Titanium cShell vs. Power Domes – first impressions before complaining about large venting

If you’ve measured the UCL with audiogram direct, then that makes sense and don’t want you to cause yourself discomfort or have them unnecessarily loud or potentially damaging. I don’t trust those decibel numbers unless I’ve verified them with REM equipment. Most of the time I find the MPO number the software displays is extremely inaccurate and there is room to increase them in a large number of fittings over what the software selects. Resound recently added a button “use instrument MPO” probably for the same reasoning.

Again, for anyone else reading this, I’m not suggesting everyone max their MPO or anything. Not everyone has the same hearing loss as Bimodal_user

@mindsil said:

I don’t trust those decibel numbers unless I’ve verified them with REM equipment. Most of the time I find the MPO number the software displays is extremely inaccurate and there is room to increase them in a large number of fittings over what the software selects.

Yes, just see what Target offers me and what I had to set myself. I probably have a much larger than average ear canal; hence, the differences.

@mindsil said:

Again, for anyone else reading this, I’m not suggesting everyone max their MPO or anything. Not everyone has the same hearing loss as Bimodal_user

Indeed. Just because my issues have to resolved by out-of-the-box solution doesn’t mean that is for everyone. Many of us would be happiest with a rather routine approach and management. And there are also hearing loss differences even in cases with the same tonal audiogram.

Her dismissal of your many years of experience using small vents effectively, and especially her phrasing of such, should lead to her dismissal from your care. Seems like she views herself as God’s gift to the hard of hearing. Aaarrrggggh!

@Bimodal_user
I’d send those cShells with the wrong vents back, and instruct them to either make new ones to the specifications as ordered or refund my money. I think someone wasn’t paying attention and hoped not to be called out on it.

Was the vent on the other pair you were waiting on receiving yesterday also larger than requested?

I’ll write more later, but - yes. Admittedly, it’s not a few millimeters of AOV, but it’s still larger than what I requested in the order form— it’s 1 mm instead of 0.6 mm. I checked this by pushing a guitar string through it, the diameter of which is specified on the packaging.

And I noticeably feel better isolation, when I occlude with that string! The cShell with 1 mm vent is longer than the one with AOV, which which results in better amplification with the same settings,

Good grief! Do the people making the cShells think you’re pulling the specific vent size out of thin air? I’m angry about it, and they’re not even my cShells!
Sorry, but shoddy workmanship really annoys me.

@Zebras said:

When I had room before I lost my hearing, I raised the MPO in the lows and it made speech in noise so much easier to make out. I’m not a music person tho so don’t have experience of music.

That need occluded fitting like your 0.8mm vent in silicone earmold. I suppose that raising MPOs in the lows wouldn’t be that effective.