The first generation ACROSS series was introduced in 2006 with the revolutionary cross insulation structure "C.I.S Structure" that uses an air layer as a damper.Its excellent performance is recognized by everyone, and as Oyaide Electric's core cable, the series has shipped over 100,000 meters in total.
However, production of the first generation ACROSS series will end in 2013 due to the discontinuation of the PCOCC-A conductor.After many difficulties, we created the "Precision Conductor 102 SSC" to replace PCOCC-A, and commercialized the new ACROSS series using this conductor*.Now, the only remaining speaker cable in the ACROSS series, "ACROSS 2000," has been upgraded to "ACROSS 3000" with "Precision Conductor 102 SSC."
“ACROSS 3000” introduces precision conductor “102SSC” and Mishu Electric Wire’s patented technology “3E twist”.While the basic structures such as C.I.S. structure and coaxial twin conductor are inherited from the first generation, the conductor cross-sectional area has been upsized by 1.5 times compared to ACROSS 2000 (2.0Sq⇒3.0Sq). This greatly reduces conductor resistance (0.84Ω⇒0.63Ω/100m).We have achieved further improvement in transmission capacity.Please enjoy Oyaide's proud creations, which have been further refined using the latest technology.
Product features
- Successor speaker cable of the first generation "ACROSS 2000".The new speaker cable “ACROSS 3000” uses “Precision Conductor 102 SSC”.
- Inheriting the first generation, it uses a cross insulation structure (C.I.S. structure) that uses an air layer as a damper to reduce capacitance and improve high-frequency characteristics, while attenuating vibration with its excellent stabilizer effect.
- Inheriting the first generation, the insulating material is made of high-molecular polyolefin, which has an extremely low dielectric constant of 1/4 that of PVC.
- Introduced the patented technology "3E twist" for twisting the center conductor (Mishu Electric Wire Patent Publication 2009-266670).
- "3E twist", which geometrically twists wires with three different wire diameters, makes the conductor denser and eliminates deterioration in sound quality due to inter-wire distortion.
- Compared to “ACROSS 2000”, the cross-sectional area is upsized (2.0Sq⇒3.0Sq).Reduced conductor resistance (0.84Ω⇒0.63Ω/100m).Achieving further improvement in transmission capacity.
- The exterior is a chic beluga color (caviar black) and is a halogen-free sheath exclusively for audio with excellent vibration damping.
Adopts Oyaide Electric's proud precision conductor "102 SSC"
- In order to avoid contamination with impurities as much as possible, we only use virgin copper, which does not contain any recycled copper, even among JIS C1011 compliant copper.
- Peeling process removes 100% of impurities attached to the surface.
- In order to smooth the flow of electrical signals on the surface of the conductor, the wire is thinned using a natural diamond die to improve the surface smoothness of the wire.
- The strands are made into fine wires with a processing accuracy of ±1 μm, which far exceeds the standard error tolerance of ±8 μm.
- The world's first high-density conductor with different diameter 3E twisting structure is adopted in the twisting process (patented).Increases the density and roundness of the strands and stabilizes the electrical properties.
- Two-time annealing process eliminates mechanical stress and strain on the wire.
- Thorough product management including manufacturing control figures, maintenance, shipping days, etc.Achieved the highest conductivity of 102.3% IACS.
*For details about precision conductor "102SSC" here Please take a look.
“3E twist” is a patented technology that twists wires of three different thicknesses.
The 3E stranded structure is a concentric stranded conductor with a concentric strand arrangement, and the stranded wire arrangement is made denser by arranging three different wire diameters.This makes it possible to reduce the diameter of the conductor configuration, improving conductor characteristic values.These three wires with different conductor diameters are arranged geometrically to minimize the gaps between the wires and improve the wire density.
Furthermore, the outer diameter of the stranded wire has been downsized, maintaining a stable and highly accurate outer diameter, and the cross section after twisting is a perfect circle, making it a unique conductor structure in the world.This allows the insulator and conductor to adhere evenly, eliminating random thickness of the insulator and making it uniform.We strive to stabilize the electrical characteristics by always keeping the distance to the shield uniform.
C.I.S structure with air layer as a damper
Oyaide Electric's unique cross insulation structure (C.I.S. structure) is used, which uses an air layer as a damper to lower capacitance and improve high-frequency characteristics, while attenuating vibrations with its excellent stabilizer effect.The basic architecture uses a coaxial layout to make the most of the C.I.S structure.The C.I.S structure supports the center conductor at a point rather than a surface, minimizing mutual interference between the center conductor and the outside world.
Additionally, the air damper layout inside has been devised with a completely different idea.The conventional approach to vibration was to use a compound to dampen internally generated vibrations, but the ACROSS 3000 takes the approach from the idea of releasing vibrations, rather than absorbing and damping them.Furthermore, this C.I.S structure not only has an excellent stabilizer effect, but also greatly contributes to improving electrical characteristics.
Since there is an air layer between the shield and the shield, it is highly effective in significantly reducing capacitance.The insulating material that makes up the C.I.S structure uses high-molecular polyolefin, which has an extremely low dielectric constant of 1/4 that of PVC.With these unique structures and materials, the ACROSS 3000 stands out for its unrivaled agile response and stress-free spatial expression.
Oyaide Electric's traditional audio halogen-free sheath
The exterior sheath uses Oyaide Electric's traditional audio-specific halogen-free sheath, and the Beluga color (caviar black) is selected for its classy and elegant finish.It matches seamlessly with any audio system.“ACROSS3000” and “102 SSC” are marked on the sheath engraving.
Product specifications
| structure | C.I.S. (Cross insulated stabilizer) structure |
|---|---|
| conductor | 102 SSC |
| Wire composition | 3.0Sq (37-3E twist) |
| Insulator cross | High molecular polyolefin |
| Insulator outer periphery | polyethylene |
| exterior | Halogen-free sheath for audio only |
| Outer diameter | 9.2x18.5mm |
| conductor resistance | 0.63Ω/100m (at 20℃) |
| capacitance | 34pF/m (1kHz) |
Oyaide staff review
As expected from 102 SSC, the resolution is good, the sound is finely grained, and the sound field is vast! In addition, the band balance is good, and there are no bands that sting your ears, making the sound soft and pleasant to the ear. The low range has a lot of volume, but it is not too pushy, and the low range is pleasantly spread and silky, and the transparent and clear mid-high range is also attractive.Specifications
| structure | C.I.S. (Cross insulated stabilizer) structure |
|---|---|
| conductor | 102 SSC |
| Wire composition | 3.0Sq (37-3E twist) |
| Insulator cross | High molecular polyolefin |
| Insulator outer periphery | polyethylene |
| exterior | Halogen-free sheath for audio only |
| Outer diameter | 9.2x18.5mm |
| conductor resistance | 0.63Ω/100m (at 20℃) |
| capacitance | 34pF/m (1kHz) |
