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

@dentdog -

       KUDOS, to another experimenter, for trusting their ears and senses!

                                          Rewarding, isn't it?

                                 Enjoy your systems and music!

@ps-

      KUDOS, for experimenting with your system's sound/trusting your ears & senses.

      Supra follows some of the same basic science/construction as I've mentioned, if you've read their explanation, as to why their PCs sound better* than stock/common wire.

 cables that, from my perspective, are priced absurdly high, make no sense.

                                                      I agree.  

       However: those more comfortably situated than I, with much higher end systems and larger/better listening environs, can afford and demand the very best the likes of Kimber, Analysis Plus and Synergistic have to offer.

                                                      I would.

*https://www.madisoundspeakerstore.com/wire/cble/supra-lo-rad-power-cable-cs-us/

@ps-

         What came first- the, "Yeah, but...", or: the troll?

No one can tell you whether/how your system, room and/or ears will respond to some new addition.   There are simply too many variables.      LIKEWISE: no one can possibly know whether a new addition (ie: some kind of disc, crystal, fuse, interconnect, speaker cable, etc)  will make a difference, in their system and room, with their media and to their ears, without trying them for themselves.         Some companies offer a 30 Day Satisfaction Guarantee, so- those that are actually interested, have absolutely nothing to lose by trying (experimenting with) such.           Anyone that knows anything about the sciences, realizes that something like 96% of what makes up this universe, remains a mystery.             For centuries; humanity’s seen, heard, felt and otherwise witnessed phenomena, that none of the best minds could explain, UNTIL they developed a science or measurement, that could explain it.           The Naysayer Church wants you to trust their antiquated science (1800’s electrical theory) and faith-based, religious doctrine, BLINDLY (their credo: "Trust ME!").       Theories have never proven or disproven anything.  It’s INVARIABLY testing and experimentation that proves or disproves theories/hypotheses.         IF you’re interested in the possibility of improving your system’s presentation, have a shred of confidence in your capacity for perceiving reality and trust your own senses: actually TRY whatever whets your aural appetite, FOR YOURSELF.                                The Naysayer Church HATES it, when THAT happens!

@wesheadley  (et al)= Nothing but further Dunning-Kruger runway builders.

                  Worthy of nothing but a short snort of derision and being disregarded.

             Give their ilk an opportunity at a bit of education and they respond with the same old primitive drumbeats.   

                            Like trying to teach a box of rocks to sort your socks!   

                                                                     😏

@wesheadley -

Unless there was something very wrong with your last power cord, or it was just a very poorly made one, you're not going to here any differences other than those that occur within your own mind via confirmation bias.

                                               And (again):

          Anyone that feels compelled to harp on not hearing any differences, is obviously too obtuse to understand the term "variables" (as frequently mentioned) and worthy of disregard. 

 The claims made by so many ultra-high-end cable companies are pure sci-fi fantasy-- and they have the non-science to back them up! Just go for quality made cables that use quality materials, especially the connectors, and you'll be fine. Don't drive yourself mad buying into voodoo claims made by companies that make obscene profits by trying to differentiate their products with sci-fi lullabies. 

       Another rerun, since so many of you are a waste of keystrokes:

Cargo cult science is a pseudoscientific method of research that favors evidence that confirms an assumed hypothesis. In contrast with the scientific method, there is no vigorous effort to disprove or delimit the hypothesis. The term cargo cult science was first used by physicist Richard Feynman during his 1974 commencement address at the California Institute of Technology.[1]

Cargo cults are religious practices that have appeared in many traditional tribal societies in the wake of interaction with technologically advanced cultures.

     Do a bit of research and you'll learn those primitives were limited in their understanding of what they saw with their eyes, based on their prior experience, education and BIASES.

                                                A rewind:

                 It isn't that the Denyin'tologists are ignorant.

               It's they're knowing* so much, that's WRONG.

                       *heart of the Dunning-Kruger Effect

                                              OR, two:

     The Church of the Naysayer Doctrine (like every other faith-based, religious cult) has as many dopes as it does Popes.   

     Bring up anything resembling SCIENCE/PHYSICS, dated later than the 1800’s and they become apoplectic, not having the formal education to comprehend the concepts, or- possible ramifications.    THAT would be hilarious, were it not so pathetic!        

           Gimme That Old Time Religion, Gimme That Old Time Religion, etc.

        At the very first mention of something as simple as Wave Function (a BASIC tenet of Quantum Mechanics), the Cargo Cult will label you a KOOK.

        But remember: they can only view/understand you, based on their limited experience, education and BIASES.

