clearly and with plenty of volume.

Transparency across all bands has been further improved. In addition, the linear spatial spread of the reverberation component that spreads in three dimensions, the sense of resolution at the minute level, and the descriptive power have also greatly improved.

【shield】

In the digital age, the noise environment of audio equipment has changed completely. The quality and quantity of noise caused by digital circuits that did not exist in the analog era was generated. This required unprecedented measures. At Acrolink, we have been tackling this issue from an early stage, and we are acutely aware of the need for power cable shielding, and have positioned it as a second theme along with vibration countermeasures.

Electromagnetic wave absorbing non-magnetic thread and silk thread are installed at the center of the three conductors. A shield layer made of tape (copper foil) is installed around the outer periphery of the inner sheath to form a "surface" rather than a "net." Completely prevents external noise from entering.

The copper foil tape and drain wire are grounded to the ground of the plug, establishing an electric field shielding effect and supplying extremely clean power to the equipment.

【material】

A major feature of Acrolink audio cables is that they consistently use polyolefin resin, which has particularly excellent insulation and vibration characteristics, as the sheath material.

Polyolefin resin is used as the first insulator to cover conductors twisted at an appropriate tension angle. Furthermore, in order to block the vibrations generated by the transmission itself and external vibrations, the polyolefin material is made by kneading fine granular tungsten powder and amorphous powder in an appropriate mixing ratio determined through many trial productions. The conductor is fixed by forming an intervening layer.

Furthermore, an inner sheath is formed around the outer periphery of the intervening layer, which is made of polyolefin containing a special material that has a vibration damping effect. The copper foil seal layer wrapped around this inner sheath is coated with double thick lead-free high-quality PVC to form the outermost sheath, achieving an even greater vibration suppression effect.

Its surface is extremely smooth, and the glossy white pearl color finish symbolizes the dignity of a high-end cable.

[Original acro link stress-free processing]

Acrolink's stress-free products are the only cables in the world that are able to restore the tissue to a healthy state through self-annealing, as long as there is no excessive external force, due to its unique special annealing treatment and high purity characteristics.

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

[7N Cu D.U.C.C]

Dia Ultra Crystallized Copper is a high-purity audio conductor made of a material whose crystals are grown several dozen times larger than ordinary pure copper and whose crystal lattice is oriented in the same direction.

The larger the crystal grains, the fewer the grain boundaries (interfaces between crystals), which dramatically improves sound quality. In addition, we can optimize the manufacturing factory by observing the directionality of crystals by reducing analysis by X-ray irradiation. The synergistic effect of D.U.C.C x Acrolink Stress Free makes it an extremely superior wire with unparalleled "optimum directionality for power supply current transmission."

[Plug/Connector]

No matter how much the cable itself evolves, the ideal cannot be realized unless the deterioration of sound quality at the contact points is minimized. Original production of plugs and connectors is required.

We specially ordered Acrolink specification plugs and connectors from Oyaide Electric, which has many commonalities in the direction of research and development.The blade uses beryllium copper, which has extremely high conductivity, and the thickest possible rhodium plating after the base silver plating. It is finishing.

The housing is made of particularly durable polycarbonate, which has excellent vibration damping properties. We have achieved a quality comparable to the completeness of the cable itself.

cable

Outer diameter dimension 15.7mm (diameter)

Conductor 7N Cu D.U.C.C. Stressfree 0.37φ×50 strands (white/black)

Ground 4N5 super soft copper wire 0.37φ x 50 twisted (green) for grounding

Insulator High molecular polyolefin resin

Intervening layer: High molecular polyolefin + tungsten powder + amorphous powder

Inner sheath: Polyolefin resin with damping material

Shield copper foil tape + drain wire

Outer sheath Lead-free PVC

Conductor resistance 2.8mΩ/m

Power plug and IEC connector

Blade: Beryllium copper (mirror polished)

Plating After polishing twice, finish with thick silver plating (1.5μ) + rhodium plating (0.3μ)

Chassis High rigidity PBT (30% glass filler)

Body Highly rigid polycarbonate

*Completely non-magnetic material *125V/15A specifications Electrical Safety Law compliant product