Bel canto monoblocks and power cables

@thomaswv - Like you, I found good PC’s on my NAIM amp did not make an immediate noticeable difference - I had to find the right track that made the improvements more noticeable.

Those improvements are the micro details of the venue acoustics - now I know what improvement power cables make it is easy to hear and noticeable when you change back to a cable of a lessor ability.

I use the following DIY cables that I have compared to a few high priced products and found the others lacked the bass dynamics (slam) and very fine details of these
http://image99.net/blog/files/be8de0c383c5434907610d6b55049e69-75.html

Check them out - despite their apparent complexity, they are pretty easy to build

Regards - Steve

Yes power cords can make a difference. But which ones? The only way to know for certain is to try them in your system. 

Consider going to THECABLECOMPANY.com read about their lending library. 

Also see  JPSLABS .com  Their cables are excellent. 

Thanks for the input. I’m going to try something I’ve never done...go backwards after a tweak, try the monoblocks again with stock cords. I absolutely hear a difference with sources, but with these particular amps I’m just not sure.  

@tomaswv  - listen for the venue acoustics in a live recording, such as a classical piece - preferably with 4-6 instrumentalists.

You should hear more echoes and reverberations and background noise.
e.g. in one recording I can now clearly hear trucks in the background.

With standard power cables it will be less pronounced

Good luck with your quest - Steve

Thanks to all for the insight.  I tested all three again--there was indeed a slight improvement over the stock cables. With the stock cords, the soundstage narrowed slightly--like one foot--and there was a little realism/vibrancy missing from Ravi Coltrane's sax on Alabama (front In Movement).  The Nordost and AZ were almost identical -- I went with the Nordost for now but could easily live with either.  These are Heimdall IIs, whereas when I chose the AZ over Nordost a few back they were Vishnus, so that may account for my current choice. At least for my Bel Cantos though, only a very slight improvement over the stock cables.