Leviton®'s Decora® Strauss™ Transformer-Free and Transformer free impedance Matching Volume Controls, combined with premium installed speakers, can be used to design a no compromise installed multi-room entertainment system that delivers the best reproduction possible from today's ultra-wide bandwidth digital sources. In multi-room distributed audio systems, the source of undesirable speaker coloration (usually perceived as a "muffled" sound) is often the volume control itself, because the audio transformers (AKA: autoformers) used in conventional controls can actually filter the bass and treble frequencies. The Decora® Strauss™ Transformer-Free 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. Moreover, the Decora® Strauss™ Transformer-Free Volume controls eliminate the problem of "saturation" associated with conventional volume controls with their ability to instantaneously handle the full peak output power of any consumer-grade amplifier on the market today.
Leviton® Strauss™ Volume Control, Transformer Free, 4 to 16 Ohm Impedance, 20 Hz to 20 kHz, 100 to 200 W, 2.17 in Mounting Depth, 12 Switch Positions, Wall Mount, Polycarbonate, White, 31 in L x 2.62 in W x 46 in H