The Radial J48 Stereo Active Direct Box is a high performance 2-channel active direct box for live concert touring and professional recording studio applications, with the ability to handle extreme transients without distortion while delivering the natural sound of your instrument.
Most battery-powered instruments and stereo keyboards will produce as much as 7 Volts when played at maximum volume, which can easily overload typical active direct boxes that are only able to handle about 3 Volts. The J48 Stereo uses a unique switching power supply that raises the internal rail voltage so it can handle up to an incredible 9 Volts, resulting in improved signal handling and greater headroom. This additional headroom significantly reduces distortion of all types, allowing the natural tone and character of the instrument to shine through. The J48 maintains stereo separation between the left and right channels, allowing it to be used on two separate instruments or with stereo sources such as keyboards. The Radial J48 Stereo - Twice as good as the world's finest phantom-powered active DI!
Radial J48 Stereo Active Direct Box Features
- Exceptional headroom & dynamic range
- Retains the natural sound of the instrument
- Use with stereo sources or multiple instruments
- Powered by 48V phantom, no batteries required
Radial J48 Stereo Active Direct Box Applications
- Using the J48 Stereo with a keyboard - The Radial J48's active circuit and amazing signal handling makes it a great choice for both digital and old school analog keyboards. A built-in pad reduces the sensitivity if needed.
- Using the Radial J48 Stereo with two basses - The compact design makes it easy to connect two guitars using one direct box. The great sounding active circuit sounds as good as other DIs costing five times as much!
- J48 Stereo with two different instruments - Use the Radial J48 Stereo with two completely different instruments. The low crosstalk makes it a great choice when doubling between bass, acoustic guitar, fiddle, or mandolin.
Radial J48 Stereo Active Direct Box Specifications
- Technical Specs:
- Audio Circuit Type: Proprietary analog circuit with low-noise op-amp
- Frequency Response: 20Hz ~ 20kHz
- Dynamic Range: 109dB
- Noise Floor: -99dB below 0dBu
- Equivalent Input Noise: -103dBu
- Maximum Input: +10dBu
- Phase Deviation: +10º at 20Hz | 0º at 1kHz | -1º at 20kHz
- Total Harmonic Distortion: 0.002% @ -5dBu
- Inter-modulation Distortion: 0.003% @ -3dBu
- Input Impedance: 220k? - ¼" input
- Output Impedance: 600? - XLR output
- Features:
- Input Connectors: Dual 1/4" in and thru jacks
- Input Pad: -15dB
- Polarity: 180º signal polarity reverse switch
- High Pass Filter (HPF): -3dB @ 80Hz
- Ground Lift: Disconnects pin-1 at XLR output
- XLR Output: Follows 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: 3.3" x 5.0" x 2" (84 x 127 x 48mm)
- Weight: 1.55 lb (720 g)
Radial J48 Stereo Active Direct Box Includes
- Radial J48 Stereo Active Direct Box
- User Guide
- Manufacturer Warranty
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