well say 0.5mV into 100Ohms. Average might be 15dB below that. Or a fraction of a gnat fart.
Hi,
Maybe some should read more Hi-Fi mags to learn the vocabulary used by those journalists ? 😀 (Tongue firmly in cheek)
A 500Hz boost just by changing the direction of a resistor ?
Man, you're such a "resistor". 😱
Cheers, 😉
Maybe some should read more Hi-Fi mags to learn the vocabulary used by those journalists ? 😀 (Tongue firmly in cheek)
A 500Hz boost just by changing the direction of a resistor ?
Man, you're such a "resistor". 😱
Cheers, 😉
While those are supposed to be pretty standard therms in audio descrition they can be misleading sometimes... I'll try to explain:
A tight bass is thinner, drier and more impulsive, somewhat simplified in harmonic content.
A round bass is fatter, rich in harmonics, somewhat resonant, sometimes it can give the illusion of more bass content.
Is it any better?
come on. No instrument specified, no frequency range, no effect other than a suggestion that there are more harmonics (as in distortion) when the wrong way round. All from one resistor? I have great difficulty believing that.
Excess noise is well know for decades, its having a preference for current flow direction is not. No need to obfuscate by talking about energy, it all works out.
Max - It's also proportional to V(I) so at 10's of micro-volts (100's of nA in 100 Ohms) the effect is microscopic.
Here is the LIGO paper I have posted numerous times. https://dcc-dev.ligo.org/public/0002/T0900200/001/current_noise.pdf
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Built the JCan project ( Johnson Resistor Noise Measurements ) a while back and it really shows the noise differences between resistors. As importantly, it shows how horrendous carbon track volume controls can be. That said, there are very few places in an audio chain where it makes an audible difference.
Hi,
A MC cartridge termination resistor being such a place IME.
Generally, a single resistor of a particular kind is hardly audible.
Having a say two dozen of the same ones should be audible though.
It tends to characterize the sound of an amp/preamp quite a bit. Much like you'd recognize the voice of a person in a room it does the same for the audio gear. It has now a "timbre" all of it's own.
A mistake many manufacturers make for convenience/economics reasons.
Cheers, 😉
A MC cartridge termination resistor being such a place IME.
Generally, a single resistor of a particular kind is hardly audible.
Having a say two dozen of the same ones should be audible though.
It tends to characterize the sound of an amp/preamp quite a bit. Much like you'd recognize the voice of a person in a room it does the same for the audio gear. It has now a "timbre" all of it's own.
A mistake many manufacturers make for convenience/economics reasons.
Cheers, 😉
It was not what I asked for... forget resitors for now.
In general, is there a measurement I can do to discern between tight and loose bass?
BTW the best sounding direction is the one where bass sound softer/rounder.
Although in my youth I did buy holcos for my MC terminations I can't buy it makes a difference other than KNOWING you have a couple of $10 vishays there.
So its better with more harmonics? Which means more distortion.
Start by listing the music you use for this test and the instrument you focus on. Then at least we can try and work out which bit of the frequency range you think is changing. Then we can work out the likelyhood of something 140dB down having any effect when your desoldering and resoldering of the component will have caused more variation.
Actually Scott we are almost in agreement again! The LIGO paper very thoroughly covers excess noise but does not look for directionality. It does show some of the correlation between what are low noise redistors are also the lower distortion types.
As to excess noise scalability that actually leads to good resistors have lower noise and that should show up when used as a termination resistor for phono use.
So I think the only issue is the unexamined one of excess noise being directional. I know you find the concept not very promising. But I will try it to see for sure.
Hi,
Maybe it's time for people to accept that not everyone has a "differential" type of hearing ?
I find Holco's highly coloured compared to Vishay bulk foil BTW.
Price has never impressed me and neither do you need the ultra precise ohmic value the S2 range offers but they do sound far more like "no resistor at all".
And while I'm at it, whoever suggested tube rolling shouldn't make for any audible difference if and when the circuit is designed right? I'm still laughing.
Cheers, 😉
Maybe it's time for people to accept that not everyone has a "differential" type of hearing ?
I find Holco's highly coloured compared to Vishay bulk foil BTW.
Price has never impressed me and neither do you need the ultra precise ohmic value the S2 range offers but they do sound far more like "no resistor at all".
And while I'm at it, whoever suggested tube rolling shouldn't make for any audible difference if and when the circuit is designed right? I'm still laughing.
Cheers, 😉
Frequency response. A few minutes playing with parametric equalizers is very enlightening.
Whilst I love vinyl. The noise floor is around -70dB, so the difference between two quality resistors will be well and truly buried. That I cannot get my head around. The logical explanation is that you can't hear the effect of changing the termination resistor for another one of the same value unless its badly flawed. Very happy to be proved wrong on this.
Hi Dario,
Think about medical electronics for a moment. It is necessary for extremely low noise amplifiers to be used to pick up signals from an MRI machine. If resistors had an orientation, it would be extremely well documented and have become standard practice to orient the components properly. It isn't documented because what you are talking about is not true. Simple. You can be convinced to hear things that are not there only too easily.
Before you go there, let me just say that we measure and listen. We do not listen to music through our instruments as many untrained folks would like to say.
-Chris
Its probably a collection of measurements that would show very clearly what you are talking about. But first, you would have to define what each sound was to you. After that it would be a simple matter to call the shots. Mind you, we would be talking about a microphone pickup to include the characteristics of the reproducer used.
Think about medical electronics for a moment. It is necessary for extremely low noise amplifiers to be used to pick up signals from an MRI machine. If resistors had an orientation, it would be extremely well documented and have become standard practice to orient the components properly. It isn't documented because what you are talking about is not true. Simple. You can be convinced to hear things that are not there only too easily.
Before you go there, let me just say that we measure and listen. We do not listen to music through our instruments as many untrained folks would like to say.
-Chris
Hi,
I am very much aware of that and can't offer you a logical explanation other than suggesting that the same resistors (circuit's voltages etc. allowing) have a similar effect. I.e. less colouration, more transparency etc.
The only "proof" I can bring to the table is that the "effect" is there time and time again and that not just in my "system" but in hundreds of them.
Honestly, I wish I could explain and no, it's not the fresh solder effect either.
Best, 😉
I am very much aware of that and can't offer you a logical explanation other than suggesting that the same resistors (circuit's voltages etc. allowing) have a similar effect. I.e. less colouration, more transparency etc.
The only "proof" I can bring to the table is that the "effect" is there time and time again and that not just in my "system" but in hundreds of them.
Honestly, I wish I could explain and no, it's not the fresh solder effect either.
Best, 😉
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