AH! You’ve crossed to the “other” side then - from Android to Apple. I guess I’m glad I’m NOT a techie user, cuz Android apps seem to have their limitations. I’m surprised that you found the Marvel sound quality no better than the Opn!! Proves that hearing preference is truly unique to the individual.
Um_bongo had posted this about MPO a while back:
"ALL the MPO does is provide a ‘soft-stop’ limit to the peak output of the aid. It doesn’t make anything sound muffled as the same amount of gain is applied as normal, right up to the limit value.
The ‘Screech’ is the aid going into full saturation, during very high input signals the aid has unstable feedback. This ought to be properly controlled by the feedback manager not the MPO, as you want the feedback manager to adaptively damp the feedback rather than let the MPO control deal with it. The reason being that the MPO doesn’t modify the gain of the aid, only the limiting function - this could leave you with a signal that’s still feeding back at high level, but sits below where the MPO kicks in."
So you should not get muffled speech with a lower MPO, but perhaps the maximum gain would not cover a desire for more volume?
Someone please correct me if this is NOT the case.