I am driving thiel CS6s with two Classe Cam-350s and a Classe 300 processor.I tried Analysis Plus micros beteween my Oppo 981 and the 300, a world of improvement over my existing Audio quest ICs.Next I added Analysis Oval 9 12' speaker cables.The sound was very bad,I lost all detail and gained some heavy flat bottom.Granted the cables were too long and the older purple version,however the sound has taken me aback!Any suggestions and or thoughts on what I should try next??

I had a very similar experience with the Oval 9; mine were biwired. That was one of the biggest disappointments I've experienced with my system. I went back to my trusty Audioquest Slate biwire.
My experience with Oval 9 bi-wire (purple version) is quite good. Fantastic top end. Nice midrange weight. Balanced.
Alpha Core Goertz MI-2 or MI-3 are worth a demo and sound great.
Cable recommendations are very difficult to make as each system is different and what works for one system does not necessarily mean it will work in another system, additionally, everyone has there own tastes as to what sounds best to them. Each of these recommendations are very sincere and I am quite sure it works fine within there systems and they are quite happy. I have always found that the MIT cables have had a particular synergy with what ever system I have owned, It seems to be due to these cables having selectable network boxes which enable you to match the impedances of your electronics as well as addressing the many additional interactions between your electronics and speakers, enabling you to extract the optimum performance your electronics and speakers are capable of. This correct matching can often make MORE of a difference than changing other pieces of electronics. I suggest you find a dealer who will let you AUDITION the MIT cables within your price range in YOUR system, I am pretty sure you will be quite impressed and your search should be over. In addition, because of our crazy hobby we tend to change electronics quite often in search of the holy grail, one great advantage of the MIT cables is that if you do make a change, you can adjust the impedance of the interconnects to achieve maximum performance with your new electronics, thus saving the cost of a new set of cables to help match your new electronics or speakers. Of course you will probably upgrade to the more expensive Mits, but that is the nature of our hobby.
Call The Cable Company and tell them about your system and what you would like to spend. Then have them send you MIT and Synergistic Research Tesla cables then brace for impact. You're in for an amazing ride.
I went from AP Oval 9 bi-wire to Acoustic Zen Satori Shotgun. Everything came alive bottom to top. An amazing difference between these two cables.
I think you would be very pleased with these.
I went from AP Oval 9 bi-wire to Acoustic Zen Satori Shotgun. An amazing difference between these two cables.

Smholl (System | Threads | Answers)

I cannot emphasize too strongly that wire is as system dependent as any other component.

One has to hear this stuff in one's own system to make any determination.

Suggestions in these threads are only rough guides at best.