what else do i need to improve sonic performance?

People can suggest quite a number of things that in their opinion may improve sonic performance. However, you left out key details. for example, what is really missing in your opinion from your system's sound? Are you in Heaven when you sit and listen and never want to get up? or is something(s) missing? and if so, what? lack of depth, dimension, accuracy? too bassy? no mid bass or highs? What is your listening room like? many times the room itself can really negatively impact the sound. Simply suggesting equipment may not help if one doesn't isolate the real problems. for me, I need to really address the room itself with people knowledgeable in that area. Do you have friends knowledgeble in audio, music and equipment? that can come by and listen and offer opinions?

enjoy

What dont you like about what you're hearing? You have some amazing gear. Your amp and speakers are a well known match. What stands are your speakers on? How far away from the walls? Hard woods or carpeting?

I firmly believe that all the basics should be done right, which means power cords should be upgraded, than you can make an informed decision - imo

I would not change any equipment until you do this, I think you may well forget a need to upgrade/change

Mrtennis I dont know if you are talking about the Perfect wave DAC or the transport?
I have to be honest i feel more satisfy with teh sound coming out of the hegel HD11, back and for i tried so many times, maybe is just synergy with rest of the gear.
my room is around 5 meters long by 5 meters wide, but is sort of triangle shape, at the begining i hated but the sonics improved i guess was more psichological about the structural shape.
Maybe I am biased coming from full range speakers with amazing Dymanics as the AZ crescendos and Ayon triton amp, I was told by Paul from Tube USA that when you tried a 120 watts class A tube amp its hard to get satisfaction with less, but so far Luxman/harbeth is a very pleasant surprise
so the reviews and forums were right cause i bought them without havent listened, due to geographical circumstances and no dealers around with teh products.
I am missing dynamics and the cymbals of Pat Metheny group coming trough in the way we like, but certainly an amazing midrange to die for.

i will keep reading advice about power cables and power cleaner plants, maybe i can look into a cartridge upgrade on my rega P5.
Vinyl sound is keeping me closer to analog this days,
even with an excellent computer/DACs combo, i can be listening to lps whole day, Cds, get fatigue quiet fast what is a shame cause i have a lot of great music.

I cant thank you enough for your responses,
thank you all.

I would advise against spending money on ultra expensive wire, but you wouldn't listen, so what's the point. The fact that you asked the question says you want to buy something.
Cheers.