stringreen
Magnets on windows, bookcases, et al.....I suspect its not the magnetism of the magnet, but the mass that’s changing the resonant frequency. I have a very large listening room with high ceilings ( a bear for proper listening), but I have some stones, and other junk in corners, etc. which work for that very purpose.
>>>>Of course the theory that it’s the mass, not the magnetism, can be easily disproved by careful experimentation. It should be obvious in the case of a wood bookcase filled with books, for example. (Books are also wood products, by the way, and should also be treated with magnets.) The mass of a small thin ceramic magnet is what, a millionth of the total mass of the bookcase? Same holds true for a large wood table or sofa with a wood frame. If it doesn’t make sense it’s not (rpt not) true.
To be thorough, one could substitute an equal mass of some non-magnetic material for the magnet just to test the theory. This logic holds for large glass windows and sliding glass doors as well: the mass of the small thin ceramic magnet is insignificant compared to the mass of the glass. This is not (rpt not) to say that some low mass devices can affect the sound, things like Marigo constrained layer VTS dots. And my own Flying Saucers for Windows that weigh almost nothing! Furthermore, placing magnets, especially COLORED MAGNETS, on objects in OTHER ROOMS - even rooms not (rpt not) close to the listing room - improves the sound in the listening room. Since the rooms are some distance away the possibility that resonance is involved is slim to nil. So, to summarize for the case of using small light magnets on things like wood and glass, it’s not (rpt not) resonance control and it’s not (rpt not) affecting the audio signal. Then what in the wide world of sports is going on?!
geoff kait
machina dynamica