Since you are using the BeoLabs, you will most likely get the same sound result from either configuration.
Reason being, you are using the same DAC in your mobile device and the same amplifier (BeoLab). Placing the 9500 in the signal path would not drastically change the sound quality. UNLESS, you have your bass, treble and loudness settings adjusted differently in the BC9500 and the BeoSound 2/6. If they are both on "flat" settings, the sound should remain unaltered.
I am assuming that when you say revealing, you mean the system reproduces the terrible compression characteristics. Only way to improve this is to get decent recordings, it will drastically improve your sound quality. Garbage in only gets you garbage out!
I would keep the 9500 in play, it will add a lot of convenience!