         They have overlooked the fact that, if not for the hypotheses/theories and experimentation, regarding Quantum Mechanics: a plethora of modern conveniences, medical devices and the gear they so love, would not exist.

          Had scientists, chemists and inventors shared the doctrines of the Cargo Cult (Denyin'tologists), there would be no semiconductors, computer chips, LASERs, or Magnetic Resonance Imaging devices (MRIs).

                                         Solid State amps?

                                     OOPS (back to tubes)!

                                        Your Smart Phone?

                                        FA'GET ABOUT IT!

                                         Your car's GPS?

                                                NOPE!

    Then too: some may be willfully ignorant and just enjoy being contentious.

                        Others: obtuse, uneducated*, misinformed?

      *Typically, from what's been exhibited here: H.S. STEM, if that, would be a safe inference.

      Either way: the result, when the Cult begins its rhetoric, is a classic demo of the Dunning- Kruger Effect.

                                          But, I digress: 

       Bring up those pesky details, regarding the likes of QED, Dielectric Absorption, Poynting's theorem and possible application/effects, relative to frequency, that our musical signals are carried via photon or wave, outside the conductor and you're a KOOK?

         Again: the Cargo Cult can only understand anyone with an actual background, experience and education in Physics/QED, based on THEIR own beliefs, education, experience and biases

                                      Remember this?.

     One anecdote  that some may find interesting: their walks in the woods and how his father would encourage him to look beyond the fact that something in nature exists, into why and how.

     It saddened him that while attending college, during a visit home and one of their walks: his dad asked what he was learning in college.

     At that moment, Feynman realized: if he tried to explain what he was learning, there was no way his dad could understand.                               

                            It wasn't an insult or condescension.

                                                Just reality.

                                    Oh well: let 'em go build a runway!

                                                    references:

https://en.wikipedia.org/wiki/Applications_of_quantum_mechanics#:~:text=Examples%20include%20lasers%2C%20electron%20microscopes,systems%2C%20computer%20and%20telecommunication%20devices.

https://www.forbes.com/sites/chadorzel/2015/08/13/what-has-quantum-mechanics-ever-done-for-us/?sh=37c459944046

https://uwaterloo.ca/institute-for-quantum-computing/quantum-101/quantum-applications-today

          But: I'm a kook, because I believe in the SCIENCE, from which all that sprang?

     https://www.smithsonianmag.com/science-nature/five-practical-uses-spooky-quantum-mechanics-180953494/

           Einstein got that last one wrong (Quantum Entanglement), BUT- I still wish he'd been alive, when the Hubble Telescope proved, what he considered his, "greatest blunder" (his inability to bring symmetry to his field equation, without lambda).

  https://www.aps.org/publications/apsnews/200507/history.cfm#:~:text=Einstein's%20original%20equations%20had%20been,how%20the%20universe%20will%20end.                                            How about that?

Another example of a hypothesis/theory, with no way to EXPERIMENT/MEASURE, what you're sure must be there, in some detectable way, or another.

                                               Just for fun:

https://www.scientificamerican.com/article/6-times-quantum-physics-blew-our-minds-in-2022/

                                            Happy listening!

 

 

 

Should have called the cable company.    Try before you buy!

                                              EXACTLY!

        There are also a number of other cable manufacturers and purveyors that allow a listening period and return policy, if you are dissatisfied/unimpressed. 
         ie:  Synergistic Research has offered a liberal audition period since the early Eighties.      Matter of fact: they offered to send their entire line of interconnects, for one to audition/experiment with, before they made their choice and purchase decision.

                                               And (again):

          Anyone that feels compelled to harp on not hearing any differences, is obviously too obtuse to understand the term "variables" (as frequently mentioned) and worthy of disregard.  

          My only goal in these threads has ever been to encourage those with a mind to experiment with their systems, based on the latest (20th/21st Century's) findings of ACTUAL Physics/science and ignore the Cargo Cult's incessant runway building (objections, convolutions, deflections and obfuscations).

                                                Happy listening!

@squared80  (et al)-

Enjoy your snake oil. Anyone who says high priced power cords or speaker wire changes the sound is lying, ignorant, or a victim of confirmation bias.

            Another rerun, since so many of you are a waste of keystrokes:

Cargo cult science is a pseudoscientific method of research that favors evidence that confirms an assumed hypothesis. In contrast with the scientific method, there is no vigorous effort to disprove or delimit the hypothesis. The term cargo cult science was first used by physicist Richard Feynman during his 1974 commencement address at the California Institute of Technology.[1]

Cargo cults are religious practices that have appeared in many traditional tribal societies in the wake of interaction with technologically advanced cultures.

