The best analogue CD sound

Could you say if the best stereo analogue output could be obtained from Onkyo DV-SP506, DX-C390, BD-SP807 or DX-7355? As I have Onkyo receiver with analogue inputs only, I am interested in the DVD or Blue ray device of the same brand that will give the best audio sound, or should I better get Panasonic DMP-BD80 for DVD Blue ray and noted CD player for audio?
If you heard models in comparisson, it will be most helpful.

Thanks!