This is where it gets a little ugly. Off-axis measurements with the speaker horizontally placed, as it would be when used as a center channel. If you remain witn 15-20° off-axis at the edges I think that there will be no trouble. For most folks sitting on a couch 2-3M back, this is reasonable. However, as you can see the off-axis measurements at 30° and above are rather dismal. On-Axis (yellow), 15° off-axis (red), 30° off-axis (green), 45° off-axis (pink), and 60° off-axis (blue).