     Do a bit of research and you'll learn those primitives were limited in their understanding of what they saw with their eyes, based on their prior experience, education and BIASES.

                                                A rewind:

                 It isn't that the Denyin'tologists are ignorant.

               It's they're knowing* so much, that's WRONG.

                       *heart of the Dunning-Kruger Effect

                                              OR, two:

     The Church of the Naysayer Doctrine (like every other faith-based, religious cult) has as many dopes as it does Popes.   

     Bring up anything resembling SCIENCE/PHYSICS, dated later than the 1800’s and they become apoplectic, not having the formal education to comprehend the concepts, or- possible ramifications.    THAT would be hilarious, were it not so pathetic!        

           Gimme That Old Time Religion, Gimme That Old Time Religion, etc.

        At the very first mention of something as simple as Wave Function (a BASIC tenet of Quantum Mechanics), the Cargo Cult will label you a KOOK.

        But remember: they can only view/understand you, based on their limited experience, education and BIASES.

         They have overlooked the fact that, if not for the hypotheses/theories and experimentation, regarding Quantum Mechanics: a plethora of modern conveniences, medical devices and the gear they so love, would not exist.

          Had scientists, chemists and inventors shared the doctrines of the Cargo Cult (Denyin'tologists), there would be no semiconductors, computer chips, LASERs, or Magnetic Resonance Imaging devices (MRIs).

                                         Solid State amps?

                                     OOPS (back to tubes)!

                                        Your Smart Phone?

                                        FA'GET ABOUT IT!

                                         Your car's GPS?

                                                NOPE!

    Then too: some may be willfully ignorant and just enjoy being contentious.

                        Others: obtuse, uneducated*, misinformed?

      *Typically, from what's been exhibited here: H.S. STEM, if that, would be a safe inference.

      Either way: the result, when the Cult begins its rhetoric, is a classic demo of the Dunning- Kruger Effect.

                                          But, I digress: 

       Bring up those pesky details, regarding the likes of QED, Dielectric Absorption, Poynting's theorem and possible application/effects, relative to frequency, that our musical signals are carried via photon or wave, outside the conductor and you're a KOOK?

         Again: the Cargo Cult can only understand anyone with an actual background, experience and education in Physics/QED, based on THEIR own beliefs, education, experience and biases

                                      Remember this?.

     One anecdote  that some may find interesting: their walks in the woods and how his father would encourage him to look beyond the fact that something in nature exists, into why and how.

     It saddened him that while attending college, during a visit home and one of their walks: his dad asked what he was learning in college.

     At that moment, Feynman realized: if he tried to explain what he was learning, there was no way his dad could understand.                               

                            It wasn't an insult or condescension.

                                                Just reality.

                                    Oh well: let 'em go build a runway!

                                                    references:

https://en.wikipedia.org/wiki/Applications_of_quantum_mechanics#:~:text=Examples%20include%20lasers%2C%20electron%20microscopes,systems%2C%20computer%20and%20telecommunication%20devices.

https://www.forbes.com/sites/chadorzel/2015/08/13/what-has-quantum-mechanics-ever-done-for-us/?sh=37c459944046

https://uwaterloo.ca/institute-for-quantum-computing/quantum-101/quantum-applications-today

          But: I'm a kook, because I believe in the SCIENCE, from which all that sprang?

     https://www.smithsonianmag.com/science-nature/five-practical-uses-spooky-quantum-mechanics-180953494/

           Einstein got that last one wrong (Quantum Entanglement), BUT- I still wish he'd been alive, when the Hubble Telescope proved, what he considered his, "greatest blunder" (his inability to bring symmetry to his field equation, without lambda).

  https://www.aps.org/publications/apsnews/200507/history.cfm#:~:text=Einstein's%20original%20equations%20had%20been,how%20the%20universe%20will%20end.                                            How about that?

Another example of a hypothesis/theory, with no way to EXPERIMENT/MEASURE, what you're sure must be there, in some detectable way, or another.

                                               Just for fun:

https://www.scientificamerican.com/article/6-times-quantum-physics-blew-our-minds-in-2022/

                                            Happy listening!

 

 

@mikhailark -

...selected to deliver power in environment full of RF interference and when performance may literally mean life or death. They would perform well in a less hostile conditions :-)

     No doubt: they're selected to dependably deliver DC voltages, under those conditions.

     Personally: power cables designed to conduct (perhaps: purify) AC voltages, or: ICs designed for the highly complex musical signals I enjoy, are my preference.

