)Just need to add a couple comments:
1. I have a friend who owns a Luxman 509 integrated. It sounds superb. The descriptors I'm reading in this thread don't reflect my own experience. I think Luxman equipment sounds excellent.
2. Over the last several months I've become more convinced that we are never "hearing" a single piece of equipment. We're always hearing a combination of pieces of equipment, and that includes source(s), interconnects, speaker wires, speakers and room.
3. I make these comments simply to emphasize the criticality of auditioning equipment for yourself, ideally in a system you're thoroughly familiar with.
4. One last thought - I'm sure that any and all of the equipment that folks are recommending on this thread is sounds superb, in the right system, with the right links in the chain...