Are upgraded power cables really worth the money?


My system consists of musical fidelity a5 integraded and cd player, b&w 703 and a rel 305 sub. I'm Im using purist audio musaeus interconects and speaker cables. I understand and can certainly see how these cables have helped my system, but am a bit aprehensive about investing in upgraded mains cables. Do they really make much difference? With the system I have what would be the right amount to spend on them. Any suggestions?
zeekzaak
Agree with others here that you need to try them and hear for yourself as no one will convince you one way or the other; this hobby is just that way.

There are free trials avaiable from various manufacturers so I would suggest you partake and enjoy the experience.

Chuck
tvad your advice sounds like my best bet. What would be an easily resalable cord to start with at a reasonable price?
Zeekzaak, it depends on your budget, but here are a couple that usually sell pretty well:
Shunyata (any of the models, but especially Python and Anaconda)
Purist Audio Dominus Ferrox or Fluid

These are good to try with money back guarantees (there are other excellent options as well):
DCCA
Tel Wire

I'm sure others will share some ideas.
Does anyone have experience with upgrading/altering the installation hardwire between the fusebox and the wall outlet? Apart from installing dedicated lines, I could consider higher quality of the wires themselves ...
In theory I geuss the power supply in the equipment can only see maybe 5 feet. If you have a upgraded power cord and or a conditioner that doesn't detract from the music, this is all you need, and dedicated lines. You can upgrade wire but its not really going to help. Use 10 gauge wire for you dedicated lines of 20 amps instead of 12. This will ensure less power loss accross the run.

beerdraft