Comes with a 15" to 18" plywood adapter ring and a ton of screws. No speaker! You just need to help get this out of my basement. I'm sorta wimpy so I'd recommend bringing a strong friend just in case. Pickup only-I have no way to transport this cab. Located in Fairborn, Ohio. Here's a $40 clearanced 18" speaker you could pick up from MCM on the same trip if you call ahead. Those guys are about 20 miles south of here..