Zo
"COSMOS - HARMONIC EXCITER and SUB GENERATOR" taken from Noma website ....
"Harmonically excite an entire mix"
"COSMOS is designed to improve clarity and punch without increasing gain, which results in a more balanced sound. The plug-in uses harmonic enhancement instead of traditional EQ boosting to bring out desirable frequencies in your audio material. COSMOS works great to improve the sound quality of any audio source, including compressed mp3 files, podcasts and voice-over work."
You can't believe everything you read, Zo. I'm sure you've got SPAN and Christian Budde's VST Plugin Analyzer. Check it out for yourself. Turn the limiter off for your tests, though, as the limiter does distort pretty badly.
I discovered this the day I bought Cosmos but kept it to myself for fear of hurting NF's fundraising endeavor. The first thing I do with any exciter / distortion / saturator plugin is check for aliasing. To my surprise, there not only was no aliasing there were no added harmonics, either. That piqued my curiosity, and prompted me to find out exactly what the plugin actually does. Sure enough, it's primarily a bass and treble booster. "No added gain"? At full rotation of any of the bottom three knobs it'll add between 14 and 16dB!
There is some harmonic distortion, but it's at -90dB. That might as well be part of the noise floor, and is inaudible. Turn the limiter on and crank the gain, and you do get significant (and audible) distortion. This would be the basis for the "exciter" claim, although it has nothing to do with the Drive controls below. Those are just filters.