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a more innovative way of adding impedance without loss in SQ? - Page 3

post #31 of 42
6/4/11 at 3:44pm

dp


 


Edited by High_Q - 6/4/11 at 3:45pm
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post #32 of 42
6/4/11 at 3:45pm

What is at the input is output of the source.  I mean, what are you doing with  the 75 or 100 ohm resistor as an impedance adaptor for ER4S?  It is in the 3.5mm output, which is essentially the same as L and R RCA combined output.  The signal will not be identical to signal without the adaptor, it will of course alter it, FR will be altered.  When you get the RMAA, play around with it with different inputs and outputs and see how it effect the signal.  Although, looking at it in time domain with tone signal input would be useful.
 

Quote:
Originally Posted by monoethylene View Post





Right now I am astonished because with that you will amplify an already altered signal, no?



 


Edited by High_Q - 6/4/11 at 3:52pm
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post #33 of 42
6/4/11 at 3:50pm
Quote:
Originally Posted by High_Q View Post

I mean, what are you doing with  the 75 or 100 ohm resistor as an impedance adaptor for ER4S?  It is in the 3.5mm input, which is essentially the same as L and R RCA combined input.  The signal will not be identical to signal without the adaptor, it will of course alter it, FR will be altered.
 



 


Exactly the same as you described, I will change the FR of the headphone with a resistor in series in an easy way but when I change the input impedance of my amp, my source will be in trouble maybe, depends on the value I change it of course..

 

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post #34 of 42
6/4/11 at 3:53pm

dp


Edited by High_Q - 6/4/11 at 3:54pm
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post #35 of 42
6/4/11 at 3:54pm

I mean't output.
 

Originally Posted by High_Q View Post

I mean, what are you doing with  the 75 or 100 ohm resistor as an impedance adaptor for ER4S?  It is in the 3.5mm input, which is essentially the same as L and R RCA combined input.  The signal will not be identical to signal without the adaptor, it will of course alter it, FR will be altered.
 

 


 


Edited by High_Q - 6/4/11 at 3:56pm
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post #36 of 42
6/4/11 at 3:57pm

Excuse me sir, you ve  said that you want to change the input impedance of your amp? Or am I completely crazy??

 

btw It is really funny how you change the posts :)

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post #37 of 42
6/4/11 at 4:02pm

I adaptor is at the output so input wouldn't make sense would it?  Yup, I change my posts because I type quicker don't edit it before I submit, lazy I know.tongue.gif
 

Quote:
Originally Posted by monoethylene View Post

Excuse me sir, you ve  said that you want to change the input impedance of your amp? Or am I completely crazy??

 

btw It is really funny how you change the posts :)



 

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post #38 of 42
6/4/11 at 4:11pm

you ve said you are going to change the input impedance of the amp..at least was this my question..

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post #39 of 42
6/4/11 at 4:15pm

You can change the output impedance with a buffer to lower the output impedance.  If you change the input impedance, it will alter the gain.
 

Quote:
Originally Posted by monoethylene View Post

you ve said you are going to change the input impedance of the amp..at least was this my question..



 


Edited by High_Q - 6/4/11 at 4:17pm
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post #40 of 42
6/4/11 at 4:25pm
Quote:
Originally Posted by High_Q View Post

You can change the output impedance with a buffer to lower the output impedance of the amp.  If you change the input impedance of the headphone, it will alter the gain.
 



 



merci

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post #41 of 42
6/4/11 at 4:36pm


Look back on the same post, it is edited. I was a EE major not English major, it shows how much I care a about grammar, although I can write paper if I have to, but it's a chore.   I suggest you read up on all this stuff, it's all over the net, instead of asking questions(you're not going to get much out of it), it's not going to help you the least.  Do you have any background in circuits?  What is your Phd in?

Quote:

Originally Posted by monoethylene View Post

 

merci



 

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post #42 of 42
6/4/11 at 4:50pm
Quote:
Originally Posted by High_Q View Post


Look back on the same post, it is edited. I was a EE major not English major, it shows how much I care a about grammar, although I can write paper if I have to, but it's a chore.   I suggest you read up on all this stuff, it's all over the net, instead of asking questions(you're not going to get much out of it), it's not going to help you the least.  Do you have any background in circuits?  What is your Phd in?



 

 

What is edited?

Me too I write papers if I have to. Maybe we will see this year in Denver at the conference..

I will ask every time if sth is unclear..

Background in which way? I ve studied it..

Mechanical engineering..
 

 

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