Gear Hunter

Four-channel passive DI with transformer isolation, ground lifts, and balanced XLR outputs provides clean, noise-free signal routing for instruments and audio gear.

Features:
• Four independent passive DI channels for multiple instruments or sources
• 1/4" inputs with front and rear panel access for flexible routing
• XLR male outputs on the rear panel for professional balanced connections
• Ground lift switch per channel for eliminating unwanted hum and buzz
• Transformer isolation on each channel ensures clean, interference-free audio
• Heavy-duty steel chassis for long-lasting durability
• Compact design suitable for live sound, touring, and studio setups

Professional Four-Channel Direct Box for Stage and Studio Use

The RAPCO Horizon SL-4 is a rugged four-channel passive direct box designed to provide clean, balanced signal conversion for multiple instruments, keyboards, or line-level sources. Built to meet the needs of professional musicians and audio engineers, the SL-4 allows four separate unbalanced signals to be sent directly to a mixing console or recording interface with clarity and reliability. It’s the ideal choice for live performances, recording studios, or AV installations where multiple channels of DI capability are required in one compact and durable unit.
Multi-Channel Design for Efficient Signal Management

The SL-4 offers four independent direct box channels, each equipped with its own 1/4" input and XLR male output. This design simplifies complex setups, making it easy to route multiple instruments or sound sources without additional gear. Whether you’re connecting multiple keyboards, drum machines, or electric instruments, the SL-4 streamlines your workflow while ensuring consistent and interference-free signal performance.
Ground Lift Switches for Noise-Free Operation

Each channel of the SL-4 includes its own ground lift switch, providing the flexibility to eliminate unwanted hum and buzz caused by ground loops. This feature is essential for clean audio in environments where multiple devices are interconnected, ensuring every channel maintains quiet, professional-quality operation. Musicians and engineers can rely on the SL-4 to deliver a balanced and noise-free signal, even in challenging electrical conditions.
Durable Construction for Long-Term Reliability

Crafted with a heavy-duty steel chassis, the RapcoHorizon SL-4 is built to handle the demands of touring, stage use, and studio installations. The reinforced housing protects internal components from impact, vibration, and wear, while the compact form factor allows for easy integration into any rack or audio setup. This durability makes the SL-4 an investment that continues to perform reliably show after show and session after session.
High-Quality Transformer Isolation for Superior Sound Integrity

Each channel of the SL-4 is equipped with a high-quality transformer that provides electrical isolation between input and output. This ensures optimal signal integrity and prevents interference between connected devices. The transformer design helps maintain the natural tone of instruments while converting high-impedance signals into low-impedance balanced outputs suitable for professional audio systems.
Flexible Connectivity for Professional Audio Applications

With both front and rear panel access to 1/4" inputs and XLR outputs, the SL-4 offers flexible connection options for fast setup and efficient cable management. This makes it perfect for both portable rigs and fixed installations, where quick accessibility and organized routing are key. From stage monitoring to live recording, the SL-4 adapts easily to any signal routing requirement.