smart:EQ 2, proximity:EQ+ and entropy:EQ+ (all part of the Special EQ bundle) basically represent the individual processing layers of frei:raum as single plug-ins but they include a couple of upgrades, e.g. rescaling of the plugin, precision mode for the EQ, undo and preset management, one additional band, ...
Especially smart:EQ 2 offers a lot of additional new features:
- Instrument and vocal profiles
- M/S processing
- 18 recallable smart:states
- Pre and post analyzer
- Redesigned UI
We suggest you download the demos and test them with your own audio material. That way you can figure out which plug-ins suit your needs best.