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Radial J48 Phantom Powered Active Direct Box

Radial J48 Phantom Powered Active Direct Box

Regular price $365
Regular price Sale price $365
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Product Description

RADIAL J48 48V Phantom Powered Active Direct Injection (DI) Direct Box

The Radial J48 direct box is the world’s finest phantom-powered active DI. It has been optimized to handle extreme transients using only the 5 milliamps of available current from typical 48-Volt phantom power.

Eliminates Signal Distortion in Active Guitar and Bass!

The J48 features a unique digital switch-mode power supply that steps up the internal rail voltage to an amazing 9-Volts. Most battery-powered guitars and basses are active and will produce as much as 7-Volts when played at maximum volume. Since typical direct boxes are only able to handle about 3 volts, they choke. The trouble is caused when the input signal is greater than the internal rail voltage. This creates all types of distortion: bass sounds thin and lacks punch, guitars sound scratchy and tend to have sporadic peaks, and they lose their natural body resonance. Because the J48 has more ‘horse-power” (current to work with), it is able to handle these transients without choking. This extra headroom signifi cantly reduces harmonic, phase and inter-modulation distortion. And when you fix all of the problems, you get great sound!


  • Huge 9-Volt internal rail voltage for extra headroom
  • Handles loud transients without choking or clipping
  • No batteries required, works with phantom-power
  • 3 year transferable warranty
  • Superior dynamic headroom
  • High input impedance reduces loading
  • Merge switch sums stereo instruments to mono
  • Low-cut filter, -15 dB PAD, and polarity reverse
  • 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
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