Speaker Placement ....help

I just purchased a pair of JBL Olympus C50 speakers.
I would like to know if I should raise these off the floor or leave them as they are on the floor.
Toe in ??...and placement suggestions please.
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Cardas speaker placement guide. This might be of use.

Check out Vandersteen.com. Look at the owners manual for the 5A. It gives great setup instructions