Assertion: subwoofer's amplifier | /r/HasAspect | input
Facets:
Source sentences:
text: Not all amplifiers or receivers have the LFE subwoofer output or input, and this is when you will see a right and left stereo RCA connectors, or spring clips on the back of standard speakers.
text: To setup stereo subwoofers, you will however need a reciever or integrated amplifier that has main left and right outputs and inputs.