Radial Engineering 4-Play Multi-Output Direct Box with Four Isolated Outputs and Signal Distribution Control

The Radial Engineering 4-Play is a professional multi-output direct box designed for distributing a single instrument signal to multiple destinations with complete isolation and control. Built for live performance, studio recording, and complex routing setups, it allows musicians and engineers to send one source to four separate balanced outputs without signal degradation or noise issues.

At its core, the 4-Play features four fully isolated outputs, ensuring each feed remains clean and free from ground loops, hum, and interference. This makes it ideal for sending a single instrument—such as guitar, bass, keyboard, or playback device—to multiple amplifiers, mixing consoles, or recording systems simultaneously.

Each output is transformer-isolated for maximum signal integrity, preserving tone clarity and dynamic response even over long cable runs. The unit also includes flexible signal distribution control, allowing precise routing for complex stage or studio configurations such as wet/dry setups, multi-amp rigs, or parallel recording chains.

Housed in a rugged steel chassis, the 4-Play is built for touring reliability and demanding professional use where consistent, noise-free signal splitting is essential.

Key Features:

• Multi-output direct box with 4 isolated outputs
• Designed for signal distribution to multiple destinations
• Transformer-isolated outputs eliminate hum and ground loops
• Maintains full tone clarity and dynamic response
• Ideal for guitars, bass, keyboards, and playback sources
• Supports multi-amp and multi-console routing setups
• Clean, passive-style signal integrity (no coloration)
• Rugged steel enclosure for touring and studio durability
• Perfect for live sound, recording, and complex audio routing applications