I recently bought a new Luxman L-505uX Mark 2 and it’s driving my KEF Reference 1 speakers so sweetly! I could only be happier if I had a LOT more money to go up the line. Someday, I probably will.
I am aware that the L-507uX Mark 2 will soon be replaced by the L-507z. Other models are also slated to be upgraded, but it will take over a year or more to happen. Of course prices will also rise with the change.