This is the upscale version of the RM15. This is a full high isolation transformer with electrostatic shield. It is the Plus version which features extra isolation mechanical suspension for the transformer in the larger cabinet. I purchased this at new at an audio show.I shipped it home and due to job change and locale move I never used it. It is in almost perfect condition. At the audio show it got a small scratch on the front bottom right. Outside that it is in perfect condition. Weight is 72 lbs. This is a serious high current source especially valuable if you cannot install a dedicated line. It is in new condition, with Torus box, packaging and manual. You can go to the Torus Power dotcom site for detailed information about the model and technology. Be sure to look at the RM15 "Plus" version for additional info. Would like to sell so I am open to offers. Thanks for looking.