I have four framed glass enclosed water colors in the room and have no problem. I have room treatments, panels, bass traps and tube traps in the room as well. My system is full range down to about 25hz with the speakers and two subs.
When the speakers were spiked to the carpet over concrete floor I used to have a strong resonance at around 125-250hz that would vibrate the walls if played loud and with music that had a lot of content at that frequency. Removing the spikes and replacing with Stillpoints eliminated that problem completely. The Stillpoints do not puncture the carpet or pad.
I would suggest decoupling the speakers from the floor. Townshend pods or podiums would be excellent if funds permit.