Radial Engineering ProD2 – Stereo Passive Direct Box for Keyboards, Instruments & Line Sources

The Radial ProD2 is a professional stereo passive DI box designed for keyboards, electronic instruments, drum machines, and any high-output audio source requiring clean, reliable signal conversion. With its dual custom-wound transformers, rugged 14-gauge steel chassis, and noise-reducing design, the ProD2 delivers exceptionally flat frequency response, low distortion, and bulletproof durability for touring and studio environments.

Key Features

• Dual passive design: Two independent DI channels ideal for stereo keyboards, DJ rigs, and multi-output instruments.
• Custom Radial transformers: Handle high signal levels without saturation while maintaining linear 20 Hz–20 kHz response.
• -15 dB pads: Tame hot sources like synthesizers, samplers, and stage pianos.
• Ground-lift switches: Quickly eliminate hum and buzz caused by ground loops.
• Road-ready construction: 14-gauge welded I-beam chassis prevents PCB stress; full-bottom non-slip pad keeps the DI stable.

Customer Benefits

The ProD2 delivers clean, consistent performance on any stage or studio, ensuring your stereo instruments sound the way they should. Its transformer-based passive architecture makes it virtually impossible to overload, making it a reliable choice for keyboardists, backline techs, sound engineers, and touring professionals.

Quick Specs

• Channels: 2 (stereo passive)
• Transformers: Custom Radial Eclipse
• Frequency Response: 20 Hz – 20 kHz
• Pad: –15 dB per channel
• Ground Lift: Yes, per channel
• Construction: 14-gauge steel, I-beam chassis

What’s in the Box

• Radial ProD2 Stereo DI Box
• User documentation

Use Cases / Ideal For

Keyboards, drum machines, DJ controllers, synthesizers, acoustic-electric instruments, multi-output rigs, studio recording, live sound, and touring setups.

Compatibility

Works with any balanced XLR input on mixers, interfaces, and stage boxes. No power required thanks to its passive transformer design.

Pros & Cons

✅ Pros:

• Extremely reliable and road-proof
• Handles hot signals effortlessly
• Transparent, flat frequency response
• Stereo configuration ideal for keyboards

⚠️ Cons:

• No active gain (passive design)
• Heavier than compact plastic DI boxes

The Radial Engineering ProD2 is a touring-grade stereo DI that delivers exceptional clarity and durability—available now at Soundium.