Assertion: speaker's power | /r/HasProperty | rated at 89 db
Facets:
value: for 1 w
type: OTHER
value: @ 1 m
type: LOCATION
Source sentences:
text: @ 1 m sensitivity puts out twice as much acoustic power as a 200 W driver ("B") rated at 89 dB for 1 W @ 1 m when both are driven with 100 W of input power.