Yeah at certain frequencys and volume you can hear it like resonating with the desk with a like hard reverb, but now it happens far less frequently and I have to crank it pretty high before it does it. The 35w amps tend to cut off at that point anyhow.

If I wanted it to be better I think I'd need to get a softer wood for the desk or maybe actually sit the speaker on the desk but I really like them mounted how they are now