PASS + STORM Current and/or voltage output stage ?

[JLOP]

Dear all

I am quite a newbie here (just a wonderful ZEN amp to feed my Tannoy GRF Rectangulars with HPD 315A coaxials speakers).
I read a review of the STORMAUDIO R-170 Revelation in a french magazine (4 900 €...).
This amp can apparently be continualy adjusted from current to voltage output stage, which says the reviewer allows a perfect match with the loudspeakers. They say that the difference in results are huge with this tuning

I would like few clarifications from you experts :
- is it really a feature or just marketing hype
- if it is a good idea, would it be possible to make some evolution of the PASS designs to test it "live", or maybe consider it in the future
- if not, how to determine if your speakers are more current or voltage oriented

Thanks in advance​

 

[JLOP]

it is a french audio company
Description in french :

Stormaudio > technologie StormFocus

or english (not exhaustive, see schematic in french)
StormAudio Technology StormFocus

Thanks for your feedbacks

Jean-Louis

 

[Nelson Pass]

The idea is valid. It is unproven that high damping factor results in the best
sonic performance. Variable output impedance has been around for a long
time. You can check Rod Elliot's pages for a suitable circuit.

Lacking that, of course you can put a resistor in series with the speaker
and see what you get.

😎

 

[JLOP]

Thank you very much Mr Pass. Dare I ask if anything on this kind in the kitchen ?