      When it comes to performance, in life and death situations; it's been my experience: firearms are much more dependable.       

      Out of curiosity: what brand of fighter jet cabling have you found to use in your system?

       How did you do your research, or: have you schooling in Avionics?

@mikhailark -

     I'm fairly certain; very little critical audio listening goes on in fighter planes.

     However: here's something that NASA selected, to conduct power, for their portable LASERs.

 

           https://homeaudio.analysis.plus/faq-items/letter-from-nasa/                            

 

           For anyone ACTUALLY interested in doing some study, another rewind:

        Anyone needing a rationale for experimenting with new cables in their system and/or feeling dissuaded by the Church of Denyin'tology's antiquated electrical doctrines: take heart!

        Many new electrical facts have been established in the past 100 years, that support audible differences, between various cables, fuses, etc.

         I couldn't find anything like, "Updated Electrical Theory For Idiots", but- did manage to find something resembling a cartoon, that even a child could follow.  It neither mentions AC/sinusoidal waves in wires, nor does it go into the photon propagation of electromagnetic waves.   It does, however, emphasize/demonstrate how Electrical Theory has progressed, since the 1800s:

              (https://www.youtube.com/watch?v=KGJqykotjog)

        These next two presuppose a certain amount of knowledge, in the field of modern Electrical Theory.    Click, "more" in the first link's third answer, to get its entirety.    Note how it mentions the OLD, "... commonly held misconception that the flow of electricity through a wire resembles a tube filled with ping pong balls...", to which the Denyin'tologists fervently adhere: 

https://www.quora.com/Are-photons-involved-in-all-forms-of-electricity-for-example-when-it-flows-through-wires?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa

                                            and:

        https://van.physics.illinois.edu/qa/listing.php?id=2348

        It's an established (measured) fact that an electromagnetic wave's propagation and speed, are dependent on the materials, of which the transmission line (cable) are made (ie: Dielectric Constant/permittivity).     The better (lower) the Dielectric Constant the better the flow and the longer it takes for that material to become polarized.     One reason anything that comprises an RLC circuit (ie: capacitors, cables, PC boards), takes time to, "form", or, "break/burn-in".*      

          *Something that makes the Denyin'tologists apoplectic.

   https://resources.pcb.cadence.com/blog/2019-dielectric-constant-of-pcb-substrate-materials-and-signa....

https://unlcms.unl.edu/cas/physics/tsymbal/teaching/EM-914/section5-Guided_Waves.pdf

          Even the most inane (regarding the Sciences) must admit; braiding and twisting wires eliminates/reduces EMI interference.              
          That must lend credence to various cable geometries.

          That better dielectrics enhance the propagation of electromagnetic waves (ie: your music signal), lends the same credence to choosing cables with better materials (ie: Polypropylene, Teflon, air, etc).

           Of course: anything the Church of Denyin'tology's popes can't fathom, they'll summarily dismiss.

     

         As simple a device as a fuse is: it still carries a sinusoidal signal/voltage, ALWAYS from source to load.

                                                 NOT back and forth!

         Also (as mentioned above): any fuse acts as an RLC circuit, the 'C' of which will be determined by properties of its wave guide's/ conductor's surroundings (ie: glass, air, bee's wax, ceramic, end cap materials, etc).

          Any commonly drawn wire will exhibit a chevron pattern in its crystal lattice, so: why not "directionality" and why OHNO Continuous Cast, single crystal wire sounds better, to so many?

 

                   Stated above are scientifically tested, measured and proven facts. 

                                  There is no "contest", or "dispute" involved.

 

         The OP mentions Maxwell, but: obviously they have no understanding of his theory and possible ramifications as regards the above.

  

          Anyone that feels compelled to harp on not hearing any differences, is obviously too obtuse to understand the term "variables" (as frequently mentioned) and worthy of disregard.

  

          My only goal in these threads has ever been to encourage those with a mind to experiment with their systems, based on the latest (20th/21st Century's) findings of ACTUAL Physics/science and ignore the Cargo Cult's incessant runway building (objections, convolutions, deflections and obfuscations).

 

                                                       Happy listening!

     Back in March 2022: a thread about power cords and break/burn-in was started.

     I hate to type, so: I'm going to copy/paste some of my speculations.

     That a highly complex musical signal, MIGHT affect Poynting vectors and signal speeds*, in interconnects, in a much more profound manner than a simple AC (ie: a fixed 60/50 Hz) signal, in a PC, seems likely (at least) to me, as; in EVERY formula regarding *those two, a signal's frequency (frequencies) always factors in greatly.

