@davelarz, before making a radical change to the arm, I'd suggest trying to play with your setup in the room and room treatment. Many in squarish rooms have reported improvements by going to placement of the speakers across a corner at 45 degrees. Bobby at Merlin and others have used this setup at shows with square rooms to great effect.
There are tons of threads to read about bass traps, etc. If your room is peaking at a certain low freq. you can often fix the problem with traps in the corners behind the speakers (or all 4 corners). DIY traps are high performing if you are so inclined. To test the theory you can even buy a few of the round roll bags of fibreglass at your local Lowes or Home Depot and put them in the corners. RealTraps and GIK are two worthy commercial products that are fairly priced. Mio Weave are bargains for treating echo and mid/high reflections if you decide to treat the room in total. Cheers,
Spencer
There are tons of threads to read about bass traps, etc. If your room is peaking at a certain low freq. you can often fix the problem with traps in the corners behind the speakers (or all 4 corners). DIY traps are high performing if you are so inclined. To test the theory you can even buy a few of the round roll bags of fibreglass at your local Lowes or Home Depot and put them in the corners. RealTraps and GIK are two worthy commercial products that are fairly priced. Mio Weave are bargains for treating echo and mid/high reflections if you decide to treat the room in total. Cheers,
Spencer