Radial Engineering JPC

The Radial JPC is an active stereo DI with transformer isolated inputs to eliminate noise that is common with computers and consumer audio devices.

The Radial JPC is an analogue stereo interface designed to help solve the buzz and hum problems commonly associated with connecting a computer to an audio system. This is accomplished by combining active buffers and transformer isolation to create an effective 'hybrid' circuit.

Intended for professional field use, the JPC comes fully loaded with choice of ¼", RCA and 3.5mm input connectors that make it easy to interface with all types of unbalanced audio sources such as computers, iPods, and CD players. It is equipped with isolation transformers to eliminate hum and buzz caused by ground loops and to further reduce system noise; while AC blocking capacitors in the active circuit prevent pollution from the audio system from bleeding back into the computer. Outputs are XLR balanced mic level for easy interface to snake systems and PAs. Powering the JPC is accomplished via 48V phantom from a mixing console. This enables the JPC to be used in concert environments without requiring an external power supply.

The JPC is a great sounding stereo direct box that is plug-and-play easy to use with practically any consumer electronic device. The noise eliminating advantages makes the JPC a must-have problem solver for any technician's audio kit.

The Radial JPC... an effective tool designed to make interfacing gear easy.

• Easy to use stereo interface for laptop computers

• Active signal path with transformer isolation

• Eliminates hum and buzz common to PCs

• Full connector options set for easy interface

• Audio circuit type : Unity Gain buffers and inverters using low noise high end audio grade operational amplifiers

• Frequency response : 20Hz ~ 20kHz +/- 2dB

• Signal to noise ratio :

• Dynamic range : 111dB

• Noise floor : -97dB below 0dB Out

• Equivalent input noise : -94dBu

• Maximum input : +17dBu

• Phase deviation : +29º at 20Hz | -5º at 1kHz | -80º at 20kHz

• Total harmonic distortion : 0.01% @ -15dBu Output

• Inter-modulation distortion : Less than 0.15% at any level below clipping

• Input impedance : 10k

• Output impedance : 600

Features

• Input pad : -15dB

• 48V power LED Two 48V phantom indicators, one for each channel

• Ground lift : Disconnects pin-1 at the XLR outputs

• XLR configuration : AES standard (pin-2 hot)

General

• Power : 48V Phantom Power (each channel requirers 48V phantom)

• 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 : 1.55lb (720 g)

• Conditions : For use in dry locations only between 5C and 40C