See here. Find Infinio Sphere brochure for consumers and then for professionals.
There are basic questions:
-
Which receiver power you have? P or UP?
-
Which acoustic coupling? Domes? Earmold (diameter of vent)? With your loss, earmold with small vent (ideally 0.6mm pressure vent) is almost mandatory if you don’t have occlusion effect.
-
Did you have REM? If so, did you audi managed to reach the target gains?
-
Maybe Audeo Infinio Sphere is too low power and you need higher power HAs like Naida (there is no Naida Infinio on market, maybe soon)
-
Maybe Oticon (e.g. Intent with 105 receiver) could be better for achieving high frequency targets in REM. Oticon receivers reportedly has better high-frequency amplification.