Rapco Horizon DB-1 Passive Direct Box

The Rapco Horizon DB-1 is a passive direct box designed for converting high-impedance instrument signals to low-impedance balanced outputs in live sound and studio environments. It enables clean signal interfacing for musicians and audio engineers, supporting direct connection of instruments to mixing consoles. This makes it ideal for stage and recording applications where noise-free signal transfer is critical.

This direct box uses a passive transformer-based design to convert 1/4" instrument inputs to balanced XLR outputs. A ground lift switch is included to help reduce hum caused by ground loops. The unit provides a simple signal path suitable for a wide range of instrument and line-level sources.

In practical use, the DB-1 supports reliable performance in portable and installed audio systems. It is suited for musicians, technicians, and venues requiring dependable signal conversion without the need for external power. The metal enclosure is designed for repeated use in demanding environments.

Key Features

• Passive Direct Box Design: Converts high-impedance instrument signals to balanced low-impedance output
• Transformer-Coupled Output: Provides signal isolation for clean audio transfer
• Ground Lift Switch: Helps reduce hum and noise caused by ground loops
• 1/4" Input and Thru: Supports direct instrument connection with loop-through capability
• Steel Enclosure: Built for durability in live sound and touring applications

Technical Specifications

Model Number
DB-1

Signal Type
Passive

Input
1/4"

Thru Output
1/4"

Main Output
XLR

Ground Lift
Yes

Construction
Steel enclosure