B.M.C. MonoS Monocrystalline Silver Cable

Monocrystalline

What exactly is this? At Japan's Chiba Institute of Technology a special casting process was developed by Prof. Ohno, which enables a cable extrusion resulting in a very long single crystal silver wire.

OCC = Ohno Continuous Casting

 

Silver

High-purity silver is the metal with the best conductivity. Ordinary silver cables are known for airy openness but also for having a distinct, slightly a bright character. A significant reason for this tendency is the fact that these cables basically consist of small crystal pieces, apporoximately 10mm in length, connected to each other. So in 1m of cable there are about 100 “connections“ that have to be crossed, and the delicate music signal is not able to pass through smoothly. Furthermore, these connections are prone to corrosion and the effects of aging, which may cause the sound quality to gradually decline.

 

Mono Crystal

Monocrystalline cables are different, because they virtually consist of a single crystal. The ensuing lack of “internal connection impedance” has a very positive tonal impact. Profound transparency combined with perfect balance allows music to breathe.

Obviously, monocrystalline silver cannot be cheap due to its time-consuming, patent-protected manufacturing process with low throughput, a process offered only by very few licensed manufacturers, - and the choice of material.

 

Solid Core

The controlled core design is the logical extension of the basic principle of monocrystalline silver. A litz wire, however, would again allow imperfect cross-connections between the single wires and furthermore increase the corrosion-sensitive surface.

Solid core is hardly vulnerable to environmental influences. And since there is only one or few matched conductors for each signal, there cannot be any imperfect interconnection.

Cable Structure

The construction of the cable is consistent as well: The three transmission paths of a balanced cable, signal plus (hot), signal negative (cold) and ground all have the same conditions by three identical conductors of monocrystalline solidcore 6N silver. They are intertwined in order to keep the inductance low.

The shield with 100% coverage consists of a metalized mylar film and a fine mesh of silver plated copper wire. The shield should be used only as a shield, not for the signal transfer.

The distance between the signal conductors and the shield is relatively large for keeping the straightforward character of an unshielded cable.

 

Configurations

XLR

The balanced XLR cable uses three internal monocrystalline solid core silver wires, one for each signal path, including ground as the third signal connection. The shield is single side connected to the "male“ XLR plug. All our plugs have pins made of monocrystalline (OCC) copper. An additional gold plating ensures perfect contacts and a long lifetime.