I just purchased 3 xf-48s at a great price and hoping to use one as a center channel so that I will have a perfectly matched front 3. I also heard the xf23 center is not quite as impressive sounding and since the center channel is most important I went with the 48. I know the tweeter is not in the middle but that's the only compromise. Only problem is that I would like to remove the base so that it doesn't stick out when placed horizontally but I am having great difficulty unscrewing the 2 hex screws on the bottom. Any advise? Thanks.