SUT - electrical theory and practical experience

Also, in a voltage driven conventional stage, the input load R can be thought of as the simplest form of passive current to voltage converter.

Dear @holmz  : "" The voltage input design produced has very precise gain, extremely precise RIAA compliance and unmeasurably low distortion. ""

That is the critical and must important issue/characteristic for me about current/voltage subject.

That statement is not only " imagination " of Palmer but he took the comparison measures and as always he did it in REAL TIME thank's that he have several of the computer AD modeling/simulation along the ones he developed and I know he did that kind of job and statement because in a very hot discussion here ( 3-4 years ago ) he showed inmediatly the measurements, one after the other.

Audiophiles can like whatever they like but with UNMEASURABLE low distortions: who cares about, ceratinly not me.

R.

@intactaudio  : Technics THD is 0.001% and noise level below -95db.

.

"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"? 

It does seem from the descriptions supplied from certain individuals who have taken the time to check for an appropriately / ideally matched SUT > MC, set up as an optimised interface, that there are attractive presentations that can be discovered, and in comparisons, to other interfaces using a different SUT or Cart', that are again an appropriately / ideally matched SUT > Cart', that there are discoveries made that are not so attractive.

Being Wed to one type of Phonostage and its MC Input will not allow for the discovery to be made, that the Cart' in use is able to present in manner that has increased appeal and attraction.

Through using a method that restricts the experiences to be had with the Cart', where it is to be used with limitations to the interfaces that can be produced, is an OK method, but certainly a method not embraced by all.

To add ancillaries to work in conjunction with a Cart' and Phon', the method when chosen can prove be quite valuable as well as limiting, the experimentation required to discover the ideal interface and optimisation is a process and requires time to finalise the ideal set up. 

Again, as a method it is OK and not embraced by all. Where it has merit, is that the permutations that can be put in place are certainly expansive in the introducing of new discoveries of how the Cart' can present.     

Dear @o_holter  : I think your PS is high gain active unit then why a SUT?

R.