You didn't mention any budget constraints, so I will go ahead and recommend that you try a High Fidelity Professional Series power cord. ;^)
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What do you mean by a very full, wide and deep soundstage? I have heard of a wide and deep soundstage. Are you talking about a full sound (Rich, vibrant, musical, etc.)?
If so, your list confuses me. As normally extended highs and tight bass go together with more transparent cords like Nordost, while full sound and superb mids go together with warmer sounding cords like Elrod EPS-2/3 Signatures. I don't know of a cord that does it all, especially at that price range.
Usually folks are either looking for more transparency (speed, resolution) OR more musicality (warmth, fullness). Going in one direction usually takes you further away from the other direction. Just as one cannot go east and west at the same time. Most folks like to balance the sound to suit their tastes, but to do that, you need to know what direction you want to head in from the start.
If you don't know, no harm, you will just need to experiment for yourself and see which direction works best for you. The Nordost will provide excellent speed and resolution, but can sound thin and sterile in some systems. Cords like the Elrod, Acoustic Zen Gargantua II , etc., can sound very rich and musical, but can also sound slow and lifeless in some systems.
In the end, you pays yer money, you makes yer choices.
For an Adcom 5802 I wouldn't go crazy. Kimber PK10 Ascent will be plenty good or find a used but same PK10 Gold. $400 or less new. If you don't have dedicated circuits and decent receptacles to start with you're not going to hear the full potential of your amp or a better PC. If you don't have dedicated circuits, I'd start there first.
True. I do have a Furman power conditioner and I have upgraded my pre-amp to a McIntosh C2500. The next component upgrade will probably be the MC452, unless I go with used 501s or 601s.
Thank you for the input. I was referring to a full and rich sound and what you said does make sense jmcgrogan2. That balance will be interesting to find.
The PK-10 powercabels are a lot better than the powercables in the lower price ranges of Nordost. I know it, I sold them for over 9 years of time.
The limitation of the Nordost is that they are incomplete. Even the Nordost Valhalla powercables ( I owned them and sold many of them) are incomplete.
So what is incomplete? Sound is created by about 8-9 different parts you judge sound for. Stage depth has always been a week point of Nordost and still is.
The other limitation is individual focus of instruments and voices. In real voices and instruments are small and direct. Nordost is not good in creating a very small and direct focus of instruments and voices like other cables can. PK-10 is superior in this part compared to any Nordost powercable.
Each brand owns his own d.n.a. in sound and how the stage is being build. I know exactely the properties of Nordost. I have done hundreds of tests with them in the past.
That is why you cannot use a brand blind in a set. Because you need to be ware of the properties.
In the 9 years I sold Nordost I often combined it with Kimber interconnects to make the overall sound complete.
Nordost power, interconnect and loudspeaker cables are togheter incomplete.
When you change the Nordost interconnect by a Kimber interconnect you add different properties.
What did it change compared to a whole set of Nordost?
It made te stage deeper and wider, the individual focus became a lot shaper, intimate and palpable. And the mid freq became richer and more musical involving.
That is why you need to understand the properties before you can buy any brand. This will never give good results.
Spipa, if you are going from Adcom to Mcintosh you are going to get way more of what you are seeking with the change naturally. Mac and Adcom amps have very different "sounds."
Why wouldn't you wait on PC's until you get your new amp?
I have found Mac's are not as sensitive to PC's as other amps, my Classe is a good example. I use Wywires juice on my Mac 501's and find they do not emphasize any characteristic of the amps but simply lower the noise floor for a blacker background.
I would check High Fidelity MC O.5 (not a power cable) I would plug it into the same wall socket that has your existing power cord plugged into. Well below your budget, with all of the quality you are looking for in sound. and comes with a return policy if its not what you want. BUT I MUST WARN YOU they are very addicting the more you add to your system the better the sound gets. I started with 1 and now up to 8 with the notion that i will be adding more.
Thanks for all the ideas (esp the Mcintosh owners). I have an MC275 with OEM power cord and looking to upgrade. Any other thoughts on a good $300-$500 power cable? Anyone think a certain brand of power cable would influence tube amps or is power=power? I've decided if I'm spending this kind of money on a system that I am going to ABX test in-home. I recently did this at a store and compared interconnects at $100 and $450 and speakers at $9K and $16K. Got it "wrong" on both (not truly wrong - I'm old enough to know I like what I like. Interesting, but a little-dated article where a well-designed ABX study with a solid n showed 49% got the "correct" answer when looking at Valhalla from Nordost ~$4,000 against some <$100. Love to hear the counter argument. This article does give a rationale behind audiophiles vs. non-audiophiles not being able to pick up difference. This reads like a NEJM study:...http://hometheaterhifi.com/volume_11_4/feature-article-blind-test-power-cords-12-2004.html