So had to take my kW500 for a check as I had clumsily shorted an input terminal (with the volume still up!) Asked John if he could do the stage three upgrade which includes a new Alps pot and upgraded capacitors, well it just gets better and better!! The sound stage is even more defined, the separation is phenomenal. If you’ve got a kW500 then let John at it and be prepared for a very pleasing outcome! As ever Genius!!

Kevin Wood