Super-clean 48V power!
I've been having a little bit of a crackling noise issue on some of my preamps lately. At first, I was concerned it was the microphones. But it was only happening when I was supplying phantom power - both directly to condenser mics, or to a Cloudlifter CL-2 boosting the signal of an SM7B. It was especially noticeable on my AKG 451 small diaphragm condenser, and made tracking strummed acoustic guitars quite frustrating. All of my preamps are modded, all of my power is conditioned and carefully run, and it was driving me nuts.
Very simply put, I picked up this ART unit, and no more noise! If you have this kind of phantom power-related crackle, or if your preamps simply don't supply phantom power, this does the job perfectly.