@lewm : " cartridge was reviewed and the reviewer said performs just fine at 100 ohms that's is way out of your 10X rule. "
" lose some HF bandwidth.." how much.Example?
Normally SPL goes a little lower.
R.
Question about Cartridge Loading
Hello All,
Out of all the different audio components, seems like the phono amp is still something that I am trying to understand.
I have read much about it here on the forums, google and YouTube.
But I haven’t really come across a simple answer as to how different resistance (ohm settings) affects the sound and that is what I am trying to get to and understand.
I have very basic electrical knowledge but understand that the different cartridge loading values: 100, 200, 300, 47K, etc are different values of resistance.
By the way, I understand Gain. Higher the Gain, the louder it will be (ever so slightly).
Also, I am not worried about capacitance settings since I use a MC Cart.
So, in the most simplest terms, what I want to understand is if for example, if a 100 ohm setting is chosen on a phone preamp, does that mean the audio will be more open because there is less resistance compared to say a 600 ohm setting?
Would 47K damp the sound even more because it is a higher resistance value compared to 100 ohm.
In my mind, resistance means to push back or down, so I would think a lower ohm setting mean that audio output would sound more free/open not as veiled, perhaps more bass.
Am I thinking about this the correct way?
I know it’s probably not as simple as that.
Currently, I can’t seem to detect much different in the different load values with my phono pre-amp.
Anyways, any feedback would be welcomed.
As I said, I am looking for simple answers like: lower ohm setting equals more open sound and higher ohm setting equals more veiled sound (I’m sure I am totally wrong about that as there are many variables involved).
Thanks
Jay
@lewm : " cartridge was reviewed and the reviewer said performs just fine at 100 ohms that's is way out of your 10X rule. "
" lose some HF bandwidth.." how much.Example?
Normally SPL goes a little lower. R.
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@lewm : You don't posted then that could means you do not make your work yet changing inductance values to looks its critical issue ( as @imhififan posted. ). Here we go with examples using HC and know the cartridge bandwindth: L 0.5mH and R 100 ohms : 31.8 khz L 0.4mH same R: 39.8 khz L 0.1mH same R: 159.2 other example changing the R:
L 0.5mH R 47k : 14.9 khz. From 32 khz goes down 15 khz.
That calculator is a very good tool. Don't you think?
R.
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