The LFE input bypasses the sub's internal xover. You should use the LFE input when using an external xover like your receiver's sub out.
What is LFE on sub connections
A no-brainer to most on this forum, but I'd like to know what this connection does in any system, music or HT? My HT connection was set up from the receiver's sub out to the L/R line levelon the sub. That is what I was advised to do. But what is the LFE, and have I made the best connection for my HT system?
For music, what connection is best?
For music, what connection is best?