Phonak Receiver compatiblity

Pretty sure I’ve got this right.
The Infinio and Infinio Sphere use Phonak 6.0 receivers.
The Marvel, Paradise and Lumity (as well as KS9, KS10 and Sennheiser Sonite R) can use Phonak 4.0 or 5.0 receivers with the newer 5.0 using the preferred Cerustop wax system whereas the 4.0 uses the Cerushield system.
Edit: The 6.0 receivers have 4 pins. The 4.0 and 5.0 receivers have 3 pins. Edit: 6.0 receivers have a flat contact plate with 4 strips on each side of the plate.

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The Paradise and Lumity use 3 pin receivers and I use the Cerushield wax guards

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This would be a good question for a Costco fitter.
It would further answer questions. A straight forward physical answer.

The Phonak 6.0 receiver, part of the Sound Delivery System (SDS) 6.0, features a flat contact plate with 8 contact strips instead of traditional pins. This design is a departure from earlier Phonak receivers, such as SDS 4.0 and 5.0, which utilize 3-pin connectors

From AI, but matches my experience. I physically can not verify how many pins are in the 6.0 receiver since, as AI says it looks like a small shield.

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New receivers are available that fit Paradise and Lumity that use Cerustop.

I’ll buy that. Looking at a picture of it from the side I saw 4 strips. Having another 4 on the other side makes sense.

As mentioned in a couple of places, the 6.0 has a contact plate with 4 contact strips on each side.

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I confirm 8 contact points.

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