Von Schweikert VR 3

I have a pair here that a friend has been kind enough to let me demo. I'm driving them with an Mac Mc275 IV. I can't seem to dial these in. I have tried a number of different positions yet, they never disappear into the soundstage. There is always a distinct left/right channel sound. Tonally, they are accurate and clear. Do I need more power? Better placement? Or, is this just the character of these speakers? Thanks!

After many, many placement adjustments, I have found the only way to get these speakers to image in my room is by toeing them directly into my listening position. They are approximately nine and 1/2 feet apart. Volume has to be moderately high. Now they are imaging beautifully. Rear firing tweeters are turned up just a smidge from being completely off. I've never had a speaker that had to be toed-in like this nor, required such volume to focus the vocals. Is this normal for this speaker? Or, am I still off base?

Bdgregory,
Do you have VR3's as well as the Staffs?

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!!