New/ Used speakers, 500-800 bucks CAD

I like the Dynaudio or Silverline.

I've seen QUAD 22L2 sell within your range but typically over $900. I have a pair and I think they are a great value.

as much as i'm tempted to suggest vintage alternatives, most would be hard to find in great condition. i would tell you the regas are solid, and may be more at home on the short wall....keep the money.

Knownothing must know something because he has given you a great starting list. Heck, just a great listof speakers.
Have heard all the above except the Silverline.
The Dynaudio 52SE is also a very good speaker and is more musical than the other Dynaudios.

Tried the Arro, and although i like it for what it is, there is a certain tone to the lower registers which i do not like (probably since it's such a small driver trying to do the work). I'll definitely give the Rainmakers a listen, though...haven't heard a pair yet.

I was leaning toward MA GR10s, after hearing monitor audio's gs10 with my amp. Quite a nice combo.

As far as the quads go, i tested the 12l and, once again, did not like their tone with my amp. Perhaps they weren't broken in yet, but the Monitor Audio GS10s crushed them, in terms of openness, imo.

Regarding placing the Regas on the short wall - impossible due to room setup and limited space. I do not believe that they would open up any more than how they sound now, as i've tried a number of positions to get them to perform their best in my room. This is why i'm looking for different speakers.

re: The Silverlines - I don't know if there are any retailers in the Toronto area where I could have a listen, but i'll definitely look that up.

and, as crazy as it sounds, i've NEVER heard a Dyn. Maybe i should take a stroll down to Yorkville and have a listen down there.

Keep 'em coming, guys! Suggestions are always welcome, as there as SOOOO many speaker brands out there, i almost don't know where to start.