When a power cord could obviously affect SQ


I have been a bit of a non-believer in power cords having magical effects on SQ but I have been discussing with Frank Ng a pair of PP 2A3 amps I am purchasing from TriodeLab.  He is supplying a pair of his preferred cables and he points out that the  2A3s’ cathodes are fed directly from the mains transformer.

The amps (UPS willing) arrive tomorrow - this should be quite an experience - it has been quite a game finding great tubes.

 

 

retiredaudioguy

@jasonbourne71 

From someone who states this: 

jasonbourne71's avatar

jasonbourne71

1,873 posts

 

Yes, the A - S1200 is a fine match. For the $3K+ you spent it better be! 

All amps of low noise, distortion and low output impedance will sound indistinguishable.

A Fosi V3 would suffice and save you a lot of money, though lacking the bragging rights of the A - S1200.

I don’t think anyone is shocked you don’t hear how clean or dirty your electricity is. 

Nice to see you loiter in another cable thread though. 

I have Franks Triode Lab 45 ffx monoblocks. They are amazing.

After trying several power cord with them, I clearly liked the Red Cords he makes best. They are very reasonably priced and I replaced my preamp pc as well, which now is on my Grimm MU2 since my preamp went away.

interestingly, at least to me, on the DAC I was using before my Grimm, I preferred a different cord, maybe due to more filtering (just a guess why).

I would opt for the red cords over the Zavfino that he also sells.

enjoy the amp!!!

 

@helomech 

If you expect to hear a difference whatsoever, you will.

And what if us openminded people have zero expectations, yet experience differences?

The end. 

Sounds like something that is said from those with expectation bias. 

@richardbrand I’ve quoted your entire post because it should be mandatory reading!  You have provided direct evidence for the theory that it is EMI coming from your component that could make a difference. 

Indeed, managing internal noise generated the audio component itself is the primary concern, not preventing external noise from the ether infiltrating the power cable. That a component that is most sensitive to noise can at the same time be the most significant contributor of noise (i.e. self-contaminating) is perhaps ironic, but true. 

We can bear witness here to those who view a better power cable as some sort of power conditioner, and this is a common misconception. It’s easy to make a power cable that rejects internal high frequency noise (and some cable sellers evidently do). The problem with that is reflecting internal noise back toward the source is going in the wrong direction for the aforementioned reasons.