Cliff: "The impedance of our load actually resembles a real speaker. The same can't be said about some of the other so-called "reactive loads". Furthermore I've developed proprietary magnetics technology so the impedance changes with applied voltage, like a real speaker does. Most importantly though, it sounds really good. I've tested just about every reactive load out there and ours actually sounds like a real speaker. In fact I'd go so far to say it sounds better than when I use my iso cab as a load."