The SM cases seem to be good for functionality but poor on sound and design. Given my setup is for an office space I'm looking at the latter without trying to break the bank.Yep, it's the XL. I'll find out how well it fits when the rest of the parts arrive. I looked at the SM case but decided to go with the FD because the SM is a bit pricey. A better solution no doubt but if the FD will work I'm way ahead since I bought it in 2011.