Radial Sb-5w

The Radial SB5W is a stereo direct box designed to fit in a standard single-gang electrical wall plate. This provides AV integrators with a simple yet effective means of connecting an unbalanced analog audio source, such as the headphone output from a laptop, iPhone, tablet, or line level source like a CD player, to a balanced audio system via a permanently mounted interface.

The design features all-steel construction for maximum durability and a fully shielded back box to help eliminate interference from electromagnetic fields caused by dimmers, ballasts, power cables, and transformers. Front panel 3.5mm TRS and RCA connectors provide a standard interface for any stereo source, and a fully variable level control makes volume adjustments easy. Inside, the SB5W uses two high-quality transformers to convert the high impedance signal to a balanced low impedance, capable of driving cables up to 100 meters without noise. The transformers also help eliminate hum and buzz caused by ground loops and stray DC voltages that are common when interfacing consumer-grade audio devices with professional audio systems. This is complemented by a ground lift switch for added convenience. If channel count is an issue, a recessed mono switch passively sums the stereo signal to a single output. The outputs feature screw terminals with tie-down points for tie-wraps, making installation fast, efficient, and permanent.

Finished in a durable black powder coat and sized to fit a standard Decora wall plate, the Radial SB5W looks sharp with any color faceplate while providing clear labeling for easy manipulation for both professionals and novices alike.