That's good to hear. I'm trying to move away from tower speakers (I currently have Spendor D7s). If the SCM 19s don't work out in terms of bass quantity, I'll probably give the 40s a go. However, my MK sub can fill in those bass spaces in reality. One thing I've already noticed is that bass tonality and quality is very similar between the ATCs and the MK sub. The sub simply adds depth. Having said that, on the majority of stereo tracks I played today, I didn't really feel the need to add the sub into the mix.I upgraded to a pair of ATC SCM40A’s recently and they are superb with the AV860. Fantastic bass and control, almost make my Velodyne sub redundant
I'll keep playing stuff over the next week or so and then make a decision. I'll also do a Dirac calibration to see if that helps or hinders (I'm not a Dirac fan thus far, especially for stereo music).