Tips and Hints
I painted some "dammar" (an oil-painting item) on the paper cone of a
Lowther the other day.
Dammar is a botanical sap.
I dissolved the dammar in turpentine and brushed it on.
The tone of this lowther PM4 turned into a very, very nice sound.
Mr. Ishizuka is a Japanese enthusiast of hand-crafted full-range speaker
driver units.
He published this unique tip in a Japanese magazine for
audiphiles named "Radio Gijyutsu".The literal translation is "Radio Technology". The magazine is actually for
do-it-yourself audiophiles.
The tip was refined by Mr. Takahasi through several tests by using his
hand-made cone speaker driver units.
Mr. Takahasi is moderator of the mailing list for Japanese hand-made audio.
Some Japanese audiophiles paint 'Kakisibu' over the entire cone.
Kakisibu is the fermented juice of persimmon fruit.
Dammar and turpentine are found in artist supply shops.