Radial JPC Computer Direct Box
by Radial

List Price:
FPL Price:
$20.01 (9.10%)

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Radial JPC Active Laptop Stereo DI
The Radial JPC is a stereo direct box that has been specifically designed for use with computer sound cards and other consumer electronic products to allow these to be connected to a professional sound system. It is unique in that it combines the advantages of transformer-isolated inputs with an active drive circuit, giving you the ‘best of both worlds' in a compact and extremely flexible package.

Transformer coupled inputs have the unique advantage of isolating the ‘source' from the ‘destination'. This proven approach eliminates 60-cycle hum and buzz caused by so-called ground loops when two pieces of electrically powered devices are connected together. Because the active circuit does all of the impedance conversion and balancing, a dedicated 1:1 transformer can be used. This results in a hybrid design that is at once great sounding, compact and more affordable.

As with all great designs, simplicity is a fundamental trait and the Radial JPC certainly fits the bill. A choice of stereo ¼", 1/8" and RCA input AND thru-put connectors make interfacing a snap with all types of equipment. A single switch inserts a –10dB pad, two power LEDs confirm 48V phantom is turned on, and a pair of XLR output connectors round out the feature set.

Of course like all Radial products, the JPC is built to handle any environment. The book-cover wrap-around sleeve design protects switches and connectors from damage while the 14 gauge steel I-beam construction eliminates stress that could torque the PC board and cause solder joint failure. A full-bottom no-slip pad provides electrical insulation and mechanical isolation with plenty of ‘stay-put' for use on hectic stages. And with its baked enamel finish, the Radial JPC will continue looking great for years!

Radial JPC Active Laptop Stereo DI
  • Stereo DI for computer sound cards & A/V
  • Transformer isolation eliminates ground loops
  • Converts -10db to balanced XLR mic level
  • Active drive circuit for long cable runs
  • Compact design - may be J-Rak mounted
  • 48V phantom power eliminates batteries
  • Ultra rugged 14-gauge steel construction

Radial JPC Active Laptop Stereo DI
  • Frequency range: 40Hz to 20kHz , (+/- 3dB)
  • Circuit type: Active with isolated inputs
  • Powering: 48-Volt phantom powered, 5mA draw
  • Input connections: 1/4” TRS, 1/8” TRS, twin RCA, with switched -10dB pad
  • Output connections: XLR balanced, AES standard pin configuration
  • Dynamic range: 80dB
  • Distortion: 0.5% at 1kHz with -10dB input
  • Intermodulation distortion: Less than 1%
  • Phase distortion: Less than 5º at 100Hz, 0.1º at 1kHz
  • Linear response: +/- 1dB from 50Hz to 15kHz; +/- 3dB from 20Hz to 20kHz
  • Construction: 14-gauge steel chassis & shell, baked enamel finish
  • Size: 3-5/16" x 5” x 1-7/8" (84mm x 127mm x 48mm)
  • Weight: 2.6lb (1.8kg)
  • Warranty: 3 years, limited (see owner’s manual for details)

Radial JPC Active Laptop Stereo DI
(1) JPC Active Laptop Stereo Direct Box