Radial JPC Computer Direct Box

Description

The JPC is a stereo direct box that is easy to use with practically any consumer electronic device. It utilises active buffers and transformer isolation to create a hybrid circuit that blocks ground loops and reduces system noise, along with AC blocking capacitors to prevent any audio system noise from bleeding back into the computer. The choice of ¼”, RCA and 3.5mm input connectors make it easy to interface with all types of unbalanced audio sources such as computers, smartphones, and tablets, and the outputs are XLR balanced mic level to feed snake systems and PAs. Powering the JPC is accomplished via 48V phantom from a mixing console, allowing the JPC to be used in concert environments without requiring an external power supply. =+= Technical Specification
Audio circuit type
Unity Gain buffers and inverters using low noise high end audio grade operational amplifiers
Number of channels
2
Frequency response
20Hz ~ 20kHz +/- 2dB
Dynamic range
111dB
Total harmonic distortion
0.01% @ -15dBu Output
Intermodulation Distortion
Less than 0.15% at any level below clipping
Phase Deviation
+29º at 20Hz | -5º at 1kHz | -80º at 20kHz
Input Impedance
10kΩ
Output Impedance
600Ω
Equivalent Input Noise
-94dBu
Noise
-97dB below 0dB Out
Maximum Input
+17dBu
Input pad, Ground lift, Phantom Power
Input Connectors
1/4″, RCA, 3.5mm TRS
Output Connectors
XLR
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
1.55lb (720 g)
Power
48V Phantom Power (each channel requirers 48V phantom)
Conditions
For use in dry locations only between 5°C and 40°C