Upgraded to Phonak Sphere and it sucks...help needed!

Hello,
I would like to share a similar disappointment when switching from lumity 90 to sphere 90. I adjust the devices myself, I have set the same audiogram starting from 50 dB to 90 dB at 6 kHz. I also have a 15-20 dB air-bone difference
I think the problem comes from APD 3.
In a calm situation, Sphere sounds somehow slurred, crowded, irritating. Voices are unclear and understanding is reduced.
I compare the gain curves and see that with the sphere, the low frequencies from 0.125 to 1 kHz are amplified and the curves are separated. The compression is higher.
I tried transferring the fitting from lumity in both ways described in the topic, but without success.
Could anyone help with advice for correction?

Does one have to use APD3 for Spheric mode to work?

Phonak Sphere does not have APD 2, which I tested with Lumity.

Try a new technician. I see no reason why it should not be one of the best around… other than it’s big & low battery life.
It worked well for me on 3 wk trial even though I bought a Jabra Pro 30 from Costco to save $$$.

Maybe try NAL-NL2 or DSL 5.0? Posting your audiogram in your profile settings could help provide better advices

In the absence of any relevant information in your post makes any advice pointless, other than to say go back to your audiologist, or change your audiologist.

Your aids, assuming you mean the Audeo Infinio Sphere I90 are in reality 2 aids. One is the incremental generational improvement, most recently from Lumity to Infinio, is just that, incremental., Then the additional new Sphere component which adds to the underlying to offer improved hearing in loud background noise. Treat each as a separate entity. As a general comment, the improvements from Marvel to Infinio are relatively modest, which for many users just keeps up with the decline in hearing (in its broadest sense, not just audiogram) that occurs with time. That moving from Marvel to Infinio “doesn’t help at all” is obtuse, and inexplicable in a forum such as this.

Thanks JordanK for sharing your experience.
My audiogram is close to yours, but I also have an air-bone difference of 20 db.
I use power receivers.
Indeed, the g50 line is close to the maximum capabilities of the device.
I think I will manually align the g 50 curve in sphere with that of lumity.
I will share my experience.

@JordanK

A simple check…with a dome on the receiver in each ear, stick an index finger in each ear. Louder? Sounds leaking out from your year with the dome and fit you have.

Learned that here.

What I learned? One of my ear canals is larger; I kept trying to use Large Closed Domes, and Large Power Domes. I didn’t want to bother with a Medium in one ear, and a Large in the other.

I became obsessive checking for leakage from my domes all day long. Note to self: pay attention to the wise people who recommended that I get moulded inserts! My apologies for being stubborn.

The owner of “Hearing Well Matters” in Burlington took a mould. 2 weeks later I had 2 Phonak (Canada) inserts on new Power Receivers on my Paradise P90R hearing aids. I have the Fitting Report from my last appointment. In Target my inserts are identified as Phonak SlimFit. I love them until I have to change my waxguards. (@WhiteHat – my little receiver tool order has been ordered but not shipped yet. 13 dollars on ebay has become almost $40 Canadian with an additional charge coming from Paypal. I’m looking forward to getting it. )

DaveL