According to the owner,these speakers have been sitting untouched for about 4 years. They seem to have just needed some breaking in. I've been playing them as much as possible for about 10 days now. At Bdgregory's suggestion, I've returned them to the original starting placement, approx. 7ft apart, facing straight ahead, no toe-in. Vocals are now locked in focus. I guess they were just stiff! Thanks to all for the guidance!!