Features
"102 SSC" - Oyaide Electric Precision Conductor
- To avoid impurities as much as possible, only virgin copper that does not contain any recycled copper is used in accordance with JIS C1011.
- Peeling process is applied to remove 100% of impurities attached to the surface.
- In order to facilitate the flow of electrical signals through the surface layer of the conductor, the strand is made finer using a natural diamond die to improve the surface smoothness of the strand.
- The stranded wire is processed with a processing accuracy of ±1μm, far exceeding the standard error tolerance of ±8μm.
- Two annealing processes are used to eliminate mechanical stress distortions in the strands.
- Thorough product control of manufacturing control values, maintenance, shipping days, etc. Achieved the highest conductivity of 102.3% IACS.
Patented "3E Stranded" Technology for Twisting Three Different Sizes of Wires Together
The 3E stranding structure is a concentric stranding arrangement of stranded wires in a lump-sum twisted wire conductor, and by arranging three different strand diameters, the stranding arrangement is made denser. By arranging three different strand diameters, the strand arrangement is made denser, enabling a finer conductor structure and improving conductor characteristics.
The strands of these three different conductor diameters are arranged geometrically to minimize the gaps between strands and improve strand density.
Furthermore, the outer diameter of the strands has been downsized to maintain a stable and highly accurate outer diameter, and the cross section after twisting is a perfect circle, an unprecedented conductor structure in the world. This ensures uniform adhesion between the insulator and conductor, eliminating random thickness of the insulation material and making it uniform.
C.I.S. Structure with Air Layer Damper
Oyaide's original cross insulated stabilizer structure (C.I.S. Structure) is used as a damper to lower the capacitance and improve the high-frequency characteristics while attenuating vibrations with its excellent stabilizing effect.
The basic architecture adopts a coaxial layout to maximize the C.I.S. Structure, which supports the center conductor at a point rather than a surface to minimize mutual interference between the center conductor and the outside. The internal air damper layout is a completely different idea.
The conventional approach to vibration damping is to use compounds to dampen internally generated vibration. The C.I.S. is a new concept. The C.I.S. structure not only has an excellent stabilizing effect, but also contributes greatly to the improvement of electrical characteristics. The air layer is highly effective in significantly reducing capacitance.
The insulation material that makes up the C.I.S structure is polyolefin, which has an extremely low dielectric constant of 1/4 that of PVC. These unique structures and materials give the ACROSS 3000 an unrivaled agile response and stress-free spatial expression.
Oyaide's New "SGSL" with Pure Silver and 24K Gold-plated Spade Lugs
A total of eight "SGSL" Spade-lugs, newly developed by Oyaide Electric as speaker terminal connection plugs, are installed at both the left and right terminals. The "SGSL" is exquisitely tuned by applying silver plating to the base to extend the high-frequency range while taking advantage of the long-term stability and non-habitual phase characteristics of the mid-range range provided by gold plating.
The base material is made of lead- and iron-free, RoHS-compliant Japanese brass. The tip is rolled from a 15mm-diameter round bar, then punched and bent using a dedicated die. The tip insertion part has a two-stage shape (mm/8 mm) to fit a wide range of speaker terminals.
The heat-treated body is mechanically barrel polished, and then buffed and polished one by one by our polishing craftsmen. The perfectly polished body is then finished with a two-layer plating process consisting of a sterling silver plating base and thick 24K gold plating.
A highly rigid stainless steel set screw with a diameter of 5 mm is used for the 4 mm diameter cable feed-through. This eliminates the gap between the body and the screw, and the cable and plug body are secured by the two screws to ensure a secure contact and fixation.
The "SGSL" and cable are joined by a torque-controlled screw tightening. In addition, the plug and cable are completely sealed with adhesive-backed, cross-linked polyolefin heat-shrink tubing for durability and conductor oxidation protection.
Specs
Model name: ACROSS 3000 SGB
Cable: ACROSS 3000
Cable Structure: C.I.S（Cross Insulated Stabilizer）Structure
Conductor Material: 102SSC
Conductor Size / AWG: 3.0sq（37/-3E）/ ≈13AWG
Cross Insulation Material: Polymer Polyolefin
Inner Jacket Material: Polyethylene
Outer Jacket Material: Halogen-free Polyolefin sheath for audio
Cable Diameter (Nominal）: 9.2×18.5mm
Conductor resistance: 0.63Ω/100m (at 20℃)
Capacitance: 34pF/m (1kHz)
Banana Plug: SGBN (Phosphor Bronze material , Pure silver + 24K gold plating）
