thanks cddb,
Engineering and Physics ARE essentially the same... the difference lies in who we hand papers too... and who kicks are butts regarding what we put on the papers. Physicists get their butts kicked by peers... engineers, by bosses and customers. I don't which is better. Bosses and customers can be meaner and hit you in the wallet; but they're much more easily dismissed as idiots... peers are a different story.
ON TOPIC:
It is entirely plausible that a power cord could affect a system. If this is indeed the case, the fault, and therefore the cure, likely lies elsewhere.
A power cord should be designed for a prudently small loss. Measures beyond that are simply ridiculous.
The power supply in a system should be built well enough to deal with whatever crap it's handed by the mains... where filtering and other "dynamic killers" are useful gadgets.
"Dynamic headroom/reserve" comes from big caps with low ESR/ESL, AND dynamic accuracy comes from well designed amps with high PSRR's.
Reducing the aggregate impedance between your amp and a generator 100 miles away by some 0.000000001% will do NOTHING for your sound. It will make the polished thief that got your $500 for a power cord a happy guy though.
🙂
Engineering and Physics ARE essentially the same... the difference lies in who we hand papers too... and who kicks are butts regarding what we put on the papers. Physicists get their butts kicked by peers... engineers, by bosses and customers. I don't which is better. Bosses and customers can be meaner and hit you in the wallet; but they're much more easily dismissed as idiots... peers are a different story.
ON TOPIC:
It is entirely plausible that a power cord could affect a system. If this is indeed the case, the fault, and therefore the cure, likely lies elsewhere.
A power cord should be designed for a prudently small loss. Measures beyond that are simply ridiculous.
The power supply in a system should be built well enough to deal with whatever crap it's handed by the mains... where filtering and other "dynamic killers" are useful gadgets.
"Dynamic headroom/reserve" comes from big caps with low ESR/ESL, AND dynamic accuracy comes from well designed amps with high PSRR's.
Reducing the aggregate impedance between your amp and a generator 100 miles away by some 0.000000001% will do NOTHING for your sound. It will make the polished thief that got your $500 for a power cord a happy guy though.
🙂
dynamics in pop music these days? have you watched good meters stay at zero and maybee drop a couple of db once in awhile or seen a wave form with a table top envelope? I generalize but 90% of pop is like this The last U2 record is one of thge worst examples. It so compressed its distotrted. The 44.1k audio on the video sounds better than the CD
poobah said:
You should word your posts more carefully. You are effectively calling people liars now. If not impedance, then why is it I can hear, for example, the effect of changing all power cable fuses for 6mm solid copper bars?
Why does a low impedance power cord cost $500? I've never paid more than ~$50 and have some nice power cables.
Simon
quote:
Originally posted by poobah
Reducing the aggregate impedance between your amp and a generator 100 miles away by some 0.000000001% will do NOTHING for your sound. It will make the polished thief that got your $500 for a power cord a happy guy though.
quote
SIMONTY
You should word your posts more carefully. You are effectively calling people liars now. If not impedance, then why is it I can hear, for example, the effect of changing all power cable fuses for 6mm solid co
How can stating an opinion based in scientific fact be calling someone a liar?
I originally said to the distribution xfrmer (transformer) on your street 25-200 meters but yes even loads pre xfrmer can effect your power. Your expensive popwer cord is like wiring a microphone with 20ft of lamp cord and adding 2 inches of high end mic cable to to the end. Useless. Why is this so hard to understand
without reason there is only superstition cbdb
Originally posted by poobah
Reducing the aggregate impedance between your amp and a generator 100 miles away by some 0.000000001% will do NOTHING for your sound. It will make the polished thief that got your $500 for a power cord a happy guy though.
quote
SIMONTY
You should word your posts more carefully. You are effectively calling people liars now. If not impedance, then why is it I can hear, for example, the effect of changing all power cable fuses for 6mm solid co
How can stating an opinion based in scientific fact be calling someone a liar?
I originally said to the distribution xfrmer (transformer) on your street 25-200 meters but yes even loads pre xfrmer can effect your power. Your expensive popwer cord is like wiring a microphone with 20ft of lamp cord and adding 2 inches of high end mic cable to to the end. Useless. Why is this so hard to understand
without reason there is only superstition cbdb
I can't control what people believe... if they are faithfully reporting their beliefs... I can't call them a liar either.
