LUXMAN L509X VS M700/C700U

Greetings, interesting reading above for sure. Here is my current mini-system: MacBook Pro to D-N150 cd/DAC to SQ-N10 tube to Heritage lll. Sounds great to my old ears and looks even better; looks like the components were made by the same company, that Apple made Luxman or Luxman made Apple—same size, same finish, same amazing workmanship. Have larger Luxman, McIntosh, etc pieces, but the above three win on charm alone.

Excellent mini system. Luxman makes all their gear in house in Japan.

OP - any updates on the 38/700-combo?

Well I enjoyed that but M700u was still very bright for my triangles so I now paired with mq88uc and now planning to by amp with 2 mq88uc cl 38uc preamp and analysis plus speaker cables silver apex 
sound sweet non fatiguing 
I am also planning to pair harbeths 30.2 with m700u let’s see 

I was too lazy to read this whole thread, so perhaps the above question has already been answered....However,  a conversation with my local dealer just today happened to answer the question...the 509 stays in class A up to it’s first 17 watts, and after that switches over to A/B. Cheers -Don