Question on Yamaha seperates. Also the A-S 2000

 I would like some thoughts on older Yamaha units.  I have a CX 800 and have had one in the past. I find it borders on being a bit bright and clinical. Not always but very much on the edge. I am not the only one that has mentioned this. The INVERT function helps warm it slightly and give more natural timber. I assume the CX 830 is much the same but have never seen the inside of one so no idea if real changes were made. That leads me to ask about the CX2. I was getting out of the bizz at that time but I had understood that it was a different animal. Has anyone owned or heard these units together that can give a opinion of the sonic differences? I am trying to decide if I should be going for a CX 2. I am sure they do sound different. I know the C6 I had actually was smoother and more rich then the CX 800 but no remote which I would like.

Also, where does the M4 power fit in in comparison to say the MX 800U, 830U or MX 2..  I know there are a lot of fans of the M4.

Was thinking about a used A-S 2000 integrated but have heard that it is pretty laidback?


Thanks