This range uses labour-intensive techniques. We combine high-purity copper and silver, chosen for their excellent sound reproduction characteristics. Both the copper and silver used are monocrystalline, ensuring the removal of virtually all impurities. The entirely handcrafted construction is carried out using different dielectrics and multiple layers of shielding, wich is essential for a

completely faithful signal transmission.

Padouk wood, handcrafted by luthier Jorge López, was chosen for its excellent ability to absorb unwanted vibrations. 
All of these techniques are used to protect against electromagnetic interference (EMI) and radio frequency interference (RFI).

These characteristics give the Ra cables a solid construction and a full, clean and smooth sound, for a non-fatigue

and pleasant listening experience.

Due to complexity of its artisanal production, only limited units are manufactured each year.