ES25 - Focal Audio 12 M (39.37 Feet) Elite Series Speaker Cable for Utopia and K2 Power Speakers ES25 - Focal 12m Elite Series Speaker Cable for Utopia and K2 Power Speakers ES25: 1 Roll of 12m x 2.5mm (224 Strands x 0.12mm) High-performance cables for speakers. Insulator: Flexible PVC Soft Touch. 100% Oxygen Free Cooper (OFC) conductor.