Ok so today I'm leaning towards putting holes in the walls anyway. So... what sort of anchors should I use. I'm thinking the plastic ones that you drive screws into in a size where the plastic part is just slightly smaller than the holes in the brackets and then put a washer on the screw. The other option I think is to find studs and use 3 screws in the center of the bracket.
I just remembered these things came with a manual... I wonder what it says.
Sorta related. I have an Outlaw Audio LFM-1 Plus which is a down firing subwoofer. I have the carpet spikes installed but this place has some pretty deep carpet. I'm wondering if I should put something under it to raise it out of the carpet or possibly put the hard floor discs under the carpet spikes.
Find the studs. You can start with a plug in the wall. The plug is attached to a stud on one side or the other. Studs are generally 16" on center - at least around here. You can measure out with any standard tape measure and get pretty close. To be sure, you can take a drill with a small bit like 1/16 and locate for sure. Not hard, you just have to jump in and do it. When you are ready to leave for good, Spackle the hole and maybe repaint - dependant on your landlord. If he is going to repaint anyway, he will appreciate you patching the holes. Speaking from experience, dude.