Alternatively, what other bookshelves/standmounters would you recommend as an upgrade from the m106? My room is small/medium and I used subs and DIRAC
The M106s, by all accounts and measurements, are very very good. Here's an incredibly exhaustive review you may not have seen:
https://hometheaterhifi.com/reviews...ookshelf-monitor-loudspeaker-review-part-one/
Given the M106 and M126Be share similar design philosophies, I suspect they will sound more similar than different, with at best incremental improvements. Whether these will be worth the considerably increased cost is the question, especially if you use subs and RoomEQ.
You are already at the point of diminishing returns with the very fine M106s, I suspect.
Personally, if you stick to bookshelf speakers, I would also look at quality alternatives that share the form factor but have slightly different design goals to see if you would prefer that. A three way concentric such as the KEF R3 immediately comes to mind. I had a pair and preferred their delivery to my older Revel M20s. I have a pair of the KEF Reference 201/2s now which I am trying to convince myself are even better
.
For (a lot) more the KEF Reference 1 or one of the Genelec powered 3 way concentrics would also be worth a listen.
I'm in Sydney too and considered importing or building a pair of the Philharmonic BMRs.
And, if you can find them, the Pioneer S2EX would definitely be worth a try. I almost bought a used pair from a hifi store in Perth.
They are basically the same as the TAD Compact Reference but with a Pioneer badge.