Lost an instrument.. JL found it.

[KingRT]

Circle of Drums Sacd through my LS360's only, sounded great!
UNTIL:
Then I connected my 2 JL113 subs to take over at 60hz to 80 hz and I gained an entire instrument. Kick drum is my guess. (low drum sound)
Not sure exactly why or how, being the 360's go to 29hz. I am going to plug in another Ht control surround center, to make sure mine is operating properly.

Its a good Sacd to test equipment.

I was going though the "I do not need a sub for the LS 360's (listening to a lot of sacd's", but then you hit that low Hz music.
The JL's added back an instrument and broadened the entire sound stage.