At dbx, when they do something, they do it right. With the dbx name on the line, how could they? With their bullet-proof construction, and extraordinary audio performance to rival their looks, finally there s a direct box worthy of the dbx name. Utilizing custom dbx mu-metal-shielded audio transformers, high-quality Neutrik® connectors, and low-noise circuitry preserves the sonic integrity and true characteristics of the signal source. This D/B includes a pad switch that accomodates instrument, line and even speaker level signals. Take even more control of your sound by utilizing the polarity invert switch to set the phase relationship between the direct and mic d sound. As a professional, you don t have time for interference, so dbx included a ground lift switch to solve potential hum and buzz problems due to ground loops. And between the combined shielding of the cast metal chassis and the custom-wound transformer, you can be doubly assured of a clean signal free from interference. All of this sits atop a solid, stable footprint, that will keep the box from being dragged around the stage, and the unique contoured underside allows secure stacking of multiple units. ??Warning: Cancer and Reproductive Harm-