SUT - electrical theory and practical experience


Some vinyl users use a SUT to enhance the signal of the MC cartridge so that it can be used in the MM input of a phono stage.  Although I don't understand the theory behind it, I realize that a SUT should be matched individually to a particular cartridge, depending on the internal impedance of the MC, among other things.  

Assuming an appropriately / ideally matched SUT and MC, What are the inherent advantages or disadvantages of inserting a SUT after the MC in the audio chain?  Does the SUT theoretically enhance or degrade the sound quality?  What does the SUT actually do to the sound quality? 

Thanks. 

drbond

@atmasphere  , maybe I explained in wrong way: of course that as the theory says it happens, this is not under discussion and maybe as intact said you can open the fifth thread about till you can win. Just do it.

 

R.

maybe I explained in wrong way: of course that as the theory says it happens, this is not under discussion and maybe as intact said you can open the fifth thread about till you can win.

😀 Apparently, I already did...

@rauliruegas,

You have taken what I said completely out of context.  What I was trying to say is that based on the two values you provided which was only the slew rate and the bandwidth, that by the equations the amp would become unstable at a specific voltage with one caveat (as addressed in the documents I linked) that designing the amp for peak voltage above that threshold maintains stability.  I also linked the Spectral specification where they specify all three values - slew rate, bandwidth and peak voltage.

So, I never stated that your preamp would be unstable above 1.5Mhz and now better appreciating how you interpret these items, should I ever conversate with you again, I will endeavor to be far more specific to prevent any misunderstanding. 

Peace on Earth and Good Will to All  

 

@antinn , yes often I have those kind of misunderstood and yes is my fault but not you or me losting nothing with the posts other tha your gentle time. Sorry for that.

R.

@atmasphere  , that's what you wished but JC never came to support your tale. In that regards you are very bad looser, sorry.

 

Peace.

 

R.