New expensive power cord for amp and no change in sound?


I bought new an expensive(for me) well known and reviewed power cord for my very good amp and plugged it directly onto the wall socket. After a couple of weeks of daily use I hear no change in the sound quality from a $500 cord. I don’t want to name it for fear of getting my thread deleted. You would know it or at least be aware of the company. Did I throw away several thousand dollars? Before I get the snake oil answer I want to let you know that I bought an upgraded cord for my pre as suggested by the pre’s manufacturer and am pleased with the results.

I guess for full disclosure the amp’s manufacturer said don’t bother. But I had had good luck with the pre so I thought it would be a good idea.

Anybody else have this happen to them?

roxy1927
Post removed 

Yes.  I replaced all my power cords with a recommended brand, amp, and all sources and.... no diffo.  Later, I replaced th 15 amp wall receptacle with a 20 amp audio receptacle and BAM, music jumped out in force. Lesson?  I found the weakest link.

Cable advice.

1. Make sure it is proper length.

2. Make sure it is flexible, unless you are into elephant trunks.

3. Shielding is a good idea.

4. Read the marketing. Gobbly gook pufferry, run away.

5. Buy commensurate with the cost of your system.

6. Keep expectations modest.

7. Read forums with large grains of salt.

8. Don't fret with a lack of significant improvement.  Just admire your purchase; your friends surely will.

9. Don't post cable threads. 

Got my head buzzing this morning:

It could be that the $500 cable you mention may not be the best premium PC in its price class for YOUR system. Try others, with return privileges? If you have the ability to audition and return, you might try the price category above just for grins. It might just produce a permanent one?

Or, it could be that your amp, in your system, in your household wiring, in your electrical grid, at the time of day you are listening is not producing anything NOTE-worthy? Punt?

We read the term "expensive" on this forum from time to time. As a general statement, a very-good-excellent audio system will be "expensive." Well selected associated items will also be "expensive" in the course definition of monies spent. But, not "expensive" related to the overall cost of the system and the sonic (or other) benefits received IF "well selected." Divorces are expensive. Paying out of pocket for laser prostate surgery is expensive.

When a PC is included in the box when you break the seal and open it, I suppose a $15 PC "upgrade" would be expensive by comparison?