Performance Level
M7 M6 M5 M4 M3 M2 M1
Features                                                                        
Processing channels 15 12 10 6 6 4  4
Hearing programs 5 4 3 3 3 3  3
In-Situ Sound Optimisation  • 
Acoustic Situation Technology 11 (Linked) 7 (Linked) 4 3  
Impulse Noise Rejection II

 
Speech Enhancer II/Linked Linked  
Real Ear Effect  
High Frequency boost  
   
Accessories
Acoustic RC App  
RC-DEX