Noun
A set of horizontal blades used to separate mineral particles.
A device used in milling to dry wheat, etc. by rapid spinning.
(UK, slang) A pickpocket.
(historical) Synonym of whizgig (“spinning toy”)
Source: en.wiktionary.orgSince the whizzer cone is smaller than the main diaphragm, output dispersion at high frequencies is improved relative to an equivalent single larger diaphragm. Source: Internet
The main cone in a whizzer design is manufactured so as to flex more in the outer diameter than in the center. Source: Internet
The result is that the main cone delivers low frequencies and the whizzer cone contributes most of the higher frequencies. Source: Internet