interconnects vs speaker cables vs power cords - which make the biggest difference?


Like the subject line says, I am curious what others think in terms of whether interconnects, speaker cable or power cords make the biggest difference when it comes to noticeable sound improvements, or are they all equally important?  I am thinking of upgrading them all and am trying to decide how to allocate spending.  Thanks in advance.
ccandte
Radio Shack Pro 35 Titanium headphones, weren't they designed by the legendary Henry Kloss?  But no graphene anywhere?
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Here is an experiment that you could try:

String a WalMart or Home Depot extension cord from your wall outlet; also do the same thing with a sub $10 power strip/extension cord.  

Plug in your after market power cord to the female end or power strip.

Then plug your after market power cord into your component(s).

This is a very good question... I haven't delved into it as much.  All I know is I like my cables. 
Keith I agree with you, once the extension cord burn in ,as usual you get more improvement, you need to move cables to see which one work on every component. Be patient leave cables for at least six days.
 They all count but the power cable least I'm sorry but it is just my experience.  Thinking about it, it wa the best cable that made the difference and they were interconnects at the time Cardas Gold Refs used .
In my experience, it’s the power cable.
I’ve had expensive cables ever since 1986. Started out with MIT, then when I became an audio writer, changed to Transparent. Also had XLO.
Dropped out of audio for a while and came back in 2003. Saw  a new name in the power cord/speaker cable field, Shunyata and was curious. Read a few reviews and thought, 'this sounds like something I'd like,' so I bought the speaker cable (Andromeda Constellations Series) and then the Aries interconnects, as well as Nordost Quattro Fils. Everything sounded nice, but not quite...what I was used to. (Turned out to be the Marsh amp. Too ’polite.’)
Then I saw that Shunyata had power cords, read up on them and bought the Black Mamba (2003 version), Python and then The King Cobra V2 (2003 vintage, their first line of power cords). When I inserted the King Cobra into the system and placed it on my ASL Hurricanes, the system came alive in a rather spectacular way. Dynamic as hell, extremely strong mid-bass, imaged like nobody’s business. So, I’d say the power cords - with a caveat.

If you insert a speaker cable that is a better model than the power cords you have - and they are from the same manufacturer - the speaker cable will appear to be the most important. So, for example if you have Nordost Purple Flare power cords and have been using Red Dawn speaker cable - and then insert Frey 2 speaker cable, it will appear that the speaker cable was the big improvement. But lets say that you then (keeping the Frey 2 speaker cable in your system) then purchase a Nordost Try2 or Valhalla2 power cord, you might think the power cord suddenly "out-powered" the Frey 2 as the bigger improvement.

That said, I’ve found that all items in one’s system need to be equally good, but the power cord, given that it filter out impurities in the electricity in your system, will push the system higher.

I have found, over the years, that, in some manufacturer’s lines, one component compensates for the other. In the old Goldmund components, circa 1986, the Goldmund front end components ( The Goldmund Studio, for example) were just slightly dark (yin), but then, when they introduced a line of electronics (such as the Goldmund Mimesis 9, which I owned), the electronics were beautifully clear and transparent - and it was like you had inserted a 150 watt bulb in a lamp after living with a 75 watt bulb for so long, to the point of the sound being very close to Spectral electronics (slightly "yang" - sounding) speaking strictly of tonality here. But Put the turntable together with the amp (I was using a Convergent preamp, also of 1988 vintage, which is itself slightly "yang") and it was a match made in heaven. However, if you used the Goldmund electronics with other manufacturer’s components, you might well wonder what the fuss was about.

My two cents:
Power cord....you must get the RFI/EFI right from the start otherwise noise will affect the chain of components to never return. I use Stage lll with a wonderful affect. Power supplies via manufacturer vary to a great degree so YMMV. Try on your TV to find out noise cancellation. The picture won't lie.
Interconnects.....source to preamp. next preamp. to amp.
Speaker Cable.....all to a varying degree but the least in my experience if the front end is taken care of.
Everything lost in the chain will never return so it all matters.
Gwalt
Why are we all trying to reinvent the wheel or beat a dead horse , allot of this has been done already in the 12V car audio world. If your into 12V audio you know the big three upgrade is done along with any decent subwoofer install , big three is upgrading your positive wire from your alternator to your batt, ground from alt to chassis , neg from bat to chassis basically a charging system upgrade cause stock sucks, Power cables are like doing a big three in your house it allows your expensive stereo to pull more power from your outlet it does help if you have a conditioner , run a blender in your kitchen and see if it doesn't show up on your tv in some way  , these expensive power cables also do a good job of keeping interference out because they are in effect just antennas and need to be shielded along with being able to conduct electricity better that's number 1 , 2 why on earth would you have an inferior speaker cable if you spent all this good money on nice towers , and 3 interconnect spend as much as you can afford without not being able to buy diapers audio quest Forest is good enough allot of the tech can be found in the even higher end cinnamon line there splitting hairs i think and is just an opportunity to rake more money out of you cause i can't tell a diff . power to stereo is most important , its also nice to upgrade the TV power cable but is not needed , Also Dudes get your apps thru your TV there is no HDMI for video except for the hdmi to your receiver for sound and let your TV networking cable go into your modem for Fast ethernet connection opposed to getting your content on a coax network Comcast verizon.... you have a bottleneck on coax and then have to come out of your verizon box on HDMI go to the stereo and then on to the TV .  If you have a netflix app on your TV its immediate no loss no HDMI cable for video  , i would say its still better having a blue ray 4k .       nicholas.giordano@att.net  love to hear your thoughts , please dont put to much thought into it. 
The "pecking" order for my small 2-channel system is....

