I'm guessing this could've been opened in the speaker forum. I'm taking delivery on an atma-sphere s30 (used) (Probably later today) I've been exercising the search button trying to get a handle on what i should be pairing it with. What I've gleaned is no lower than 8 ohm impedance (I'm not even nosing around for 16 ohm speakers). Also that the impedance doesn't drop at certain frequencies (too much) At 30wpc has to be relatively efficient. Oh and money is clearly an object. This won't be a knee jerk purchase. It may just be a passing curiosity. I have several pair of 8 ohm speakers to try for now and give me a feel for what I'm getting. I was also thinking speaker threads run off the rails quick so the focus of the question would be lost by page 2 (if it gets that far). Any other insights welcome. Thanks in advance.