Having received these speakers this morning (fast delivery as always), I have immediately installed. This was done quickly. The implementation is easy (although the installation guide seal is in German and English). These speakers have worked right away my stereo set in our time in our kitchen (their cone aesthetic gloss white plastic suits also well in a kitchen), in an old building with thick bearing walls stone between the two. No sound transmission problem. It is clear, quality, without interference. To summarize, these speakers do what I expected and avoid me having to pull unsightly and cumbersome son.