Their model numbers make a lot of sense, first number is the type of monitor, 7xxx for subs, 8xxx for monitors, 1xxx for mains, 9xxx for GLM devices. Second one x0xx is either analog, or x3xx for digital with GLM. Then it's the size, starting with xx1x, up to xx8x. Then it's the type, 8xx0 for conventional 2 way and 8xx1 for coaxial for 8xxx monitors, for subs it's something different. The letter at the end is revision, A, B, C etc.
The cool thing is for example 8040A, 8340A and 8341B are exactly the same size, I think the back half of the chassis is the same, so it's easy to upgrade, accessories like stand mounts are the same, or in wall mounts.