I am a Krell owner, not a basher. I have had many pieces of Krell equipment including the two I own right now, but given the choice between those two amps I would not hesitate to get the Pass Labs.
I have never had a problem with Krell customer support or service. To the contrary I have found their support to be exemplary.
The point is, the Pass Labs X-350 is a better amp than the KSA series amps. I have thought about upgrading from my FPB 200 to the X-250 or X-350. Pass labs is making one of the best solid state amps available right now. I cannot imagine how you could be disappointed by it!
I have never had a problem with Krell customer support or service. To the contrary I have found their support to be exemplary.
The point is, the Pass Labs X-350 is a better amp than the KSA series amps. I have thought about upgrading from my FPB 200 to the X-250 or X-350. Pass labs is making one of the best solid state amps available right now. I cannot imagine how you could be disappointed by it!