Originally Posted by Schuyler Bain
Just blew another
Deftech ProMon1000 being used as a front. Deftech will send me another driver - easy enough, but it will happen again
on a front.
If you're repeatedly blowing front speakers, then that's a higher priority than adding treatments or adding height/wide speakers. After you replace your front speakers, it's up to you whether to use the old ones as heights or wides (either will help bridge the long gap between your front speakers and side speakers). Also consider replacing your centre speaker to match the new fronts.
Since your room doesn't have any thick wall hangings or curtains, there will be lots of reflections coming at you from every direction. You also have some asymmetries. For example, just forward of your listening position there is an open doorway on the right wall (which acts like a giant absorber), but there is no similar absorption on the opposite side. Also, your front speakers aren't centered relative room width, which is exacerbated by reflective side walls, making soundstage imbalance all the more noticeable.
With all that in mind, there are a couple of no-cost things I would do right away. First, get the L/C/R speakers symmetrically placed between your side walls. Next, I would move the seating forward of the open doorway. If I'm going to have an asymmetry in my room, I want it behind me (where our human hearing isn't as good). This will have an additional benefit of bringing you closer to the front speakers, giving the sound a better direct to reverberant ratio. You'd have to move the side speakers forward a bit, to get them back in line with your seating.
Finally, once you upgrade your front speakers, if you don't have enough left over to buy treatments and/or don't want to make them, consider getting some thick drapes for your front wall. Get fabric that is double or triple the width of the room, so that the drapes end up deeply pleated. If you pick a dark-ish colour, like the green in your wallpaper trim, then that will also make your display look brighter.