Sony WI-1000XM2 Teardown by 52Audio.com
52Audio.com has posted up their WI-1000XM2 teardown, check it out here. Thanks to the WI-1000XM2 certification earlier this year, most of the internals were already known, like the Mediatek MT2811 and the QN1. But it is always great to see the internal photos in higher resolution and quality. So time to dive in.
I will not be posting all the photos from the 52Audio.com article but only a selection, so do check out the link for the rest of the teardown. One can also check out my previous posts about the certification teardown and a comparison between the WI-1000X and WI-1000XM2 below.
I will start with the Bluetooth chip first, the MT2811from Mediatek. If we compare this chip in the WI-1000XM2 to the one from the WF-1000XM3, they are identical of course but their numbering is different.
The WI-1000XM2 has 1934-AMSH, where as the WF-1000XM3 has 1848-AMSH. While I am not 100% sure on this, these might be the production date codes, with the first number repressing the year and the second the week.
So the WI-1000XM2 BT chip was manufactured this year, week 34. This corresponds to August 19-25 2019. The WF-1000XM3 date would be 2018, week 48, or November 26 to December 2nd, 2018. Interesting enough the WI-1000XM2 from the leaked certification has the same production date as the WF-1000XM3, 1848. Of course I could be wrong, and the numbers might not even correspond to the production date and might be something else.
Next up is the WiFi antenna. There is not much information here but we can compare it to the prototype from the certification to see what has changed.
The internal code HDX-2928 has now changed to WI-1000XM2, and the X03 to A01. Perhaps the X is for pre-production/prototype, and the A for production but this is only a guess. Not sure what the second line would be, but the third line looks to be the production date. The difference between pre-production and production appears to be about 3 months. I am not sure if this particular WI-1000XM2 retail unit was purchased from the first production run but if it was, then it appears that Sony started full scale final production after the IFA 2019 reveal. I would imagine individual parts were manufactured earlier.
