I noticed that the “SPL” (Sound Pressure Level) varies in version 312 for Pure AX. I attach images.
I would like to know how this difference influences and what other differences there are in version 312.
Some “dB SPL” measurement differs between the two models. It’s very technical, and the difference won’t keep a qualified professional from fitting you with either model.
Yeah good point, I hadn’t taken any notice, it’s barely noticeable just a couple of dB tho, they use the same receiver so it’s obviously in the chip/amp that’s output a bit more in the rechargeable, which we know uses a higher voltage as well over the 312 disposal battery.
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