Yes they come as a pair but not in the traditional monoblocks style of one amp per speaker.
Here they have put all the noisy power related stuff in one box, then the pure power is fed to the other box that contains all the delicate stuff. You have 4 sets of binding posts so you can run 4 sets of cables to your speakers if you wish.

I've never had the lid off but here's a couple of stock photos, they don't do them justice though as you don' get the scale of the amps. I would say those transformers are the size of a dinner plate...possibly larger....