Which types of speakers are ideal against a wall?


I currently have rear ported floor standing speakers (Dali Euphonia MS-4) against the wall due to no other room options.  Are these speakers feasible?   I also have 2 Rel 528s along side each speaker.  I am looking at replacing the speakers.  I also have 2” acoustic treatment w 2” brackets behind the speakers.  Any speaker suggestions in the the 5-7k range (used) welcomed.  

Equipment:
Modwright 150 SE 
Dali MS-4
Rel 528 Qty 2

Room 15 w open wall  and 17 L 
puffbojie

Showing 5 responses by puffbojie

Thanks guys for all the input.   I guess I will stick with the traditional audiophile speakers and place an absorber in the port.    I’m curious if the port foam inserts are the same effectiveness as a sock?  Can’t wait to try.  
Thanks Yetti & Elrod.  I will explore those options. It would be interesting to see how much scale & depth I might be missing out on. 
The subs need to go against the back wall too.  Any idea if they would be more effective lined inside the speakers or outside the speakers?
I have 2 inch acoustic broad band treatments behind speakers with 2 inch extender brackets pushing them out further from the wall.  Is this typically a best (placement / product) practice for treatments?  I also have one in the right corner with corner brackets. The left side does not have a corner or wall.   I also have one inch treatments on the back wall but wonder if diffusers would be better here?