Amazingly good for pulpit-mic management
At my itinerant church, where the sound system packs into a closet every week, the ART Tube MP/C has substantially improved our quality of life. The super-transparent compressor is proving ideal for our live sound reinforcement needs. We can hear worship leaders and Scripture-readers above the noise of children, but the preacher doesn't hurt our ears when he raises his voice for emphasis.
The MP/C powers a Shure lectern mic (which we mount to a mic stand) and outputs to our Fender Passport Pro 150 PA system (using an XLR-to-TRS adaptor; plugging into the XLR input yielded a buzz). I use the compressor in Limit mode, I set the threshold just above the preacher's conversational voice level, and I don't have to ride the volume knob anymore. It's luxurious. When I took it home to track a choral rehearsal recording, I was yet more impressed with how unobtrusive the compressor is—the main impression was that loud passages just didn't hurt my ears coming out of the headphones anymore. Just for fun, I switched it to limit mode and recorded a few lines of a Jason Mraz song, exaggerating the whisper-then-shout technique. The Tube MP/C was unfazed. The absence of an expander/gate or de-esser became apparent with that kind of pushing, but it still sounded quite remarkably polished.
Also, it just feels classy. Compared with the ART Tube MP V3, the connections feel more secure, the XLR input locks, and the knobs feel sturdy. Praise the Lord.