Alright, so I played my M100s full band along with the 800. Normally they are crossed at 80Hz. I tried the ADA-1000 and the 1500. I turned my Onk up to 0 with Renee Olstead's Hit the Road Jack on Tidal HD. This song is absolute torture in a couple of spots and shuts my Pioneer and 1000 down long before my ears give out when played with the power hungry M5s. With the M100, at 0 on my Onk, the 1000 doesn't shut down but it's definitely losing control of the low end. When I switch in the 1500, it's all wonderful and nicely controlled.

At +5 on the Onk, the 1500/M100 pair sounds controlled and VERY visceral. By +3, the 1000's right channel self-protects. With the M5 switched in, the 1000 shuts down its right channel at about -3 (even with an 80Hz cross-over). The M5 keeps going with the 1500 all the way to +5 but the M5 doesn't sound too pretty (even with an 80Hz cross-over). The low end gets pretty wobbly and the high end is shrill. I am sure the M5 can take more punishment from the 1500 but what's the point if it's misbehaving.

To give you an idea of how loud all this is, recall I am 13 ft away in a 4200 cu ft room. At +5, the 100/1500 pair is at 112.5dBC peak, fast-sampled. At 0, the same pair is 107dBC. I'll point out again that my meter may be missing the true peaks.

0 is tolerable but +5 is not only intolerable; it is INSANE!

P.S. An interesting point is that song peaks lower on Spotify Premium. It's like the true peaks are missing on Spotify.