Radial Engineering


Radial Engineering J+4 Active -10dB to +4dB stereo line driver with transformer isolated inputs

The Radial J+4 is a stereo interface designed to accept unbalanced low output level devices such as instruments, computers or CD players and boost the signal to a balanced +4dB level for easy manipulation in professional environments such as broadcast, recording studios and live touring.

  • Stereo preamp boosts signals to +4dB balanced line level 
  • Increases gain for low output instruments & music players 
  • Transformer isolated to eliminate noise caused by ground loops 
  • Plenty of connector options - Plug and play easy to use