Note the first one that can invent a ''quiet ultrasonic" will
be a millionaire. I want to buy the first one! I will pay DOUBLE
the going rate to get one !!
It is unfortunate that this piece of equipment’s name does not quite
describe its’ function. I take Ultrasonic to mean “beyond the range
of audible sound.” Manufacturers of these handy devices would be
well served by sound-insulating them somehow but, until they do,
maybe we can do something about it ourselves in the meantime.
I’ve never tried this, but I can’t think of a reason why it wouldn’t
work. Get a box that is somewhat larger than your ultrasonic, so the
unit can fit inside with enough room to work. Then, get some
acoustic paneling. Ceiling tiles will work, as will the "egg carton"
type of foam rubber (I’ve recorded in music studios that used this
for soundproofing). Line the box with the material of your choice
and place your ultrasonic inside.
If you try this approach, please be careful. Jewelry cleaners may
emit fumes that might accumulate inside the box. Then again, they
accumulate under the ultrasonic’s lid as well. I use Simple Green
All-Purpose Cleaner in my ultrasonic. It is a great
cleaner/degreaser that is non-toxic and biodegradable. Still, it is
a mild eye irritant if contact is made, and the label cautions you
to use in a ventilated area. So does my leftover bottle of jewelry
James in SoFl