An Odd Question

oldjazzer...The D-18 must be unreal...pre-war D-18's are the finest acoustic guitars I've played.  Wad the effect of the 8 guitars obvious, buzzing or sympathetic resonance, or was it more subtle? My culprits, if they are messing with me at all,  are a 97 D -42, a 69 O 16NY, and a Collings OM2H.

@mysterioso1-     "Maybe I just accept the idea that the stereo gets good vibes from the guitars and vice versa!"        That’s my friend’s point of view.    I'm still going to mention those Fretwraps.      Great idea, that one!

All this fretting about air on a g-string. 

Well listen with them in the room and then out and then you will know if a difference or not. 

High volume may cause an audible effect but I have one on a stand in my listening room and have never heard any effect.I would consider hard surfaces may have a greater  reflective effect.