Radial ProD2 2-channel Passive Instrument Direct Box
Best stereo direct box for keyboardists and touring musicians.
The Radial ProD2 is a versatile 2-channel passive direct box designed to connect stereo keyboards and high-output instruments to PA systems or home recording setups. It features two high-performance Eclipse ET-DB2 transformers, ensuring a wide frequency response and the ability to handle significant signal levels without distortion. This direct box excels at eliminating ground loop hum and buzz, providing a clean and robust audio signal. Its design offers a smooth, warm sound that can help round out the digital edge of modern instruments, acting as a subtle limiter for dynamic sources like digital pianos and drum machines. The passive design means it doesn't require phantom power, simplifying setup and operation. The ProD2 is built for durability and reliable performance in live sound and studio environments, offering a straightforward solution for common audio interfacing needs.
$209.99
Owner Satisfaction
4.7
/ 5
Category Rank
23
/ 120
#23 in Direct Boxes
Price vs Category Average
-21%
Below average
Type
Passive DI
/ Passive DI
Who it's for
- Live sound engineers battling persistent ground loop hum
- Touring musicians needing gear that survives heavy road use
- Keyboardists and pedalboard users maximizing limited stage space
Who should skip it
- Purists seeking absolute high-end frequency transparency
- Engineers working with consoles lacking high-gain preamps
- Performers using low-output pickups or very long cable runs
Performance breakdown
Signal Integrity
Custom Eclipse transformers deliver pristine, noise-free audio for professional environments.
Build Durability
Rugged steel construction withstands the rigors of constant touring and travel.
Ease of Setup
Passive design eliminates the need for phantom power or batteries.
Noise Rejection
Transformer isolation effectively eliminates ground loop hum and electrical interference.
Sonic Character
Adds a subtle, warm saturation that smooths out harsh digital signals.
Headroom Capacity
Handles high-output instruments without introducing unwanted distortion or clipping.
Key Specs
Type
Passive DI
Channels
2
Pads
-15dB
Ground Lift
Yes
Inputs
2 x 1/4" TS
Outputs
2 x XLR, 2 x 1/4" thru
Dimensions
1.88" H x 3.25" W x 5" D
Weight
1.95 lbs
Features
- Stereo direct box for keyboards and stereo instruments
- High-performance Eclipse transformers for superior audio
- Handles high signal levels without distortion
- Eliminates ground loop hum and buzz
- Provides a smooth, warm sound
- Compact and durable for touring
- Rack mountable for professional setups
- Passive design, no phantom power needed
What customers say
The Radial ProD2 is widely recognized as a professional standard, primarily praised for its exceptional build quality and superior noise elimination. Users consistently highlight the heavy-duty steel chassis, confirming its road readiness and durability for demanding use. Sonically, the unit delivers clean, transparent signal transfer, effectively eliminating ground loop hum thanks to its custom transformers. The dual channel configuration is a key feature, simplifying stereo setups for keyboards or DJ rigs. This passive direct box maintains excellent signal integrity without adding unwanted coloration. Overall, the ProD2 is viewed as a reliable, high performance workhorse that justifies its investment by solving common audio interfacing problems dependably.
Know before you buy
No, the ProD2 is a passive device, meaning it does not require phantom power, batteries, or an external power supply to function.
The ProD2 uses high-quality Eclipse transformers that add a subtle, warm character to your signal. This helps smooth out the harsh digital edges often found in modern synthesizers and drum machines.
Yes, the ProD2 is excellent at eliminating ground loop hum and buzz. It features a ground lift switch that disconnects the pin-1 ground path to resolve common noise issues between your instrument and the PA system.
The ProD2 includes a -15dB pad switch for each channel. Engaging this pad reduces the input sensitivity, allowing you to handle high-output instruments without clipping or distorting the signal.
Absolutely. It is constructed from heavy-duty steel and features a compact, book-end design that protects the switches and connectors from accidental damage during transport and setup.
Yes, the ProD2 is rack-mountable. You can use an optional Radial rack kit to secure one or more units into a standard 19-inch equipment rack for a clean, professional studio or stage setup.
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