I got some posts, but I wont say what they cost 😉 Actually, they were less than what I budgeted for them. Im not doing a whole build just "upgrading". One of the plastic spinners got busted off, and I hot glued my speaker wire in place for a quick fix, being xmas day and all. *disaster waiting to happen*.
Heres some more insightful thoughts from both sides of the fence http://www.diyaudio.com/forums/part...-vs-copper-does-really-makes-differences.html
Heres some more insightful thoughts from both sides of the fence http://www.diyaudio.com/forums/part...-vs-copper-does-really-makes-differences.html
Is there now just a fence between truth and error? I thought it was more like a yawning great chasm.
Whos decides whats truth and error eeeeeh? Yea I made it through less than a page on that one. Up until someone said something or other about oxidation being, what beneficial. None of its that complicated I just wanted some bloody copper posts. The stainless was free, everything balances itself out you see.
In science and engineering the Universe decides. In other fields of human endeavour we may get to decide. Audio engineering is a branch of engineering - the clue is in the name.SS4927 said:
I wish!
In those fields humans decide, based on their perceptions. And, the humans can make some serious perceptual blunders.
For example Newton and many of his cohorts believed that kinetic energy was a linear function of speed. Now we know it goes up with the square of the speed. But there was quite a bit of debate in the day and the scientific establishment was aggressive and damaging to people who asserted the actual truth.
The counterpoint is that in the days of Newton people had very little practical experience with things that were going fast enough for the difference between proportional and squared to be that obvious or matter that much.
Today there are many things like inverse feedback that a tiny minority in audio see as a problem, but that we have over a century of practical experience with, and is generally accepted.
The Audio Engineering Society sees audio as being both an art and a science. I think this fits well with the fact that while many things are understood well, others such as room acoustics are still evolving.
Agreed - it is pretty straight forward if you don't try to make a religion out of it.
the conductivity difference isn't an issue when the binding post cross section is many more than 3x that of the wire and a lot shorter too
Now your saying a metals conductivity can not be measured, at least that what it sounds like.
Im not here to bicker, I thought I made that part clear, I just wanted binders. I know what my ears appreciate and feel no strong urge in my heart to debate it, really.
Im not here to bicker, I thought I made that part clear, I just wanted binders. I know what my ears appreciate and feel no strong urge in my heart to debate it, really.
So what? Last time I looked a binding post was a lot shorter and a lot fatter than any reasonable speaker cable so as long as it is a good conductor a binding post can be made of any metal - the issues are to do with mechanical strength and oxidation, not conductivity. Or does a short fat piece of poorer conductor make the electrons slow down and go smeary?SS4927 said:
It's all good that you want all-Cu because it makes you happy. Ultimately, that's the pursuit of our spending in this field, no? The glut of nerds that are pushing you towards brass are coming at this from a performance and utilitarian perspective. The biggest potential source of resistance in a binding post is the interface of the wire to the post, not the bulk conductivity of the post.
And, no, you will not be able to tell an all-Cu versus a Au-plated brass binding post in a blinded test. As long as you understand this is for your eyeballs and making your brain happy, that's fine. Do keep on top of both your wire and post, though as the various forms of copper oxide are semiconductors and fairly wide bandgap.
It's more important electrically to keep the post and wire free of oxidation and more important mechanically to not be a gummy/soft metal. Both of which point towards brass as a better material for the job. Plus, if you think about it, there's probably more copper atoms in a brass post than there is in an equivalent length of 12 gauge of copper wire. 😀
No, I most certainly did NOT say it could not be measured. My challenge was for you to try and measure it (the tester leads themselves will be significantly more resistive, so you need a lab-grade tester with a Kelvin connection to do that). As pointed out by myself and others here, it's a non-issue, the resistance of the speaker wire alone will totally swamp the tiny resistance of the posts, that's all. In my opinion, it makes no sense to spend big money on things that don't make any ACTUAL difference in the final results.
Mike
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