Qualiton Vacuum Tube Power Line Filter

Innovation in Power Line Filtering

The Qualiton Filter is a high-performance Vacuum Tube Power Line Filter engineered to eliminate power line noise in high-end audio systems. As the world’s first power filter to feature a vacuum tube-based active electromagnetic interference (EMI) cancellation circuit — powered by 6H30Pi double triodes — it combines broadband filtering, DC blocking, and transient surge protection into a single, audiophile-grade solution. With bidirectional EMI suppression and premium Furutech power components, the Qualiton Filter ensures clean, stable power delivery — unlocking superior detail, dynamics, and silence in your audio chain. More than a filter, it’s a high-performance EMI firewall for your entire audiophile system.