I have a LCR Sierra combo & I've been wondering what they'd sound like with Q-plugs. The information on the Q-plugs says that they might be of benefit if they were placed near a wall. What's near? My LR speakers sit 21" from the back wall and 16" in from the sidewall. The center sits in an open back cabinet 16" from the back wall. I think they sound great and assume for my setup they aren't necessary. I was curious though if any other knew what "near" meant and what they were using (plug/no plug and distance) for their setups.