Providing elegant and aggressive, vast and clear soundscape



"TUNAMI" has broken new ground in the world of power cables with its high power transmission using an ultra-thick 5.5sq. conductor(≈10AWG) and strict 3-layer sealing. With its aggressive sound and high performance, TUNAMI was a milestone in the history of power cables.

In 2013, with the end of supply of PCOCC-A conductors, the first generation "TUNAMI" was unintentionally discontinued.

However, in 2014, "TUNAMI V2" inherited the life of the original "TUNAMI" with the Oyaide's own precision conductor "102 SSC".

In order to inherit the concept of the first generation model, the structure of "TUNAMI V2" is the same as the first generation model. It has been thoroughly refined with the 102 SSC precision conductor, giving it a new look and feel.

From the deep stillness of TUNAMI, you can even sense the atmosphere of pre-performance of sound source. Since the day of our establishment in 1952, we at Oyaide Electric had opportunities to apply a number of state of the art technologies specific to our specialized cable store. Our products reflecting such advantages offer unmatched performance.

TUNAMI GPX V2 embodies an ideal fusion of State-of-Art technology and craftsmanship. It equipped with P/C-046 special edition plug.


"102SSC" - 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.
Click here for more information on 102 SSC.

With a wire cross-sectional area of 5.5sq., it is capable of transmitting high power up to 30 amperes at a withstand voltage of 600V.


It provides high power transmission of 600V maximum 30 amps withstand voltage and aggressive response.

Short-pitch stranded wire twisted at 1.15 times the normal tension eliminates random gaps in the conductor and suppresses sound quality degradation caused by wire-to-wire distortion.

We also paid close attention to the adhesion rate between the insulator and conductor. The insulator and conductor are evenly adhered to each other, eliminating random gaps and degradation of sound quality caused by interline distortion.

Polymer Polyolefin with Excellent Electrical Characteristics for Insulation to Reduce Signal Loss

Polymeric polyolefin with excellent electrical characteristics is used for the insulation coating of the conductor.
Compared to ordinary PVC insulation, it has an extremely low dielectric constant of 1/4, which reduces signal loss and produces a less muddy reproduction sound.

Triple Layer Shielding to Shut Out Noise

The first layer is an electromagnetic wave absorber, the second layer is a carbon layer, and the third layer is a copper foil.

The first layer converts the electromagnetic waves caused by the inevitable disturbance of magnetic flux into heat energy by mixing the electromagnetic wave absorber into the compound. When electricity flows through the cable, weak vibrations are generated, and the vibrations cause corona discharge in materials charged with static electricity.

Therefore, the second layer is a semiconductor layer (carbon layer) to promote the release of static electricity without affecting the conductor.

The third layer is a copper tape shield to protect the conductor from external noise. The third layer is a copper tape shield to protect the conductor from external noise, and the copper foil shield is bonded to the drain wire in close proximity to the earth ground to improve the signal-to-noise ratio.

Not only external noise, but also internally generated noise and spark noise caused by vibration are shut out at a high level.

Experience the ultimate in noise protection, the power of the triple layer shield.

P/C-046 Special Edition in Italian red color, Exclusive only for TUNAMI GPX V2

The terminals of the power plug and IEC connector of "TUNAMI GPX V2" are individually buffed and polished by craftsmen.

"TUNAMI GPX V2" will be plated with gold/palladium specially arranged for the buffed bronze terminals (P/C-046 Special Edition).

The thickness of the plating is optimally-adjusted for the TUNAMI GPXe.. The Italian red outer cover foreshadows the passion put into the "TUNAMI GPX V2".


Model Name TUNAMI GPX V2
Cable (Length) TUNAMI V2(1.8m)
Conductor Material 102 SSC (Hot/Cold)+ OFC (Ground wire)
Conductor Size / AWG 5.5sq(69/0.32mm)/ ≈10AWG
Insulation Material Polyolefin Polymers
Shield Layer 1 - EMI Absorption Polyolefin
Layer 2 - Carbon PE Separator
Layer 3 - Copper Foil
Drain Wire Copper wire 0.75sq(30/0.18)/ AWG18
Outer Jacket Material Polyurethane
Cable Outer Diameter 15.0mm
Power Plug / IEC Connector P-046/C-046 SPECIAL EDITION - Phosphor bronze buffed finish (Gold +Palladium plating)
Rated V/A 125V/15A<PS>E
Release Date 2014/10/17