armonizzatore di linea qvibe ac line harmonizer nordostAdvanced power optimization for audio systems The Nordost QV2 is a hi fi device designed to provide stable, clean power to audio components. It reduces electrical interference and vibration, improving clarity, detail, and sonic accuracy for amplifiers, DACs, preamplifiers, and other high end hi fi devices. Advanced technology and quality materials Equipped with precision Nordost electronic components , the QV2 optimizes power distribution, ensuring