dbx DI4 Active 4-Channel Direct Box with Line Mixer

I purchased 5 of these and they work quite well - I like the design. They are quiet and have clean sound. A great value

I do midsize stages and events up to 1000 people at the time. In the small event the sound technicians NEVER have a good DI box. This covered my A55 so many times, I can’t even count.

While the DBX is very good at ridding noise and I hear new instruments (details), the Radial Pro Av2 is on another level taking me to the live music venue.I use Apple Music.I have. $17k 2.2 stereo system.

I'm using this passive DI for a reamp loop. DAW goes out via reamp box, through a pedal chain, through the DI back in. The impedance matching works well, keeps the noise low. There's a single attenuator for both channels, but since my last pedal is stereo, the channel pair is reasonably balanced. If you're running two different signals then it may pose an issue. Similarly there's a single ground lift button for both channels, and that is great to have if you've got power loop issues.It's a good size considering what it does, does not require power, seems to be built well, and I anticipate it'll last a long time in a studio setting, but is ready for gigging too.

After chasing down some pervasive and annoying USB noise to a ground loop issue, this DI box did the trick in ridding my system of dreaded hum. I connect the unbalanced output of my audio interface to the balanced inputs on my JBL LSR system, hit the ground lift switch and the hum is instantly eliminated. I'm not entirely sure why these are so expensive, (I paid $50) but the build quality is very sturdy and after being driven mad by USB noise for the past months I'm just glad I was able to fix it. There is a bit of volume drop on the speakers, but this is easily overcome. Otherwise, the unit does everything I could ever dream of; clean quiet connections.

I don't want to knock this four-channel DI box - but I would not probably recommend it. The first one I bought, one channel went out and it was fairly new. The company is great and was easy to deal with and they immediately repaired the product - so they get a five-star for that. Then I ordered this one, this latest one, and it did not work when I got it out of the box. I tried everything to make it work---so others may have great luck with them, I didn't. (I returned this one).

I am only using this piece of gear as a DI unbalanced to balanced converter. It works so well. Any one of my instruments (all of which have unbalanced outputs) can all be heard crystal clear and ready for recording. I purchased this used and in great condition and I won on this. Great value here. Now in the future, when I get a mixing board, I am still set with this. Thanks!

Perfect for small gigs when I’m not certain there will be DI’s provided. I take the mixer output to a K10 & if available, a feed from the house to the other K10 input. When the band hits louder than at soundcheck I just dial up my keys to the K10 & my send to the house remains unchanged. I pack it with my interface & B3 module in a small pelican case.