How to improve on the 2 ch in my 5.1 set up?


I need help to enhance my 2 channel audio performance. Currently my set up is as follows;

Front: Jm Lab 1028 Be
Center: CC1008be
Rear: Emotiva ERC-1
Source: PS3
Pro: Anthem D2V
Amp: Anthem A2+A5
Sub: will be upgrading to Sunfire HRS 10 or two HRS 8.

I was thinking of getting a Mcintosh C2200 or C2300 tube preamp and either Oppo 95 or Esoteric X-05 for music. Both C2200 & C2300 have the HT bypass as I do not have extra space for separate 2 channel set up.

Please give advices especially from those with similar set up and managed to have a decent 2 channel audio performance.
dtan
Add a real two channel preamp that has home-theater bypass and it will make a world of difference (use good interconnects too). I like the PS3 for movies but I remember is sucked when I tried if for music but in all fairness I only messed with it for a few minutes.
I will go with a decent cd player- 2nd hand Cary or Oppo 95 to keep the set up simple and see for any improvement from the 2 channel analogue first before I start adding a tube amp. Why do i need an extra DAC if the D2v already has one internally?

Hope this route should work for me and not having to spend more money!!! Missus has had enough of my constant HT / audio system expansion. All you advices have been very useful and helpful to my decision making process. Thank you!!
Good luck!!! Go with 2nd Cary if you care about sound only...and go with 60 dollar dVD or blu-ray for video...or if you want extremely high quality audio and also blu-ray/video, go with Oppo.