Audioengine latency is very low. I've been using them for subwoofers and difficult to wire adjacent rooms.

There is always some sort of latency. Sound travels at about one foot per millisecond in air. A speaker at the other end of the property will seem delayed with respect to the speaker that you are standing next to and a person near the other speaker will claim that your speaker is delayed when, in fact, the speakers are aligned in time.