I think the main reason may due to the fact that if you have paid that much money for the Krell Standard it shouldn't have to be fixed or modded to be
functioning at it's full potential. A price of four grand should go a long way towards eliminating sonic or engineering compromises in a product like this.
Also I don't belive the Krell brand name is generally perceived as being
sonically compromised,people buy it in part because it's supposed to sound good.
Scotty