• I have a pair of Jamo U40T bookshelf speakers. I think I paid about a tenner for them. On the back there's a rotary switch like this. Well, it's exactly this:

    What does it mean, and why is there a click between 10W and 8 Ohms? I don't understand how those values are supposed to be options at all. If is said 2 Ohms, 4 Ohms, 6 Ohms, 8 Ohms maybe I'd get it.

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