Radial Engineering ProD8 8-Channel Rackmount Direct Box with High-Density Audio Distribution and Low-Noise Isolation Outputs

The Radial Engineering ProD8 is a professional 8-channel passive direct box designed for high-density audio distribution in live sound, studio, and installed systems. Built in a 1RU 19-inch rackmount format, it provides a clean, efficient solution for converting multiple unbalanced instrument or line-level signals into balanced, low-noise outputs.

Each channel features high-quality isolation transformers that help eliminate ground loops, reduce hum, and maintain signal integrity across long cable runs. This makes the ProD8 especially well-suited for keyboards, digital pianos, drum machines, and multi-output electronic setups where consistent, transparent audio conversion is critical.

The unit’s passive design ensures reliable operation without the need for external power, while its rugged steel chassis is engineered for long-term durability in demanding professional environments. Reversible rack ears allow flexible installation in a variety of rack configurations, making it easy to integrate into touring rigs or permanent installations.

Key Features:

• 8-channel passive direct box in 1RU 19” rackmount format
• Designed for high-density instrument and line-level signal distribution
• Transformer-isolated outputs for hum and ground loop reduction
• Ideal for keyboards, synths, drum machines, and multi-output devices
• Passive design—no power required
• Maintains clean, transparent signal conversion
• Reversible rack ears for flexible installation options
• Rugged steel chassis built for touring and studio reliability
• Perfect for live sound, broadcast, and installed audio systems