I think these speakers are actually more efficient than the rather pessimistic claim in their specifications; the ones they replaced were Pyle car audio 6x9's in boxes, that were rated at 96 dB, and these play louder and of course much clearer

"vented" or "ported" enclosure speakers

The other thing is that they include decent wall brackets which leads me to believe Behringer set out to build a good little multi-purpose speaker

Great speakers for the money.

Great Studio speakers