... and here's the same on the M80. Couldn't find M60 measurements.

Link to M80 graphs

If you want to see the corresponding reviews just do a search on this page :

List of audio reviews

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8