RapcoHorizon DB Direct Box | DB-1SL

The RapcoHorizon DB Direct Box line is built for engineers and musicians who need a dependable passive DI solution without the complexity of active circuitry. These boxes require no batteries or phantom power, making them ideal for stage plots where power management is a concern, or for use in environments where a simple, road-worthy signal conversion tool is essential. Whether feeding a front-of-house console from an acoustic guitar, keyboard, or bass rig, the DB Direct Box family delivers transformer-isolated, balanced output at mic level through a standard XLR connection.

Designed for touring musicians, live sound engineers, and installed AV applications, the DB Direct Box is built around a discrete transformer for reliable impedance matching from Hi-Z instrument sources to Lo-Z console inputs. The loop-through 1/4-inch jack preserves the signal path for a stage amplifier, and the panel-mounted ground lift switch eliminates ground loop hum in virtually any venue or system configuration. Compact and durable enough for permanent rack-adjacent installs or daily gigging, this passive DI handles the workload without adding variables to the signal chain.

Compared to active DI alternatives, the passive design of the DB Direct Box eliminates potential coloration from preamp stages and removes dependency on power sources — a meaningful advantage in fly-date touring scenarios or permanent installs where long-term reliability matters more than extended feature sets.