I am not familiar with Sonus Faber speakers BUT am very familiar with JM Lab and currently own a pair of 946 Electras and have heard pretty much the whole JM Lab line. I find the 946 Electras to be a well balanced, full sounding speaker without being boomy and have great image depth as well as great detail. IMO the Focal drivers deliver speed and accuracy that rival the best electrostat or ribbon drivers. Also fit and finish and cabinet construction are top notch. The new Be tweeters are simply amazing and are considered by some to be the best tweeter in the world. Of the speakers that Whatever123 mentioned, my choice would be the 937Be but don't overlook the standard Electra series 926,36 46 as these speakers are a now a real bargain on the used market since the Be models came out and offer very close performance for a lot less money.