The IMF loudspeakers can be classified in three different categories :
The Compact speakers
The Compact line of speakers are 2 or 3 ways, transmission line or not. Their size are small, and the Super Compact is one of the best loudspeakers designed by IMF.
The Studio models
The Studio models are much larger. Their are all transmission line speakers, 3 or 4 ways : more complex, but carefully designed.
The Reference serie
These are the beasts, the heavyweights. Huge speakers, with sensational bass. 3 or 4 ways, there are all transmission line except the rare HPCM (and R ?) models.