Good Morning Pfeiffer,
I recently explored this exact scenario. I have two systems, one PS AUDIO DS DAC, BHK Pre, And BHK 250 amp with B&W N 802's, and the second with Auralic G2 DAC, AudioNet Preamp, Classe Audio CA 2300 amp and Revel Studio 2 Salon2's. I had upgrade ALL my PC's to fairly inexpensive PC's ( int he $200 range) as I felt I should, but no big improvements noted.
So I decided, like others have suggested, to call the Cable Company and try some upgraded cables. I have read lots, from 'upgraded power cables don't make a difference' to the other extreme of expensive cables do matter. I guess I was 'skeptical', as I had not heard much difference so far...
Steve at the Cable Company is fantastic. He asked what price range, and I had no idea. He suggested trying cables from Shunyata, Synergistic Research and Audience.
Well, I think that people who state that upgraded cables do not make a difference either:
1) have not heard good cables
2) do not have a system resolving enough to hear the difference
or
3) can not hear these differences.
I was blown away by the improvement of replacing the main cord into my Inacustik 3500p power conditioner (nice, check it out).
All the cables, although each different, were an obvious improvement in clarity, bass, imaging etc. MY lady and I could always tell an improvement.
The newer SR and Audience bested the older Shunyata. I ended up going through multiple trials and moving up the line of both SR and Audience. Drat! I could hear all the improvements!
I ended up buying 4 Audience Cables, all Audience AU24 SX power cables, and replaced the main line to the Power conditioner and the PC to my amps, so two for each system. I further experimented with replacing the cables to the DAC's and Pre amps, but here the improvements were minimal..as if I had fixed things with two cables.
All the cables I purchased from the Cable Company were used or demo's, at 30 or 40% of retail. Also the Audience cable lines are clearly defined, and sell easily on the resale market. Other companies seem to have so many models it is confusing and resale is more uncertain.
So my take away was clearly that nice cables do make a huge difference.
I did spend some bucks here...but the price of two power cables, while high, improved my systems more than a new component could.
At least now I know..for the price of a deposit and shipping, I got to
A / B compare over and over IN MY SYSTEM WITH MY EARS.
I have since explored and upgraded my XLR interconnects as well
with Audience AU 24 SX. Another clear enhancement. (to us).
Finally, the Audience cables are just esthetically and functionally nice.
They are not overly thick and easy to manage. There are no accessories to plug in etc. The SE models are so flexible...I wanted to be here...price too...but the AU 24 SX sound amazing. After hooking up and changing over and over you quickly learn what is easy and what is cumbersome.
In summary I tired lots, and now know. Yes there are other brands I did not explore, but Steve's guidance was fantastic. I spent basically the cost of a component, and I feel the value and change were well worth it.
If I now change a component, I have the Power Cable ready.
Hope this helps...enjoy the journey!
Ken in Maryland.