Axiom Home Page Forums General Discussion Advice from Axiom Owners M3Ti Bass Hump

Try putting the M3s about 3 feet away from back and/or side wall -- start with them 3 feet away from BOTH walls as a test. That should give you a response dip around 90 Hz. You will also get a peak at 2x the "dip" frequency, ie if you dip at 90 you will get a peak at 180 Hz.

Since you are crossing over at 80 you might want to move the dip and peak a bit higher, ie speakers a bit closer to the wall. My first thought would be to dip at maybe 120 and peak at 240, or something, which would be a bit over 2 feet from the walls.

If you want the dip centered at a different frequency, just take 1100/4 feet (ie 275 or so) and divide it by the frequency you want. The result will be the right distance to give you a half wavelength round trip from the speaker to the wall and back, so you should get cancellation at that frequency.

Obviously there will be other side effects with every change you make, but this info might help you understand what happens when you move the speakers around. Let us know how it works.

Thanks to "JohnK" for telling me about this in the first place.