LUNA CABLES GRIS Series Neo Vintage Copper Conductor Jumper Cable

Product Concept

Jumper cables used for single-wire connection of bi-wiring compatible speakers are often replaced with the included metal plates or inexpensive cables. However, that contact point exists in the signal path from the amplifier to the speaker unit, and its impact on sound quality cannot be ignored.

The Luna Cables GRIS Jumper uses the same 1 x 14AWG (41 x 30AWG) tin-plated Neo Vintage copper conductor as the GRIS Speaker cable. By unifying the materials and structure with the speaker cable, the musicality of Luna is consistently maintained throughout the entire signal path. Terminals are available in three types: spade/spade, banana/banana, and spade/banana.

Luna Cables: Handmade cables from Montreal by craftsmen

Luna Cables is a handmade audio cable brand based in Montreal, Quebec, Canada. All products are produced in small quantities in a workshop, with each cable finished by hand. The care and attention to materials that are absent in mass-produced cables support the musicality of Luna Cables.

■ LCNV Conductor (Luna Cable Neo Vintage): A unique conductor created by vintage processing machines

LCNV is an in-house copper conductor produced using Luna Cable’s proprietary alloy and method. Instead of using the latest CNC machines, vintage wire processing machines are intentionally used, resulting in a conductor with a distinctive crystal structure and flexibility that modern precision machinery cannot replicate. This approach of applying the 'goodness of old things' to modern hi-fi is at the core of the Luna sound.

■ Waxed Cottondielectric: Vibration control and musicality provided by natural materials

LCNV also uses waxed cottondielectricIt is coated as.dielectricThis term refers to the electrical characteristics of the insulating material covering a conductor. The lower the dielectric constant of the material, the less unnecessary interference there is with the signal waveform. Cotton impregnated with wax has a lower dielectric constant compared to plastic-based materials, providing high vibration-damping effects while minimizing interference with the signal. It absorbs fine noise caused by external vibrations, enhancing the focus of sound while delivering smooth and rich musical expression without a sense of pressure.

■ All contact points are hand-soldered, showcasing uncompromising craftsmanship.

All Luna Cables are hand soldered connection by connection (All connections hand soldered). The meticulous contact quality, unattainable by mass production with machines, directly contributes to signal clarity and long-term reliability. This labor-intensive process is one of the reasons Luna Cables can stand shoulder to shoulder with top audio brands.

■ Cotton Jacket: Unified natural materials from inside to out

The exterior uses a flexible, easy-to-handle cotton jacket. It has moderate flexibility and sound absorption, unlike synthetic resin tubes, and suppresses unnecessary tension and vibration propagation during installation. Luna's philosophy of thoroughly unifying materials with natural substances from the inside out is also reflected here.

Main Features

• LCNV 14AWG Conductor (41 x 30AWG):Uses 14AWG Neo Vintage copper conductors with the same specifications as the GRIS Speaker. The twisted wire structure, made by bundling 41 ultra-fine wires, achieves both flexibility and low resistance. By fully unifying the materials and structure with the speaker cable, it ensures consistency throughout the entire signal path.
• Tin Plating Treatment:The surface of the LCNV conductor is tin-plated to prevent deterioration caused by aging and oxidation. Even with long-term use, the contact quality remains stable and maintained.
• Waxed Cotton:dielectric：Cotton impregnated with wax has a low dielectric constant, minimizing interference with the signal, while the natural vibration-damping effect helps improve the focus of the sound.
• Cotton Jacket:The flexible and easy-to-handle cotton exterior allows for smooth installation between the speaker binding posts.
• Gold-Plated Spade / Straight Banana Connector · Full Contact Hand Soldering:You can choose terminals with gold-plated spade or straight banana connectors, and you are free to specify the combination on both ends (spade/spade, banana/banana, spade/banana) when ordering. All contact points are hand-soldered by craftsmen.

Replacing included jumper plates or inexpensive jumper cables with the Luna GRIS Jumper is one of the most cost-effective upgrades to bring out the full potential of your speaker system. This improvement can be appreciated not only by users of GRIS Speakers but also when used with speaker cables from other brands.