When a power cord could obviously affect SQ

@lanx0003 Remember, I have been somewhat sceptical.  My thought was that the cathodes of tubes such as the 2A3 are  less isolated from EMI picked up by the cable, hence a greater chance of SQ being affected than with components sitting behind smoothed and voltage regulated power supplies.

@tuberist I looked up Ray tubes and they are now on my list, thanks.

  Congratulations on your new amps. Based on personal experience I believe cabling matters. Im sure the usual bricks will chime in that it makes no difference. It did for me and they are not me. Of all my cables, power cords had the least effect Vs IC’s and speaker cables. If your amps are coming with preferred cables you are a step ahead and I’d just run them. After some break in time ( yes I believe that too) , try something different. I think it’s all about trying it for ourselves and keeping an open mind. Funny power cord story to share. I have my front end all running into a Richard Gray power filter with mid tier cords. I replaced the filter cord ( 20 amp ) with a Shunyata Venom HP and was surprised at the level of improvement. Again I had to try for myself. Enjoy your gear , Mike B. 

If you have recommended power cords I would jump on them. 
 

I just bought a new DAC so I need an additional plug. I’m in the middle of figuring that out. I think all cords make a huge difference. I’m switching back and forth between Nordost Heimdall 2 and Frey 2. So far, the Frey is winning by a lot. But the cost…..

Enjoy your new amps!

Once very skeptical myself, my logic was, standard home center wiring from the breaker box to the outlet, and that last 6 feet a miracle happens? I just couldn’t wrap my head around it. The a dealer said, take this home try it for a month, break in period, and if you don’t hear a difference, bring it back. How could I go wrong. Well I did not seem to notice any real difference, until I took it back. That night I was listening to the same music and I realized, something was missing. Bass had lost its definition, mid range was less pronounced, vocals seemed to have a more brashness. Music I had never noticed these things, was not as enjoyable as they had been.

So now came the question, what about other brands. I contacted the Cable Company and asked for their recommendations. I requested 3 samples in my price range from their lending library and narrowed it down to the same cable the dealer had let me use. I won’t mention the brand or model to avoid that debate. But I have standardized on the brand for all my cables, since I do believe there is a synergy when one brand is used. Plus I had already settled on them for my interconnects.

So I recommend you contact the Cable Company and get their advice and try some from their lending library. 

My experience with power cords and amps are that it is one of the most sensitive to  high quality wires in a high end system. Typically speaker wire first, power cord to amp, then interconnects then the rest of system and then power cords to the rest of the system. A generality that will depend on your components and system. But, I have found power cords to the amp can potentially have a really big effect. 

These days power cords produced by most serious high end wire companies come in different versions... one for low current components and one for amp. The ones for amps emphasize current flow and components emphasize noise reduction and isolation. 

I recently went through a process of trying to upgrade my Audio Research Reference 150M’s power cord. It took me a year. While all high end cords sounded better than the very high quality large gauge power cord supplied by Audio Research, each imported a slight nudge to the tonal balance. It wasn’t until I found the Audio Quest Hurricane that I instantly found the perfect match. If I had a bit more money at the time I would have purchased a Dragon. 

Typically I recommend. Get your amp(s). Listen to them for a few months. Then try some cords so you can choose the perfect one for your system.