I think the Harbeth radial driver is really well behaved, with excellent detail and tone. Comparing SCM19 vs SHL5, or SCM7v3 vs P3ESR, its interesting to hear the difference in terms of presentation. ATC is more dynamic, but less involving. However, the Radial do seem to homogenize sound. ATC mids are more live sounding and raw, harbeth more "beautiful". its a trade off. I dont see ATC as being better, having own both P3 and SCM7, and comparing at length SCM19 vs SHL5. I do think that the BBC cabs compromise the bass and make the bass sound coloured, and that their biggest flaw. This talk about soft dome vs metal tweeter is interesting. I always prefer soft dome vs metal tweeter. I find metal driver more extended and detailed, but fatiguing and irritating compared to a good soft dome.