Iceberg Audio Sub Cut is a plugin doing a thing so simple that it seems dumb that there was nothing fulfilling such a need.
GUI
The GUI is simple. You have three buttons to choose which slope you want to set.
An S button that swaps between hi-pass and lowpass.
An Auto button that allows detecting the cutoff frequency automatically in real-time.
A big cutoff frequency knob to use in case Auto is disabled.
A menu where you can choose how quickly the Auto mode behaves.
How I use it
This plugin can serve two purposes:
- hi-passing bass sounds that might have problematic sub-bass content
- lowpassing subs so you can later recreate the harmonics you need.
Both purposes are going to help you deal with not excellently-produced low ends.
Conclusion
This plugin is something that many engineers will be thankful for. I don't see it being a primary necessity for producers unless for sampling purposes.
Here you can buy Iceberg Audio Sub Cut.