subwoofer buzz - how to eliminate it

@grislybutter Sure, happy to try to help. The Nobsound are going to be more classy looking than the Auralex platform. They are brushed aluminum with some shine to them, and when the springs are compressed about halfway as they should be (no more than halfway), I think they look really nice. And with the inserted black foam earplug mod, you can expect them to perform in vibration isolation better than the more expensive foam-based platform.

This may be a long shot but check the mounting screws for the drives I did this for my two powered subs and was surprised how many were lose Hey I do the same for my tower speakers 

@jrwaudio exactly.... since I swapped the board in it, 2 out of 8 were loose

@Grislybutter

Doubt that was it, but always good to tighten lose screws especially on a sub woofer

@grislybutter Wrote:

At low frequencies, it vibrates, like it wants to fall apart. 

Just a guess, sounds like you are overdriving the sub.

Mike