Display MoreThis may be a stupid idea.
But why can't you send your old Non powered Kemper back and they send you back a new powerd one?
Obviously you pay for the amp.This way they do not have to open the device.
They could sell the old devices with a 100 euro discount maybe.
This way it would be cheaper for both parties.
Just a suggestion.
I think this it the proper solution. Kemper sold us a divice that included a power amp upgrade path. Kemper can not fulfill their end of the bargin. Therefore, Kemper should take the hit and NOT put the burden on it's customers to have to resell the unit on Ebay.