Assertion: subwoofer's speaker | /r/HasProperty | connected in order
Facets:
value: to be connected to an amplifier
type: PURPOSE
Source sentences:
text: Second, in order for the speaker to take the electrical sound impulses and convert those impulses into an actual sound that you can hear, the speaker needs to be physically connected to an amplifier, which can be powered either by a battery (most applicable for portable devices) or AC power.