Cartridge incompatibility, Soundsmith and Luxman


I have a Soundsmith Zephyr MIMC Star cartridge that sound really amazing, but I just changed to a Luxman L-590AXII and the gain and loading is fixed.

Output/loading for cartridge: 0.4mV, recommended load resistance 470 ohm

Input sensitivity/impedence for the amp: 0.3mV, 100 ohm

 

The gain should be ok, but the load is way off and you can clearly hear it. The highs are rolled off and I need to crank up the volume to be acceptable level.

 

So here's the question... what cartridge would work in this setup? Would love to keep the Soundsmith, but I'm not going to add SUT with additional cables and all that complexity.

128x128audiojan

@audiojan , the finest 1% metal film 47K resistor costs maybe 75 cents. If you lived anywhere near me I would be happy to do it for you. I live in NH. Cost you a bottle of scotch. Lagavulin please.

Lewm would do it for you also but, he would charge you 2 bottles. One for before and one for after the job🤪

i am a buyer for the used Hagerman! lines are forming left and right…..

PL was astute in asking for a schematic BEFORE the Scotch…it may matter what comes just after that oh so easy to change input R..

And Mijo, where are you buying laser trimmed Vishay R for $.75 ? 

The finest Vishay nude resistor costs more like $13. Caddock TF030 costs about $7 each and is nearly as good, maybe indistinguishable. For phono loading, quality counts but the watt requirement is tiny. The change in load resistance is compatible with any MC cartridge. There are no cartridges that “require” 100 ohms. So there’s no need to determine in advance whether one likes the Zephyr. And of course the change is not unreversable anyway, if one ever felt the need.

Audiogon, the land of “ nearly as good “ but with a penchant for Lagavulin. I prefer Talisker, small sliver of ice….

What is right after that input R ? Some dude who invented the cartridge in question seemed…interested in that…