In 2007, OYAIDE created HS-CF and HSR-AG especially for lovers of analog audio.

The 4mm thick headshell is made of CFRP  (Carbon Fiber Reinforced Plastic) which is composed of seventeen layers of prepreg material. It smoothly attenuates interference from vibrations without altering the behavior of the stylus. The socket is made of aluminum with resin press fit inside. The pins are gold-plated brass, and the lead wires are 5N pure silver which are insulated with a double layered silk covering. The rhodium plated lead tip is made of phosphor bronze.

HS-CF SPECIFICATIONS

HS-CF DESCRIPTION

The most essential thing for a headshell is high structural rigidity yet lightweight and capability to attenuate unnecessary vibration. We selected CFRP, Carbon Fiber Reinforced Plastic, for HS-CF as the best material which satisfies such requirements.

Its 4mm thick shell part is composed of seventeen layers of prepreg material (carbon fiber). At the planning phase, we employed single directional alignment with an exception of the center layer in order to gain vibration damping property maximum. By the application of Epoxy resin as a matrix material, its mechanical strength property remains unchanged semipermanently. It is brought to completion by angle type casting to avoid adhesive joints and cutting operation by CNC machining.

The seventeen layers prepreg material is made from T700, highly rigid carbon fiber, manufactured by TORAY and “1K cloth” is employed as its surface material and is made from T300 carbon fiber which is also manufactured by TORAY.

HSR-AG SPECIFICATIONS

HSR-AG DESCRIPTION

0.2mm 5N pure silver wires are manufactured by advanced manufacturing processes such as continuous casting process in high-frequency electric furnace, cold rolling process, annealing operation and drawing process. They are stranded in seven lines to insure enough cross-sectional area and minimize its conductor resistance.

The employment of double layered silk covering insulator realizes clean signal transmission without static electrical charge. Although resinic materials such as PVC or Teflon are easy to be negatively charged, in contrast, silk has electric resistivity to static charge and excellent electrical characteristic. Moreover, the glass fiber sleeve also has high insulation property and resistance to electrical static charge.

The rhodium plated lead tip is made of phosphor bronze and enhances degree of adhesion with contact pins.

Dedicated to Analog - PA-2075 5 PIN TO RCA AND RCA TO RCA

PCOCC-A is a core component of all PA series lineup and is a key factor for high-quality and high-performance only from Oyaide Electric. Each model of PA series has its own concept and identity individualized by materials and structures.

The PA-2075 coaxial cable is a parallel-layout structure designed to be compact and lightweight. In order to reduce conductor resistance and transmit weak analog signal effectively, the overall diameter of the conductor strands was increased to 0.5sq.
The high density spiral shielding structure is composed of PCOCC-A for its highly effective behavior in an ultra compact layout.
The semiconductor (carbon PVC) layer is provided for the purpose of eliminating static electricity without exerting any influence on the conductor.
As an insulator, we selected high polymer polyethylene which has the same permittivity as Teflon but is halogen-free for audio application. The genuinely innovative product is produced by applying the latest materials and structures based on solid data. PA-2075 expands possibility and enjoyment of your life with analog audio.

PCOCC-A

PCOCC copper is a material that includes very few impurities and insures very low levels of signal disturbance. Because of its incidence of no grain boundaries, the signal passes without impediment or distortion. Heating and cooling the PCOCC wire under controlled circumstances yields a densely re-crystallized, highly pure structure called a μ conductor. The resulting product with a mirror finish applied is called PCOCC-A copper. This highly advanced product is made possible by the combined application of high technology and traditional Japanese craftsmanship.

MULTI STRANDING STRUCTURE

A core component of PA-2075 is PCOCC-A signal transmission unit, 0.5sq diameter, and forms the Multi-stranded wire structure. Rather than twisting whole wires, the triple-layered inverted concentric structure is employed for maximum density and uniformity of wire structure and for infilling of internal space and preventing deformation among the wires. Served shielding is applied to infill internal space and to prevent deformation among the wires as well as the conductor. The number of wires used for the served shield is about three times more than the number for the conductor.

SPECIAL CHARACTERISTIC

PA-2075 was created for transmitting ultra-week analog signal. Due to the fact that its electric capacitance is set to 110.0pF/m (1kHz) and characteristic impedance is set to 44Ω, PA-2075 has excellent signal transmitting capability.

THE SEMICONDUCTOR LAYER

A core component of PA-2075 is PCOCC-A signal transmission unit, 0.5sq diameter, and forms the Multi-stranded wire structure. Rather than twisting whole wires, the triple-layered inverted concentric structure is employed for maximum density and uniformity of wire structure and for infilling of internal space and preventing deformation among the wires. Served shielding is applied to infill internal space and to prevent deformation among the wires as well as the conductor. The number of wires used for the served shield is about three times more than the number for the conductor.

INSULATOR & OUTER SHEATH

In addition to PCOCC-A conductor, we employed halogen-free sheathing developed specifically for audio applications. It is RoHS compliant and has excellent vibration damping property due to its compounding ratio of materials. It also has superior electrical characteristic which controls the elevation of relative permittivity and attenuation of electric quantity of bass sound.
The insulator is made from polyolefin which has quarter of permittivity compared to common PVC. We paid careful attention to strengthen the cohesiveness of its insulator and conductor in order to infill random space and maintain a high-quality signal transmission.

CONNECTOR (PA-2075 DR/RR)

The 5PIN plug and RCA plug, designed to compliment the PA-2075 cable, are uniquely able to extract the full potential of the PA-2075. Each contact is rhodium plated to prevent corrosion. The internal insulating material is made from low-dielectric PTEE to extenuate the loss of signal transmission, and the RCA plug attenuates unnecessary vibration by means of its unique inner resin filling that is inserted after soldering has been completed.
Each component of PA-2075 DR/RR is produced and processed in Japan with confidence in our standard ? “Made in Japan”.