I just had this hard slipcover built for my new Markbass NY804 cab. I've done similar ones for 4x10 and 2x12 cabs in the past. Not only does it protect the cabinet it also serves as a riser. It's also cheaper and lighter than a full tray case. The guy who made it for me has been building cases for around 40 years and has never done this for anyone else. I was kinda surprised to hear that as it works so well.