Assertion: speaker's driver | /r/CapableOf | use a multicell horn
Facets:
value: for its high frequency component
type: CAUSE
value: to 1998
type: TEMPORAL
value: from 1943
type: TEMPORAL
Source sentences:
text: The revolutionary coaxial driver, the Altec Lansing Duplex 601 and 604, used a multicell horn for its high frequency component from 1943 to 1998.