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In Reply to: RE: Hagerman Piccolo Zero Headamp posted by Tre' on January 30, 2024 at 20:12:12
Sadly, I don't understand EM well enough to be authoritative. However, it is not obvious to me that Mr. Hagerman understands it any better.
At the link see the section Current-mode design improves cartridge tracking through superior damping. The picture shows better tracking when an MC is loaded into a transimpedance input due to 'simple physics' but not simple enough to actually describe :)
Follow Ups:
I have often mused that the 'unique' sound of the transimpedance approach has little to do with the nature of the amplification or the mythos surrounding the coil as a current generator and everything to do with the aggressive load improving the dynamic tracing ability of the cartridge. It is good to see Lino say the 'quiet part' out loud.
A must read for anyone interested in this is:
Audio Fallacies Exposed
Low impedance Loads for MC Cartridges
J. Peter Moncrief
International Audio Review #5
1980
dave
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