I have to remember what my dealer said, but it was something like, more accurate and fast - but there were a few other comparisons used (I'm terrible with audiophile adjectives and descriptors.) He said that the E-280 will sound a little different than the E-380 even though the 280 came out only a year later, and that he expects the slight change will be consistent as new models are released. I will be able to hear the new E-700 soon which will be interesting - 35w of Class A into 8 ohms.In what way?