I haven't heard the M50 but I know that an M22 with a sub is not the same as an M80 - not even close! Whether you have an M80, M100, LFR100 or Model T, a sub is a whole new experience.
I am not sure what your conclusion ware there? Are you saying that an M22 with a decent sub is far better than an M80?? I would tend to agree with you there.
The real question is:
What is better: M22 with a Sub or M80 with a Sub or M100 with a Sub?
Or to they work out to being about the same as the decent sub takes over all the 200hz and lower frequencies making the M80 and M100 lower frequencies rather redundant?
Or does the decent sub supplement the lower frequencies of these larger speakers and give you something more than a decent sub alone can give for the 200hz and below.
