I discovered by inquiring whether the used/floor stock/returned Yamaha DXR10 for sale at the auction listed below still had the full factory warranty and other original materials as the listing suggested. The response was they had sold out of those units but would still honor the auction with brand new units, obviously including the full factory warranty. I bought one of the 2 still for sale, so there is one left. It's easy to miss the actual price since the auction lists for $499 for a used item. But reading the details carefully shows at purchase you get a $50 discount. Perhaps this will help a fellow Kemper owner get a DXR10. eBay item #: 371420740406
BTW, I'm a first time poster. Playing for more than 50 years through lots of amazing amps but the KPA is the greatest amp (& pedal-board/rack) ever. Thanks to all on this forum who make it such a helpful and friendly resource!