Radial J48 Active Direct Box
The J48 is a high performance 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.
Higher Rail Voltage, Higher Headroom
Most battery-powered guitars and basses will produce as much as 7 Volts when played at maximum volume, which can easily overload typical active direct boxes which have are only able to handle about 3 Volts. The J48 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.
Specifications
- Audio circuit type: Proprietary analog circuit with low-noise op-amp
- Frequency response: 20Hz ~ 20kHz
- Dynamic range: 109dB
- Total harmonic distortion: 0.002% @ -5dBu
- Intermodulation Distortion: 0.003% @ -3dBu
- Phase Deviation: +10º at 20Hz | 0º at 1kHz | -1º at 20kHz
- Input Impedance: 220kΩ - ¼" input
- Output Impedance: 200Ω - XLR output
- Equivalent Input Noise: -103dBu
- Noise: -99dB below 0dBu
- Maximum Input: +10dBu
Features
- Input pad, Mono Sum, 180° polarity reverse, Ground lift, HPF
- Input Connectors: 1/4"
- Output Connectors: Balanced XLR, 1/4" Thru
General
- Construction: 14 gauge steel chassis and outer shell
- Size (L x W x D): 3.3" x 5.0" x 2" (84 x 127 x 48mm)
- Weight: 1.55 lb (720 g)
- Power: 48V phantom - proprietary digital switching
Major Credit Cards, Wire Transfer, Paypal or Bank Certified Check (all checks will be verified). Illinois residents will be charged Illinois sales tax.
We ship to both domestic and international customers. We reserve the right to cancel and refund international orders that might be impacted by CITES export regulations. Please see our website for all current terms and conditiins.
All Guitars have a 48 hour authentication period. Buyer is responsible for shipping back returned items with no exceptions. All returned items must arrive in the same condition they were sent. Buyer must contact us within 24 hours of receiving a damaged item. Please see our website for current return policy details.