Assertion: speaker's driver | /r/Desires | stiff suspension
Facets:
value: relatively
type: DEGREE
value: to provide the restoring force
type: PURPOSE
value: in either case
type: OTHER
Source sentences:
text: In either case, the driver would need a relatively stiff suspension to provide the restoring force which might have been provided at low frequencies by a smaller sealed or ported enclosure, so few drivers are suitable for this kind of mounting.