It is a very resolving speaker that will reveal a lot about what’s upstream of it.
It needs a sizeable chunk of power, as you may have noted. Think of it as some....hybrid between a high end studio monitor and a ’audiophile’ speaker. I have it about 5 ft from the wall and I sit midfield about 7ish feet from it.
Your mcintosh is probably not doing it a lot of favors (with the 2d flattening the mac tends to do). If you can snag a higher end luxman, rotel michi, some of the big older Levinson, etc, it would be a better fit for just listening. I also use it as a monitor when I am trying to fix an endless amount of crappy recordings I have. It is a fairly popular speaker with musician dudes... (not the starving kind, the ones who have slightly bigger pockets). I can think of a few reasons why, but, this is probably not the forum to argue about it.
Get a high quality subwoofer to go with it and it should work well for a wider variety of musical genres.