Radial Engineering J+4

The Radial J+4 is a stereo interface designed to accept consumer level -10dB unbalanced high-impedance signals and convert them to +4dB balanced low impedance signals for easy manipulation in professional level environments such as broadcast, recording studios and live touring. It delivers better than 95dB signal to noise while ensuring hum and buzz caused by ground loops along with spurious noise from clocking.
The J+4 is built tough to handle the extreme rigors of professional touring.