[kanna]

Hi.
Currently I'm using SToM USB card, I'm not sure this USB card is enough or not.
If I replace stock power cable(at PSU), the sound might be better?

 

[SoulSyde]

No, it is not nessories.

 

[Chodi]

  Hi.
Currently I'm using SToM USB card, I'm not sure this USB card is enough or not.
If I replace stock power cable(at PSU), the sound might be better?

 
The only thing I have found that require a special power cable is to eliminate RF if you are having a problem with that. I have one tube amp that was particularly sensitive to RF and it did fix the problem.

 

[CantScareMe]

Get a power conditioner (instead of your plugged extension lead/surge protector). These things do make a difference to a range of equipment. It's easy to tell the difference in my cases and has been more pronounced than swapping a £100 headphone amp with a £500 one in some cases.
 
A power conditioner by clearer audio is a good start.

 

[drumiha]

Give it a try to a power regenerator ; I have the Power Inspired AG500 and it really made a difference in my system.

 

[kanna]

UPS is not enough right?, How about power cable?

 

[Andrew_WOT]

There are better things in this hobby to spend money on.
 
Blind Test Power Cords
 

 Using the blind ABX protocol, we failed to hear any differences between an assortment of generic power cords and Nordost Valhalla. Therefore, we cannot conclude that different power cords produce a difference using the blind ABX protocol. However, we also cannot conclude that there are no differences. We simply failed to prove that differences can be detected to a statistically significant degree using a blind ABX protocol.

 

[SoulSyde]

  There are better things in this hobby to spend money on.
 
Blind Test Power Cords
 

 
 
Hallelujah!

 

[drumiha]

Hallelujah again !