LUXMAN L509X VS M700/C700U


HELLO,
I have a Luxman m700u AMP and  with its DAC Luxman DA-06. I have been using my Oppo HA-1 preamp with this equipment.
I have triangle signature delta speakers.

my next step is to either sell M700u and buy L509x or get C700u to complete the paring with M700.
Please comment with experience.

rizwanalimohd
Thank you Erik 
I also have an eastern electric dac but it had some crackling sound in tweeter so I stopped using them 
will taking out Oppo and introducing c700 soften things up or other option is to get tube preamp
The  C700 would be the natural addition. One other option would be the Luxman CL 38U-C tube preamp and match it w/the 700U. I have the Cl38U-SE w/a Bryston amp and it's an excellent combo.
What do you guys think of 509x 
it has the c900 pre amp 

also does 509x also has the first few watts as class A like M700u 

Cl38uc did it soften the sound ? Did u compare that with c700u 
Not so much soften but a smoother less digital sound. All the details and dynamics were still there. I also have a Luxman PD-171A TT hooked up to the preamp and the all tube phono is excellent. Has 4 steppe transformers. 2 for MC high and 2 for mc low. If you have a Luxman dealer nearby it would be worth checking out the tube solid state combo..