My shells have Acoustic Codes Right 368 827M Left 369 459M.
From a paper that was returned with the right shell when it came back from repair - Vent Small 1.5mm. I believe the left to be the same size. Both shells are fitted with Paradise 1M 3 pin receivers. They were pre AOV.
The cShell 6.0 Order Form wants audiogram, receiver, wax filter, accessories, and colour. There is no clue as to what the code numbers signify.
My slimtips have accoustic codes, which are accepted by Target. Phonak UK, apparently keep a 3D record for 12 months. I got a 2nd pair made. They fit just fine. Strangely though, the acoustic codes are different.
Peter
I got cshells with the fit based solely on serial numbers of the cshells I purchased 18 months ago. I don’t know if the new molds were based on the audiogram sent 18 months ago or whether they were based on the new audiogram. There was hardly any difference. They fit very comfortably . Unfortunately there was a mixup somewhere along the line because the P and M receivers were each in the wrong ear. Currently back to Phonak for a remake.
I got a second pair made for my KS10s (hoping they could be used for the Spheres 
) and they had the same code. They made a mistake first time with a different vent size and as a result had a different code. Strange that yours would be different.
try HearingNow, they accept to receive impressions if you can make them locally and then order Sphere with cShell for you.
Thanks for the review.
Detailed information on what that code signifies and how it is calculated can be found here: When it comes to acoustic vents, size does matter! | Audiology Blog
I’ve been wearing the Sphere 90s for a little over two weeks and going back and forth with Widex Moment 440.
I generally agree with this review. The noise elimination capability of the Phonak is remarkable. Unfortunately, IMO, what they do poorly is what the Widex do well, realistically reproduce the human voice, especially in pure sound mode. This is a bit of an exaggeration, but when the Phonak’s are in Sphere mode, the speaker sounds a bit like he/she has marbles in their mouth. Neither I or my audiologist have been able to dial this out using the Phonak Target program. She advises I am not the first to report this sensation.
Equally unfortunate, also IMO, the Widex are close to useless in eliminating noise. However, the audio quality of voices is so good I’m considering waiting for their next release, as this tech dates back to 2022, while the Sphere’s were just released in August.
The are both superior to my Unitron Moxi Vivante 9’s I splurged for less than a year ago.
Anyone else who has compared both of these, please reply
same here. In the automatic mode, i rarely had the spheric mode turn on according to the stats available to the audiologist. It was actually the normal noise reduction that I’ve found a bit hard to deal with. Like washing hands or some light background noise made me feel like somebody just put a bell jar over my head. I had my Audiologist turn that threshold up a bit. Still getting used to it. If he myphonak app didn’t suck my phone battery empty when left on, i probably do away with all the auto noise cancelling and just switch programs as needed.
I’ve done this, and am very happy with the results, with Calm situation as startup, speech in noise, and music in that order. I use maunual switching:
I now hear well in most situations, but if it gets very noisy in the pub, I switch to Speech in noise and “face” the person speaking. This does a great job of quietening the surroundings, without losing anything from the speakers voice.
The Music programme works much better for music, than it did from first fit, but can add a lot of noise. This noise may actually be real, especially when walking outside. Phonak seem to think 125-500 KHz isn’t important?? For example, I hear traffic much better in this mode.
All a work in progress, using programme options in Target.
Peter