Radial J+4 vic-firth which in this case is

which in this case is designated as a direct box out to capture the live performance

And unlike older racks that require soldering when modules are used in stereo

ideal balance of tone and playability

the JDI features a 14-gauge steel I-beam inner frame and a unique book-end outer shell

you can combine two 9V outputs from your power brick and the Tailbone will convert them to 15VDC and provide the correct voltage polarity

Radial J+4 vic-firth which in this case isStereo 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 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