Tin-plated OFC with NOBUNAGA Labs' original technology ensures dynamic and delicate mid-bass and excellent sound quality.

By using ultra-fine, high-purity oxygen-free copper with 133 strands, the ADVANCE Upgrade series cables can convey the slightest changes in sound, with natural and lively mid-bass. Tin-plating gives the sound rich reverberation and thickness, and provides a deep, responsive sound with vibrant high frequencies.

-156 ℃ / 72 hours of proprietary low-temperature processing of the wire eliminates distortion of molecular arrangement, reducing electrical resistance, noise and distortion, enabling clear and three-dimensional spatial expression and rich sound with an excellent S/N ratio.

By making the conductor in a circular shape, the flexibility and durability of the conductor itself has been dramatically improved. Signal transmission is stable even when the cable is bent or exposed to sudden temperature changes.

By making the twist direction of the anode and cathode the same, resistance is suppressed, making the flow of the electrical signal smoother.

Left and right separation is improved to prevent cross-talk, with the indepdendent ground consisting of 4 cores. 

ADVANCE series cables are continuous from the connectors to the termination. The absence of a solder joint at the Y-split of the cable reduces electrical resistance.

The termination plug on ADVANCE Upgrade Series cables is 24K gold plated, providing stable connectivity and high conducitivty. In addition, after flash plating, special treatments have been added to prevent problems such as oxidative corrosion in the long run. NOBUNAGA Lab's original plug shell is a matte black design, simple and luxurious. Multiple termination options are available, including 3.5mm and 4.4mm balanced terminations. 

The ADVANCE series connectors are 24K gold plated to suppress contact resistance and ensure high electrical conductivity. In addition, the molding process inside the shell minimizes disconnection problems.

NOBUNAGA Labs shell parts have a slit design, with black and red lines printed in grooves so that they do not peel off after long use (L side: Black / R side: Red).

Multiple connection options are available, including MMCX, 2-pin (0.78mm) and a newly introduced Sennheiser MMCX option specifically designed to work with IE 200 / 300 / 600 / 900 series earphones.