To the questions above, I am using a Music Fidelity M3i int. amp and Neotech cables with the speakers. The music was streamed from Spotify via a Mass Fidelity Relay BT device. Yesterday., I listened to a lot of Angus Stone and Cowboy Junkies. lots of tracks with prominent bass lines. As I have ~25 hours on them now, the bass has tightened up and is much better defined. Everything has opened up, really. My experience is also that 100 hours of break in will reveal a very different speaker than one out of the box. Kind of Blue was in the rotation and Miles' horn had no stridency and the bass line was solid as a rock. Others will note that I have liked most all of the monitors I have heard in my system of the years, but the smooth extended sound of these speakers, even in their virgin state, is quite amazing, And it would be amazing if they cost the same as the LS50's, which I got bored with quickly, but they are less than a quarter of the price of the KEF's. I have been a big fan of Danny's speakers and cross-overs so his upgrade will likely be a improvement. I think ELAC is going to sell a huge number of these speakers... and then taunt us with even better speakers in the future. Andrew Jones is genius and one of the nicest guys in the business, for sure. For a lot of listeners, these will be all they need to fully enjoy their music.