Made by ProSound in Germany, flight case construction, metal corners, 2 parallel quarter inch jacks on each cab. Matched. One cab has 4 British Celestion 10's, the other has an EV 18. They are not ported. Obviously, they sound good together but can be used individually depending on gig/taste, etc. The good news? Cheap. Get 'em for $250 a piece or buy 'em both for $400. Got WAY too many cabs in my garage so you win. Jump on this one and be happy! MUST PICK UP IN SAN DIEGO COUNTY. I WILL NOT SHIP.