I also have the salamander cabinet...Sedona I think.  The back can be open or with fans, also the bottom shelf's have slots in them to aid in cooling.  I believe that you can also get slotted shelves to replace the solid mid and upper shelf.  It can be configured almost anyway you want and there are a batch of accessories you can also get, like lighting, fans, different feet, perforated doors and sides or no doors, additional shelves, plus it is a well built nice looking piece of furniture with  3 - 4 different styles.  True it doesn't have the resonance damping or the esoteric look and associated price tag, but it is a handsome piece of furniture and a good way to set off the minimalistic  design of the Bryston gear.  No, I don't own any Salamander stock!