●USB-1.0SP 1m ●USB-1.0PL 1m
** Extra lengths by 10cm is available.

●Principle and structure
Problems of conventional USB cables

Did you know that the signal line and power supply line are installed together in parallel in all of conventional USB cables? It is widely known amongst audiophiles that the radiation noise of power cables affect signal cables and damage sound quality when a signal cable and a power cable are installed in parallel or come into contact with each other.
However, most USB cables available on the market have the signal line and power line in one cable together - we can easily imagine how sound quality is deteriorated by this structure. Furthermore, the power supply lines in USB cables transmit a large amount of ‘noise’ that is generated by the P/C (computer). This ‘noise’ seriously degrades the quality of the signal being transmitted and therefore, audio sound quality is greatly reduced.

Attempts to shield on cable from the other (inside the same cable) is not effective in avoiding influences from the power line to the signal line.

Some high-end USB cables made by audio cable manufacturers have independently shielded signal line and power lines, however, these two lines are in close proximity in the same cable and it is impossible to avoid influence from the power line to signal line.

In addition, this structure is constantly causing noise reflections inside the outer shielding tube which will significantly damage sound quality.

A world first ! Perfectly separated and independent signal line and power supply line !

USB-1.0SP and USB-1.0PL are equipped with two independent cables consisting of a two-core shielding structure with a 100% shielding effect obtained by using a copper foil. This is the only USB cable which is successful in stopping noise interaction between the power and signal lines.

We can obtain further improvements in sound quality by employing two A-Plugs to separate the Signal and power lines from the output terminals.

USB-1.0SP employs two A-Plugs for the output side to achieve perfect separation of the signal line and power supply line.

A P/C is normally equipped with several USB outlets conveying the same signals, therefore, you can bring out the Signal and Power lines separately from the output, resulting in a dramatic improvement in sound quality, channel separation and S/N ratio.

A very thick 0.8_ PCOCC-A solid core conductor is used, fully exploiting the limits of USB connectors

USB-1.0SP and USB-1.0PL USB cables are 100% Made in Japan and are equipped with a very thick 0.8_ Solid single-core PCOCC-A conductor (the highest diameter USB cable currently available on the market) to achieve an overwhelming D range and F range that was impossible to create by conventional USB cables.

Our maximum technology to realize the highest-end sound quality, i.e. l Conductor: Thick 0.8_ Solid single-core PCOCC-A (the highest diameter USB cable currently available on the market)

The purity of PCOCC-A (annealed PCOCC which does not have crystal grain) exceeds the high purity copper such as 6N when it is made into a cable, and its overwhelming conductivity is far superior.

We also applied PCOCC-A as a solid single-core to avoid stray current(Strand jump phenomenon) and to achieve an accurate digital transmission, resulting in a clear and blur-less sound image, wide and deep sound field with an accurate phase and a full three-dimensional acoustic field.

Signal transmission concept of Single-core wire and Stranded wire.

Maximum technology without compromise into the terminal and cable structure as well.

l Original USB plug made from a solid block of 2017S air craft grade aluminum alloy to improve vibration control effect.

l Outer shielding with Carbon SF tube to prevent exterior noise, radiation noise generated from the cable and the electrostatic charge of the cable itself, leading to a perfect separation of the signal line and power supply line.

l The connection between cable and USB plug is made with a high grade solder for audio use. It is not possible to use this solder for conventional molded USB cables.

Free for ordering any extra length.

As most conventional USB cables are molded cables, you are unable to order a specific length suitable for your use, however, you can order any length of USB-1,0SP and USB-1.0PL for your equipment because our USB cables are fully handmade by skilled craftsmen.