The Radial ProD8 is the ultimate multi-channel DI solution for touring keyboardists, live electronic acts, and playback engineers. If you need clean transformer isolation, bulletproof build quality, and high-density channel conversion without taking up valuable rack space, the ProD8 is an industry reference standard.

The Radial ProD8 is a high-density, high-performance 8-channel rackmount passive direct box engineered specifically for keyboard rigs, electronic drum setups, and large-scale live playback systems. Designed to streamline multi-channel instrument setups on stage and in the studio, the ProD8 packs eight completely independent passive DI channels into a compact, space-saving 1U 19-inch steel chassis.

At the core of each channel in the ProD8 is a custom-wound Radial transformer. These proprietary transformers deliver an exceptionally flat frequency response from $20\text{ Hz to } 20\text{ kHz}$ with high signal handling capacity, allowing high-output digital synths, samplers, and audio interfaces to feed the system without transformer saturation or harmonic clipping. The passive design requires no external power, while providing $100\%$ galvanic isolation between connected instruments and the PA system to eliminate hum, buzz, and ground loops instantly.

For touring setups and complex multi-keyboard rigs, the ProD8 features an innovative redundant routing topology. Each channel is equipped with dual $1/4"$ input jacks configured in a switchable A/B layout or as a parallel thru/input configuration. This enables keyboard technicians to connect main and backup synth rigs directly to the same DI channel, allowing instant switching between primary and secondary playback systems with a single front-panel button press. Built with 14-gauge steel construction and a protective book-end frame, the ProD8 is crafted to endure the rigors of global touring.

Key Features

• 8 High-Performance Passive DI Channels: Eight fully independent direct box channels housed in a rigid 1U rackmount chassis to conserve stage and rack space.

• Custom Radial Transformers: Proprietary transformers provide high signal headroom, ultra-low distortion, and transparent signal transfer across high-output electronic sources.

• 100% Galvanic Isolation: Eliminates hum, buzz, and noise caused by ground loops and dirty AC power lines without compromising audio quality.

• A/B Redundant Input Routing: Dual $1/4"$ input jacks per channel with front-panel selector switches allow seamless switching between primary and backup instrument/playback rigs.

• Reversible Rack Ears: Modular rack-ear design allows the unit to be mounted with either the front or rear panels facing outward, accommodating various rack cable management schemes.

• Tour-Ready Steel Construction: Heavy-duty 14-gauge steel frame shields internal electronics from stray electromagnetic fields and withstands physical road abuse.