2. cables
  3. 1266057510

Why power cable effect overall syste sound?

Power cables effect the system sound. This is a well-known fact. My question is why.. specially in case of low power type "A" amplifiers where current is constant. In my single ended 300B the cable creates huge difference. Does it points on power supply PSRR issue? Actually in case of well designed power supply, the power cable should not introduce any improvement. We are spending hundreds of dollars for the 1 meter of cable from outlet to IEG socket where meters of cheap wires running in the walls and it does work. The answer on this question is puzzling me.
abronfer
abronfer OP
10 posts
 
The system sound is defined by system weakest link. I played with power cables and what I found that actually the sound affected not by line(phase) wiring but by cable earth grounding connection/shield in most cases.
foster_9
1,638 posts
 
2-13-10: Abronfer
I played with power cables and what I found that actually the sound affected not by line(phase) wiring but by cable earth grounding connection/shield in most cases.

What exactly are you saying?
hifitime
715 posts
 
I have to get me one of those Playstation's!
jallen
502 posts
 
The benefit of power cables is far overrated. The benefit depends on RF EMI contamination present. They can reduce noise, but when people start claiming huge improvements in sound, etc., I get a little skeptical. Use a cable of 10-12ga, and this should not limit the current. Shielding is a plus, and don't forget to notice the size of wire in your transformer, and how long it is, maybe 20-22ga. Also, the unshielded wire in your house, all 75ft. of it. Magic in the last 6 feet??? Just eliminate a bottleneck if one exists. There are other things to spend money with a bigger return in MHO. Good matching with your amp and speakers is far more important, and getting the damping characteristics matched well. Jallen
bob_bundus
1,834 posts
 
Power cables affect the system sound. This is a well-known fact.

OMG here we go again for the zillionth time. Yes they do so unquestionably. I never used to believe it until I actually tried it. And now I have about $15K just in cables. I gave up a long time ago wondering exactly why though. I don't understand it fully either, but what does it matter? I don't completely understand exactly how my car works either, but I still drive anyway.
More to discover