NovoForte E3
2 switch-selectable programs      

Ear simulator
Max. gain 77 dB
Max. power output 137 dB
2 cm³ coupler
Max. gain 70 dB
Max. power output 133 dB
Frequency range 80–5000 Hz      

NovoForte E4
2 switch-selectable programs      

Ear simulator
Max. gain 84 dB
Max. power output 144 dB
2 cm³ coupler
Max. gain 80 dB
Max. power output 140 dB
Frequency range 80–5000 Hz