Atlas Ailsa Duo OCC XLR Interconnects

The Ailsa Duo OCC XLR is a wide-bandwidth solid-core interconnect featuring our new 'Duo' independent dual-drain screen topology, a further refinement of the proven Atlas dual-drain system.

Designed to maximise the performance of high-performance audio systems using the increasingly popular XLR connectors, the Ailsa Duo XLR features completely separate, independently screened solid-core OCC copper conductors for hot (+) and cold (-) connections, enhancing rejection of unwanted signal-degrading noise. Solid-core conductors offer significant improvement over multi-strand, with lower distortion and greater consistency in performance.

Termination is with aluminium alloy dark Chrome XLR connectors with silver-plated OCC copper pins. Pins are of the same grade OCC copper as the conductors, which, in tandem with solder-free cold-weld connection method, ensures excellent signal continuity.

Combined with a precision-twisted assembly – further increasing rejection of RF and EM interference – the Duo XLR offers clear, easily demonstrable performance gains with more than a hint of the coherence and tonal accuracy of Atlas High End Mavros and Arran products.

This latest generation of Ailsa reveals a neutral, detailed but engaging presentation without artifice or exaggeration, offering fresh insight into music both new and familiar. No other cable looks like it, or performs like it.

Length Options

Ailsa Duo OCC XLR is available in the following factory-terminated lengths:

• 0.50 metres
• 0.75 metres
• 1.00 metres
• 1.50 metres
• 2.00 metres
• 3.00 metres
• Custom lengths are also available - please call us with your requirements.

Technology

• OCC XLR Connector - Atlas XLR combines a lightweight aluminium alloy body with precision-fit OFC/OCC connectors and solder-free construction.
• OCC Copper - OCC (Ohno Continuous Casting) process was developed by Professor Ohno, from the Chiba Institute of Technology, to manufacture a very high purity single grain copper or silver. There are only a handful of companies in the world manufacturing via this method.
• Microporous PEF - A unique, low density dielectric material, phase stable at room temperature, which offers significant performance improvements over solid dielectric designs.
• 4-Core + Screen Construction - Individually matched conductors (one pair for signal path, the other pair acts as the return conductor) enclosed within a protective woven screen. Combined with the dual-drain system which avoids distortion of the screening braid during assembly, which can change the RF impedance of the cable and adversely affect performance.

Specifications

• Construction: Duo Solid
• Material: OCC Copper
• Dielectric: Microporous PEF
• Screen: Foil / OFC Braid
• Capacitance: 40.05 pF/m
• Inductance: 0.798 µH/m
• Resistance: 0.0971 Ohms/m
• Outside Diameter: 4.8 mm (per-conductor)
• Colour / Finish: Titanium Grey Fabric

More Information

• Ailsa Duo OCC XLR, by Atlas Cables
• The Ear Review (Jan 2026) of Atlas Ailsa Duo OCC XLR