Do I need a power cable - if so what brand?


I am a newbie to high end audio and need some help in optimizing my setup. I have Yamaha V1800 bi-amped to B&W 683 and bi-wired to B&W center. Yamaha amp and other audio componets are connected via Monster HTS 3600 power center. I am using Xindak FS-1 for fronts and Monster Z2 ref for center. 95% of my usage is for music.

Based on the above setup, should I replace:
1. Wall to Monster 3600 power cable?.
2. Monster 3600 to Yamaha receiver?.

Which of the above will give better sound performance (if at all) and if it does, what power cable should I consider?.
satiger
Like wise I said earlier, I did some detailed listening between direct wall power vs through power conditioner. Definitely I did clearly hear tighter, clear bass with power conditioner. On highs, it is more clear and detailed and could easily say that sound waves lingered around my ears more than one without power conditioner.

I am no means an expert in audio/electrical engineering but based on my testing that is what I found out. I am getting an Oyaide SWO-GX outlet from another audiogoner.

Next, I will get a good power code before trying for a dedicatied line (wife factor :) ). Atleast, my outlet is not shared with any other gadgets such as fridge/heater etc but for lighting the room.

I also used Isotek CDs few times and that helped a lot is soundstage and localization of soundfield. As of now when I play music, my speakers disappear - I could separate the instruments and localized them (based on the recording). Hoping power outlet and a cable improves it further.
Good! But in your most recent assessment of the power conditioner, did you compare the sound with everything connected through the conditioner to the sound with nothing connected through the conditioner? If not, and you had some things connected through the conditioner and other things connected directly, as I explained earlier your findings may be misleading and your setup is probably not optimum.

Regards,
-- Al
Almarg,
In my most recent testing, I followed the same steps as earlier i.e receiver connected directly to wall and rest all connected via power conditioner.

In few days I will connect everything to wall and repeat the testing and report back.
What I find interesting on Agon...particularly in the cable forum.... is how quickly a simple question turns into a debate completely off topic. I doubt Satiger was interested in degrees, objectionist opinions etc etc...

Debate it in a new post, but keep the discussion on the question at hand.
I used to have a Ultimate Outlet and Hydra and experimented with different powercords. Then a buddy of mine let me use his RSA Jaco. One by one I plugged components into it. 1st the cd player, preamp, and then amp. Each time a noticable improvement was easily recognized. When the amp was plugged in everything came into focus. I never thought a power conditioner could make a large improvement. I ended up buying a Haley.