Radial Engineering J+4

DI box

  • Stereo Line Driver
  • Controllable input gain
  • Switchable low cut
  • Switchable ground lift
  • Stable metal housing
  • Inputs: 3.5 mm stereo input, 2x 6.3 mm jack inputs, 2x RCA inputs
  • Outputs: 2x XLR out
  • Extremely low noise
  • Incl. power supply

Further Information

Multi-Channel Unit Yes
Active / Passive Passive
19" No
Pad switchable No
Gnd/Lift switchable Yes
Powered by battery No
Speaker Simulation No
10 Customer Ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.9 / 5.0
  • features
  • sound
  • quality
6 written ratings Read all reviews
Total
features
sound
quality

Problem solver

Milosz, 31.08.2015
I bought it to accommodate my cheaper sounding electronic instruments and I have to admit, the noise is now no longer an issue vs. the output signal is hot as desired for one of my A/Ds. I still prefer not to use it in some situations, like i.e. when I record a soloed sample from an electronic instrument. But when I use my groove sequencer and have to digitize the whole mix of different sequence parts simultaneously, then this little bro helps me to obtain noiseless conversion at the highest signal level as possible. The sound is clean and linear, but somehow it sounds like it was passed through some kind of a brainwave synchronizer - kinda modulated. It's still a very decent sounding box, but maybe not good on every job. I like to record at the highest levels with just a little headroom left. My A/D inputs before J+4 were -15dBFS max on full mix, now I can easily get to -6dBFS or even track very quiet instruments at -12dBFS. If you don't need to preamplify your signals then better get a passive Radial Engineering box. For tracking, I prefer my other JPC box, whenever I have an access to a Phantom power supply on my last input. I also have a ProISO on monitors.
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Total
features
sound
quality

Robust and reliable

Miguel Ángel O., 12.11.2012
More and more I use on stage electric accessories to my percussion kits (Wavedrum, midi drums, etc) and in recent times using a laptop or an iPad as a source of sound makes things much easier. The logical problem is that these a priori elements do not have connections of the professional sound and if you add the risk of finding yourself in the concert with things different from those requested in the technical rider (the difference of some DI to others reaches be abysmal) the answer is clear: bring your own components, as far as possible, of course. After many laps I chose the J + 4 for several reasons: 1) Reliability of the brand (an increasing number of technicians in international tours request them in their riders) 2) Practically the same connections as the JPC, which was my first option, and 3) Gain control. This last characteristic was the most decisive because some elements (portable, for example) usually have little signal and a technician always appreciates a good signal, that does not force his gain in the table of the PA. I've had many concerts in different countries using it and the appreciation of the different sound engineers is a constant. Thanks Radial!
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