Sharing a subwoofer with 2CH and HTs rigs!

I use my JL E112s for both home theater and music. The inputs are summed. So you can send the preamp to one input and the reciver lower frequency output to the others. This still lets you high pass the mains and play the receiver’s out at the same time. I have been doing this for years without issue. 

Flynnrd,

“In the velodyne manual it expressly IN ALL CAPITAL LETTERS AND BOLD says do NOT use both low and high level inputs concurrently... 😕”

interesting, the JL I use just has right and left RCA. I have never used the high level speaker hookups. Maybe call them and see what they say.
If you have two I send the preamp to right on one sub and left on the other sub. Then send the LEF signal from the receiver to the open input.
This allows the mains to use the active crossover and you can still adjust the sub level through the receiver/processor.

I can’t recommend JL audio though. They are always breaking. The electronics in them are total junk (they sound good when they work....)