Hmmm... I remember asking my electrician about that and why not every house come with one. He said it's not necessary any more; I better find another electrician grin
I thought that remark to be BS; in the country I'm coming from, all houses/buildings have something like that built-in.

In any case, thanks for bringing that up BlueJays1; I will definitely look into it.
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M80 v3, 2 x Emotiva UPA-1 Monoblocks, XPA-5, UMC-1 PrePro
Pro-Ject RPM Genie, Carver C2 Phono Preamp