The Reference XLR PRO Interconnect, introduced July 2025, upgrades any sound system, regardless of where it is used. This high-tech interconnect consists of three conductors with different cross-sectional thicknesses. This reduced the unwanted skin effect. In addition, all conductors in it are separately insulated, and the whole structure is double shielded. The cable is terminated on one side with Neutrik XLR plugs and on the other side with Neutrik XLR sockets, which are soldered with silver.
Conductors:
The Reference XLR PRO Interconnect achieves its goal by increasing the conductor’s cross-section is one of the elements that enhances the overall performance of the XLR cable. According to Ohm’s law, the resistance of the conductor is inversely proportional to its cross-section. Reducing resistance ensures that the quality and level of the transmitted electrical signal do not decrease. A larger cross-section also improves resistance to electromagnetic interference (EMI) and radio frequency interference (RFI), which is crucial when there are many electrical devices nearby. This is particularly important for high-quality analog audio signals.
Shielding:
The shielding braid is made of copper with a minimum 99% coverage which ensures very high resistance to any interference. To further increase the shielding effectiveness, a layer of metalised Mylar foil was used, which ensures 100% coverage density. And, what does double shielding provide? The braided copper shield is thicker and thus, absorbs more electromagnetic interference (EMI), especially at lower frequencies. On the other hand, the Mylar foil, which is the second shielding layer, absorbs less interference but offers better protection across a wider frequency spectrum. Double shielding is therefore an optimal solution, providing broad-frequency protection against interferences and their negative impact on the signal
Spiral Litz Technology:
With the Spiral Litz Technology each braid is made of separately insulated and twisted wires which enables them to act as separate conductors, not as one large conductor. The total voltage of power amplifier’s output flows in each of them. This type of solution prevents electrons from jumping from one strand to another and thus, eliminates the loss of the so-called subtle information. The most important benefit of this technology is the uniformity of the current distribution throughout the cable cross-section that increases the efficiency of current transmission. Skin-effect is reduced to minimum. Furthermore, the conductors’ insulation prevents copper oxidation.
No skin effect:
The higher the frequency transmitted through the line, the more the current tends to flow on the surface of the conductor. This occurs due to variable magnetic interactions of the current with itself. This is not a desirable phenomenon because with increasing frequency, the utilised surface area of the conductor decreases, resulting in increased cable impedance for high frequencies. The signal begins to flow unevenly (including phase shifts), leading to the loss of very quiet components, described as a lack of air or subtle information in listening experiences. Therefore, the Reference PRO XLR cable, features three different conductor thicknesses.
Twisted cores:
The use of the spirally twisted braid reduces the cable’s sensitivity to interference. As a result, the current induced in one conductor has the opposite direction to that in the neighbouring one and thus, the disturbances cancel one another. This solution was invented in 1881 by Alexander Graham Bell (scientist, inventor of the telephone and dozens of other telecommunications inventions), who demonstrated that this arrangement reduces the impact of EMI and mutual interferences called crosstalk.
The Reference XLR PRO Interconnect Features:
- Conductor: High-quality 99.9999% OFC copper (6N)
- Connector type: XLR (Neutrix X series)
- Solid, modified Neutrik metal plugs with silver-plated pins
- Pure silver soldering
- Cable diameter: 8.2mm
- Cable flexibility, cable refraction diameter: 65mm
- Conductor cross-section: 2 x 1.1mm2
- Double shielding: Mylar foil + copper braid with a minimum 99% coverage
- Conductor resistance: 25 Ohm/km
- Mutual capacitance of conductors: 115 pF/m
- Low-capacitance LDPE dielectric insulation
- Spiral Litz Technology
- Multi-Gauge Core Technology
- Shape: Round
- Enhanced resistance of insulation with a quadruple PVC/PE coating allows the cable to be laid under plaster or concrete without risk of damaging it.
Pricing
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Perkune I Professional audio service