Assertion: powered subwoofer | /r/HasAspect | a line input
Facets:
Source sentences:
text: You can purchase an optional wireless transmitter/receiver kit that can connect to any powered subwoofer that has a line input and any home theater receiver, AV processor, or amplifier that has a subwoofer or LFE line output (see connection example for one kit below).
text: Many powered subwoofers have both line input and speaker connections.