Cheers. I've heard about the stuff Asius are working on. Looks interesting.
I'm considering something with a MAM module for the times when my ETD flares up. I by no means suffer as bad as some, but do get allergies and blockage in the left ear which is annoying due to perceived channel imbalance as well as quick pressure induced fatigue.
I've read that MAM could allow you to dial in equalisation between the two ears but not sure how this would work as surely you'd be letting in differing levels of external noise to compensate?
When dialing in for individual ear impedance you sing or hum a note. I find the method of adjusting by music to be less useful and efficient than using the sing method.
To match the MAM's to your individual ear impedance: (note this is done one ear at a time)
1. Back the knobs all the way out away from your head (ADEL not active, module sealed and closed)
2. Gradually begin to turn the knob back into the body of the CIEM, going INTO the ADEL effect and sing/hum a note as you do it.
3. When you hear your voice change and become more normal sounding and you hear the BOOM of your voice in your head decrease you are getting close. Remember to do one ear at a time and listen very carefully for the decrease in the BOOM or occulsion effect as you sing/hum.
4. If you hear the occulsionn/Boom effect beginning to increase again AFTER it started decreasing, that means you've gone too far so back up a bit. Remember this is to be done slowly and gradually and listening carefully. As you get better, you'll be able to detect the generally correct pressure as well as the decreasing BOOM feeling. Be perceptive!
5. Remember how many turns from closed it took you to find the sweet spot FOR EACH EAR. Record it on a post it note and put it in your IEM case. For example. My right is about 3.5 1/4 turns from closed. I like to break it down into quarter turns because it makes it easier to be more precise.
Also, with regard to the knobs, yes they may protrude slightly differently snd that's fine.
Further info on MAM:
https://cdn.shopify.com/s/files/1/1348/5519/files/MAM_Instructions.pdf?14125951039904836164