The Radial Pro48 Active Direct Box is a powerful, high-headroom DI designed to capture modern instruments with clarity, punch, and exceptional detail.
Engineered for today’s high-output active basses, acoustic-electric guitars, and keyboards, the Pro48 delivers clean, accurate signal conversion with the reliability and sound quality professionals expect from Radial. The Radial Pro48 is an active direct box powered by standard 48V phantom power, allowing it to handle hot instrument and line-level signals without distortion or compression. Its Class-A circuitry provides a wide dynamic range and extended frequency response, making it especially well-suited for instruments with active electronics or strong transient content that can overwhelm passive DI boxes. A -15 dB pad switch accommodates high-output sources, while a recessed ground lift helps eliminate hum and buzz caused by ground loops. Built into Radial’s signature 14-gauge steel enclosure, the Pro48 is designed to withstand the demands of touring and daily professional use, making it a dependable choice for both studio recording and live sound applications. Exceptional sonic performance, great natural tone and an affordable price tag! The Radial Pro48 truly represents a breakthrough in value.
Radial Pro48 Active Direct Box Features
- High performance active direct box
- Increased dynamic range and headroom
- 48V phantom powered with switching supply
- Ideal for acoustic guitar and bass
- Ultra-flat frequency response with extended highs
- High input impedance reduces loading
- Provides extra "reach" and "air" in your sound!
- Ideal for active acoustic guitars and basses
- Great for keyboards and drum modules
- Equally wonderful for live or studio
- Huge 9-Volt internal rail voltage for extra headroom
- Handles loud transients without choking or clipping
- No batteries required, works with phantom-power
Radial Pro48 Active Direct Box Applications
- Using the Pro48 with acoustic guitar - The Radial Pro48 is the perfect interface for acoustic guitar on stage. The high internal rail voltage is able to handle the dynamics of today's active instruments without choking and deliver the smooth, natural sound of the instrument.
- Using the Pro48 with bass - Whether you use an active or passive bass, the Radial Pro48's exceptional signal handling is able to capture the sound of the instrument without distortion or adding artifact. And with proper loading, your bass will sound round and smooth when you record or play live.
- Using the Pro48 with acoustic instruments - With more headroom and less distortion the Radial Pro48 is a great all-round active direct box for instruments of all types. This makes it particularly effective with instruments that can sound 'peaky' or 'edgy' when amplified.
Radial Pro48 Active Direct Box Specifications
- Technical Specs:
- Audio Circuit Type: Proprietary analog circuit with low-noise op-amp
- Frequency Response: 20Hz ~ 20kHz (± 1.5 dB)
- Dynamic Range: 99dB
- Noise Floor: -82dB below 0dBu
- Equivalent Input Noise: -86dBu
- Maximum Input: +9dBu
- Phase Deviation: +28º at 20Hz | +1º at 1kHz | -2º at 20kHz
- Total Harmonic Distortion: 0.001% @ 0 dBu
- Inter-Modulation Distortion: 0.002% @ 0 dBu
- Input Impedance: 220k? - ¼" input
- Output Impedance: 600? - XLR output
- Features:
- Input Pad: -15dB
- Ground Lift: Disconnects pin-1 at XLR output
- XLR Configuration: AES standard (pin-2 hot)
- General:
- Power: 48V phantom - proprietary digital switching
- Construction: 14 gauge steel chassis and outer shell
- Finish: Durable powder coat
- Size (W x H x D): 2.75" x 4.25" x 1.75" (70 x 108 x 44mm)
- Weight: 1.2 lb (544 g)
- FCC Approval: Complies with section 15 of the FCC Rules
- Conditions: For use in dry locations only between 5°C and 40°C
Radial Pro48 Active Direct Box Includes
- Radial Pro48 Active Direct Box
- User Guide
- Manufacturer Warranty
1 Review Hide Reviews Show Reviews
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Radial makes great gear
Oct 19th 2014Every Radial product I've ever used shows a consistently strong build quality and flawless performance, and this direct box is no different. The Pro48 does it's job cleanly and well without imparting noise or color. I highly recommend for live or studio use.
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