Rapco CB1 Direct Box

Professional Passive Direct Box for Instruments and Audio Sources
The Rapco CB1 is a passive direct box designed to deliver clean, reliable audio performance in both live and studio environments. It allows instruments, keyboards, drum machines, sub-mixers, and even external speaker outputs to be connected directly to mixers or PA systems without losing sound quality. By preserving clarity and punch while eliminating unwanted coloration, the CB1 ensures your signal translates accurately every time.

Clear Signal Transfer for Live Sound and Studio Recording
Unlike microphone setups that can introduce bleed, distortion, and tone shifts, the Rapco CB1 maintains a pure, uncolored signal path. The transformer-balanced XLR output provides strong isolation, delivering crisp, noise-free audio directly to mixing consoles. Whether on stage or in the studio, this direct box helps retain the full character and depth of modern digital instruments, bass guitars, and synthesizers.

Durable Construction for Touring and Daily Use
Built with a rugged 16-gauge steel and aluminum chassis, the CB1 is made to handle the challenges of live performance and constant transport. Its Uni-box construction with slotted side channels allows for easy stacking or strapping, making it a dependable choice for touring rigs, permanent installations, or portable recording setups.

Versatile Design for Multiple Audio Applications
From high-output bass guitars to line-level keyboards, the Rapco CB1 adapts to a wide range of instruments and devices. Its high input impedance minimizes loading on connected sources, ensuring accurate sound reproduction. With the ability to handle strong line-level signals up to +20dBv at 20Hz, it’s equally suited for traditional instruments as well as modern electronic gear.

Essential Features for Noise-Free Performance
Equipped with a ground lift switch, the CB1 eliminates hum and buzz caused by ground loops. A hi-cut filter reduces unwanted distortion and cleans up harsh frequencies, making it especially useful in professional sound reinforcement environments. The passive design requires no batteries or phantom power, ensuring reliable performance at all times.

A Trusted Solution for Musicians and Engineers
Whether you’re a gigging musician, a sound engineer, or a studio technician, the Rapco CB1 provides an essential tool for clean signal routing. Its dependable build, straightforward operation, and high-quality audio performance make it a long-lasting addition to any professional audio setup.