4 ms·

This is curious reading since my Intel MacBook speakers crackled all the time as it grounded through me.

esperent 4y ago
Before anyone jumps in to say the issue is grounding and that it's your fault for having bad wiring: ground wires are not installed by default in all countries. If you live in one of these countries, in rented accomodation, there's not much you can do about this. And yet, most electronics are fine. It seems like MacBooks are some of the worst though, giving you shocks and crackling audio.
- eastbound 4y ago
  No grounding on Mac adapters by default, they’re only 2-pin. The 3-pin is available separately.
  - hoschicz 4y ago
    Oh so this is why I feel a slight tingling every time I touch my Mac while it's charging! I was looking for this info for quite some time, thanks
  - ValentineC 4y ago
    Looking at the Apple World Travel Adapter Kit, I'm guessing the only places where the Mac adapters do come grounded by default are countries that use the UK plug (BS 1363) [1], at least for plugs shipped after 2010 [2]: https://www.apple.com/us/shop/product/MD837AM/A/apple-world-travel-adapter-kit https://www.apple.com/us/shop/product/MD837AM/A/apple-world-... [1] https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets:_British_and_related_types#BS_1363_three-pin_(rectangular)_plugs_and_sockets https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets:_Br... [2] https://support.apple.com/three-prong-ac-wall-plug-adapter https://support.apple.com/three-prong-ac-wall-plug-adapter
cassianoleal 4y ago
That sounds like a QC issue. Have you sent it in for repairs?
- Lalabadie 4y ago
  Intel MBPs are notorious for this longstanding issue. You can get multiple hardware swaps from Apple and will probably find no improvement. My layman understanding is that it stems from an issue in voltage management, both on the power rail itself and on the software side. Certain types of CPU load trigger heavy crackling and popping in the speakers. Having the iOS simulator open makes it particularly egregious in my case. Add to this that the two prong power bricks mean the chassis grounds through your hands in (worse in low humidity), and in the right building it's a lot of worrying symptoms all at once.
  - kalleboo 4y ago
    The only time I've ever had the problem, across Intel and M1 Pro Macs, is with the iOS Simulator open, so I assumed it was an OS mixing bug related to some magic the simulator does

Before anyone jumps in to say the issue is grounding and that it's your fault for having bad wiring: ground wires are not installed by default in all countries. If you live in one of these countries, in rented accomodation, there's not much you can do about this. And yet, most electronics are fine. It seems like MacBooks are some of the worst though, giving you shocks and crackling audio.

eastbound 4y ago
No grounding on Mac adapters by default, they’re only 2-pin. The 3-pin is available separately.
- hoschicz 4y ago
  Oh so this is why I feel a slight tingling every time I touch my Mac while it's charging! I was looking for this info for quite some time, thanks
- ValentineC 4y ago
  Looking at the Apple World Travel Adapter Kit, I'm guessing the only places where the Mac adapters do come grounded by default are countries that use the UK plug (BS 1363) [1], at least for plugs shipped after 2010 [2]: https://www.apple.com/us/shop/product/MD837AM/A/apple-world-travel-adapter-kit https://www.apple.com/us/shop/product/MD837AM/A/apple-world-... [1] https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets:_British_and_related_types#BS_1363_three-pin_(rectangular)_plugs_and_sockets https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets:_Br... [2] https://support.apple.com/three-prong-ac-wall-plug-adapter https://support.apple.com/three-prong-ac-wall-plug-adapter

cassianoleal 4y ago

That sounds like a QC issue. Have you sent it in for repairs?

Lalabadie 4y ago
Intel MBPs are notorious for this longstanding issue. You can get multiple hardware swaps from Apple and will probably find no improvement. My layman understanding is that it stems from an issue in voltage management, both on the power rail itself and on the software side. Certain types of CPU load trigger heavy crackling and popping in the speakers. Having the iOS simulator open makes it particularly egregious in my case. Add to this that the two prong power bricks mean the chassis grounds through your hands in (worse in low humidity), and in the right building it's a lot of worrying symptoms all at once.
- kalleboo 4y ago
  The only time I've ever had the problem, across Intel and M1 Pro Macs, is with the iOS Simulator open, so I assumed it was an OS mixing bug related to some magic the simulator does