Are the JBL speakers you are mentioning being mounted on the house or in the landscaping? if landscape - how?
Here's some photos showing the speaker mounting. JBL speakers mounted up under eaves (including recessed sub) were painted to match the trim. Subwoofer down in landscape was placed on a poured concrete slab. The speakers out in the landscape were mounted on 2" steel post that was drilled and tapped for mounting and then set in concrete.