help me improve my sysyem

Krell Master Reference amp $120,000
Conrad Johnson Art Preamp $ 18,000
Wadia 27ix DAC $ 8'950
Wadia Transport $ 7,950
Genesis 1.1 Speaker $135,000
NBS Speaker cables $ 15,000
NBS Interconnects $ 9,000

That should make a big improvement. But on a serious note I think it would be helpful to know your budget and what attribute of the system you are dissatisfied with

Martice has said it well and got in before I finished writing my post.

I am not familiar with the asw 1000 nor have I owned any of the equipment that you have. I do know that B&W is a favorite around here so I would rule out changing those. I don't know that a change of cables will give you what you are looking for. However I am familiar with the Adcom gear. Though it has a great bang for the buck, there are better. You have a massive amount of power. You might consider selling the amps on Ebay ($350-400) per amp and taking the money to buy a better amp. I like Conrad Johnson myself, but you might research what other B&W owners are using to accomplish a great sound with them. Hope this helps. Happy hunting.

I don't think that anyone has said you have too much or too little power. I did say you had a massive amount of power however I was not trying to say you had too much. I am saying this, I would rather have 50 super clean watts of power than 150 watts of average power. This is not to say that the Adcom power is junk but to say that there are some 50 watt class A amps which are better sounding. My experience is that a change of amps made the most impact on my system. I found that a change of preamps made a change but not as much as the amp. BTW I changed from Adcom GTP-450 to CJ PFR so I am familiar with Adcom. My son also has Adcom and is very pleased with it. I have been pleased with the pieces I have had. Wires make a subtle change, but I think your system seems to be balanced in that area which leads me to the next question. How do you have the amps connected? Could there be a problem in the amp setup?
As far as power chords and interconnects are concerned, you will find plenty of people on both sides of the issue. Some will say you need them, some not. If you want to try them Audio advisor has a 30 day $ back warranty.