KLOTZ Introduces All-New SEW Cable Series and EnergyCore EC1 Ennovations Knowledge Hub Latest by Elton - March 17, 2025March 17, 2025 KLOTZ has introduced the all-new SEW Cable Series and EnergyCore EC1 - both revolutionary products in their own right in the realms of connectivity. The SEW series is said to deliver an exceptional blend of durability and pristine signal fidelity, incorporating high-end components to meet the rigorous demands of live performances.