The Decora ® Strauss Transformer-Free Volume ControlS combined with Leviton's Spec-Grade Sound speakers, create a system that delivers the best sound reproduction possible from today's ultra-wide bandwidth digital sources. The Decora Strauss Volume Controls use audio-grade Cermetile resistors to change volume levels while leaving the audio signal unaffected, resulting in ruler-flat frequency response across the entire audible frequency range. Decora Strauss Volume Controls eliminate the problem of “saturation associated with conventional volume controls with its ability to instantaneously handle the full peak output power of any consumer-grade amplifier on the market today. Available in impedance-matched and standard versions