1. Speaker Cables
2. Interconnects
3. Power Cables

If I had a large power-hungry amp, power cables might prove to be more important but my Bryston Integrated Amp doesn't seem to care what I feed it with. I do, however, replace OEM 18AWG PCs with generic UL-listed 14AWG ones because they're inexpensive and provide (in theory) better power delivery.
From an EEs perspective,  if power cables make a difference, then you've got a poor power supply design. 
I doubt that’s true since power cords oft make the biggest difference for amps with big robust power supplies. Good try, though. 
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I’ll revive a pretty important topic for us and for those we try to help.

I say get everything with your power done right, including very stable grounding. Then, Ii you don’t think power cables are the right ’first upgrade’ to buy then, wait, and buy one eventually. Once you buy a power cable you want, then go AB them next to some reference Nordost. Maybe not even that high up their line. What I’m getting at, is that you’re going to think you just put in a $2k capacitor and top transformers with that one power cable alone. A good one can do that kind of work for your system. There is a reason cables (power, and others) are highly considered in the hospital field tech. work. Yes, some is for spark safety, others have nothing to do with audio, others have a lot to do with EMF/RF. For instance, do you want noise in your system? Neither do the doctors doing a kidney removal on a cancer patient. Then find some RCA cables, better yet, then get a tool you can work with that will pick up any EMF/RF on your RCA cables. You’ll be more concerned with EMF rather than RF at this point. RF can be simply treated by moving your system from any and all mobile devices. EMF more important because it comes from bad grounding (mentioned earlier) bad electric work by the internet tech or any tech using that tech in your robot home. I’m simply going wireless because I have more trust in how to do it right than the audio companies who continue to push Ethernet as they don’t want to drop some R&D cash on WI-FI for their next product. So they simply go with what the audio engineers think they know of Wi-Fi (nothing). Ask Paul (the PS Audio guy about WI-FI), but he’ll tell you to use the connection on his DAC, (USB probably piped from WIFI)

See where I'm going with all this power trip stuff? A LOT of place, too many. Power is everything. Consider it well. Then be happy and do jumping jacks with your RCAs

Dang, did not mean to ramble. Tired and moved all day. But you get my idea. If you disagree, please let me know, I’m still learning and wanting to learn about this topic.

@ccandte Six years late, but here’s my experience as well as first time delving into a subjective mater on audigon. here we go!

I would say based on my experience and conclusions aftermarket power cables SOMETIMES matter, whereas interconnects and speaker cables ALWAYS matter, so determine your power situation before finalizing your ranking.

Here’s the logic behind this sweeping statement.

1. I have NEVER heard a difference between aftermarket power cables and the stock cables that came with the McIntosh amp nor the McIntosh preamp/DAC in the setup in my home.

  • I have auditioned 4 cables over the years on my home setup and could not hear any difference.
  • A McIntosh engineer once wrote to me that said there should be no need to use anything other than the stock cable if power supply is designed and built properly. I’m not sure I would go that far. I would imagine bad power in (whether EMI, RF, or voltage issues) would cause some problems.
  • Also, Judging from the experiences of our fellow Audigoners, and many other places, a power cable matters and when it does, it matters A LOT.

2. Contrary to my experience with after-market power cables, EVERY speaker cable I have auditioned made a sonic difference. Some a lot, some a little, but they all changed the quality of the sound.

3. Likewise, EVERY interconnect I have ever auditioned has made a difference. I’m not sure I could rank the impact speaker cables and interconnects though even in absolute terms much less factoring for price.


So, before you rank order, my advice is to first determine if the power cable even needs to be a criteria for your particular situation. If not, then you can focus your budget (and efforts) on the other two entirely. If the power cable does matter in your system, then fortunately you have already received a lot of great info on this subject from other posts on this thread. Let us know how you fare.

In my experience Power Cables and Digital Cables can make big differences while Interconnect and Speaker Cables make very small differences.

I'm always shocked at just how easily differences can be perceived between power and digital cables. I find decay reproduction and low-end performance can vary significantly from cable to cable.

On the other hand, I generally hear very little difference when comparing interconnects. I've tried many different RCA interconnects and always end up returning to my budget Wireworld cables because I never hear enough difference in interconnects to justify the cost.

I once took part in a blind speaker cable test. A set of very expensive speakers cables was compared to a pair of car battery jumper cables. There was no consensus in the room as to which one was preferred.

I’ll add that I’ve been working on upgrading PC with the help of the Cable Company (highly recommended). They recommended that I start with my power conditioner cable (big difference), the DAC ( clear difference, but not as big), pre, and amps (I haven’t done yet)—so down the chain.

I will also add, if you use digital, consider your inputs there. Going to a fiber system and good Ethernet cord definitely reduced glare (fiber did 90% of it for me).