     Further: the above and what I'll c/p (seems to me) lends credence to how the application of a stronger, DC voltage/field, outside a dielectric (ala Synergistic MPC and Audioquest DBS systems), might stabilize those vectors and signal speeds, PERHAPS eliminating some time smear and, "burn-in". 

rodman99999 5,456 posts 03-31-2022 at 12:13am    @holmz-       Bear with me a minute, in my folly, far as a possibility on why a power cord might make a difference.       Based on some of the theories on how electricity works, simplified:       The conductor acts as a waveguide for the signal/voltage.       Within the conductor: when excited by an AC current, electrons oscillate, generating photons/electromagnetic waves that travel, always from the source, to the load.        Keep in mind: all signals (ie: music, AC) are sinusoidal  waves        Those photons/electromagnetic waves travel through and outside the dielectric, which (according to it's permittivity/Poynting vectors) will have various effects on those waves.    One of the most obvious is the dielectric's effect on the speed of the signal.       The better designers of printed circuit boards, even take the above into account, when choosing materials for their products.        I posted a link on the first page that included data on the manufacture of semiconductor chips and what was observed when materials were cryo'd, during the process.     Short version: better contact/lowered resistance between layers.           Under the scanning microscope: much smoother surfaces observed.        I would hope, by now, it's a given that various cable constructions, twists, braids, etc, can make for a cleaner transmission of signals (ie: Litz, etc).                     Just seems to me (a hypothesis): given the above (some theories and some things established/measured/proven), it's not a big stretch to believe a power cord, built of the best conductor (ie: Ohno CC silver), wrapped in a very low dielectric coefficient dielectric (ie: Teflon), cryo'd for the smoothest transfer of those photons/magnetic waves and twisted in some crazy way, might not smooth out some of perturbations/noise, from the crap an AC waveform had to go through, back to it's generator.  (run-on, much?)        I haven't tested this, actually comparing two circuits, but: it wouldn't surprise me, if a power supply that used a choke, would be less affected by a better power cord, as the former can eliminate a lot of the high freq garbage, etc, that's either created by, or makes it through all the big converting/filtering stuff, in the power supply, before.        Never thought about PCs before the good stuff hit the market, but: the Physics/QED made sense.             I tried 'em, I like 'em and the science makes my head feel better.                               Don't care WHAT it does to anyone else's!

rodman99999 5,456 posts 03-31-2022 at 12:27am         OH, and: it takes some time for the dielectric to form, take a charge, polarize, or however one chooses to define the process, when a dielectric is subjected to electromagnetic waves, which affects the Poynting vectors, measurably/predictably.                                             The lower the material’s dielectric constant: the longer that takes.                                                               PC (interconnect/etc)  burn-in?    Maybe?

                                                                                         Happy listening! 

                                                          Time for a rewind:

     "Louis Pasteur's theory of germs is ridiculous fiction."  (Pierre Pachet, Professor of Physiology at Toulouse , 1872) 

     "The abdomen, the chest, and the brain will forever be shut from the intrusion of the wise and humane surgeon,"  (Sir John Eric Ericksen, British surgeon, appointed Surgeon-Extraordinary to Queen Victoria 1873)

      "The super computer is technologically impossible.  It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." (Professor of Electrical Engineering, New York University)                        

      "There is no likelihood man can ever tap the power of the atom."  (Robert Millikan, Nobel Prize in Physics, 1923)

      "Man will never reach the moon regardless of all future scientific advances." (Dr. Lee DeForest, Father of Radio & Grandfather of Television)

      "Heavier-than-air flying machines are impossible!" (Lord Kelvin, president, Royal Society, 1895) 

      "The bomb will never go off.  I speak as an expert in explosives."  (Admiral William Leahy, re: US Atomic Bomb Project) 

     When the steam locomotive came on the scene; the best (scientific) minds proclaimed, "The human body cannot survive speeds in excess of 35MPH."

      Until recently (21st Century); and the advent of the relatively new science of Fluid Dynamics, the best (scientific) minds involved in Aerodynamics, could not fathom how a bumblebee stays aloft. 

     Often; Science has to catch up with the facts/phenomena of Nature and/or, "reality" (our universe). 

     I haven't been in school since the 60's, but- at Case Institute of Technology; the Physics Prof always emphasized what we were studying was, "Electrical THEORY."         He strongly made a point of the fact that no one had yet actually observed electrons (how they behave on the quantum level) and that only some things can really be called, "LAWS." (ie: Ohm, Kirchoff, Faraday)   

                                    PERHAPS: that's changed in recent years and I missed it?