You should read my posts more carefully... if a power cord can truly make a difference, and a fuse is a much more likely culprit, then, the power supply and amplifier is really at fault.
🙂
You should read my posts more carefully... if a power cord can truly make a difference, and a fuse is a much more likely culprit, then, the power supply and amplifier is really at fault.
🙂
You can't simply tell people what they can and can't hear, that's just bad manners.
I wouldn't tell someone they can't hear a bybee quantum purifier or a slightly modified CD player from a standard one, or a C# from an A. Only the listener can know what he hears.
Simon
edit: I'm not trying to start a flame war, so I'll gladly unsubscribe myself from this thread, unless I can think of something productive to say 🙂
I wouldn't tell someone they can't hear a bybee quantum purifier or a slightly modified CD player from a standard one, or a C# from an A. Only the listener can know what he hears.
Simon
edit: I'm not trying to start a flame war, so I'll gladly unsubscribe myself from this thread, unless I can think of something productive to say 🙂
I think this explains things sufficiently...
BTW... I didn't tell anyone what to believe... or what they hear.
if i had a nickel for every time Ive heard someone say i thought i heard ..... Ive worked in recording studios for 25 years including mixing and if i have learned anythig its that its easy to fool the brain when it comes to audio (actualy when it comes to all the senses). Even people who mix every day, that is people whos job it is to hear. Fooling the brain is actualy the job of everyone who works on audio for video (movie sound). Its the "magic of Hollywood". Dont believe me? Look into the psyhcology!
cbdb said:
Excellent.
What parametrics do you use to place an image in a soundfield?
And what target geometry for the end use system? You don't use the studio monitors, do you??
What is the end use system wavefront design? Spherical, cylindrical, or planar?
Do you modify the parametrics based on human frequency response and localization capabilities?
Or do you simply turn a knob?? A pan knob..
Inquiring minds wanna know...
ps..an engineer will be able to produce the analytical equations which define localization, and be able to design equipment which is capable of accurate image placement...
An engineer will also know when to justify the expense the correct equipment would cost. It's always a tradeoff.
John
You certainly can. You just can't tell people what they think they can or can't hear.SimontY said:
cbdb said:
It's alive and well here. On every forum, in every thread. Eventually you will slip and be assimilated. You will find yourself feeling ashamed of your cheap power cords and interconnects.
You will start to believe that the film capacitors and resistors and even the connecting wire within your speaker may be backwards.
😎
Hearing and not hearing,is the same as seeing and not seeing,smelling and not smelling.......You can either hear or not,see or not,smell or not.Is this so hard to understand?
A cable costs $500 or $50 for similar reasons why a car costs $20000 or $2000.Is this so hard to understand?
A cable costs $500 or $50 for similar reasons why a car costs $20000 or $2000.Is this so hard to understand?
Yes, it is. The human mind is a complicated thing and often perceives things that aren't there. Take that variable out of the equation by doing controlled listening and then you can claim that conventional engineering is ignoring a problem. Assert an unlikely claim with the evidence being, "Because I say so!" and you should expect to be ignored by serious practitioners.
Until then, I'd just suggest that people use common sense; appropriate size wire, reasonable line filtering, and competent power supply design. $500 power cords are fashion statements for people with too much money.
Until then, I'd just suggest that people use common sense; appropriate size wire, reasonable line filtering, and competent power supply design. $500 power cords are fashion statements for people with too much money.
cbdb,because one's job is "to hear" it does not necessarily mean that they hear better than someone who's job is not to hear.
SY,was that an answer to my question?I think it is you who just said "because I say so".Is it really so hard for you to understand why a car costs $20000 and another one $2000?
Isn't it possible that my hearing is better than yours?Time I guess to see things in another very simple light.
Isn't it possible that my hearing is better than yours?Time I guess to see things in another very simple light.
.
The basic function of a car it to transport you from here to there.
The difference in price will have an impact on your comfort level, personal pride, sense of self worth, exhibit your ability to afford this luxury and as an extension demonstrate to the rest of the world that you are a superior person.
The basic function of a car it to transport you from here to there.
The difference in price will have an impact on your comfort level, personal pride, sense of self worth, exhibit your ability to afford this luxury and as an extension demonstrate to the rest of the world that you are a superior person.
Does that mean that if for example you own a $5000 car,you want to show to people who have a $1500 car that you are a superior person?
- Status
- Not open for further replies.