Actusreus, (in case its not clear from Al's comments) the reason some preamps offer more loading settings, and that they are audible has to do with the fact that such preamps are not 'graceful', as Al put it, when dealing with RF energy. IOW, the RF energy affects the way those preamps sound.
All we ever found with loading (our preamps have a loading strip above the phono connectors so you can put anything there you want) is there is a slight change in the noise floor.
If you have a moving magnet cartridge, the loading can affect the sound of it directly, IOW the effects are occurring at audio frequencies.
All we ever found with loading (our preamps have a loading strip above the phono connectors so you can put anything there you want) is there is a slight change in the noise floor.
If you have a moving magnet cartridge, the loading can affect the sound of it directly, IOW the effects are occurring at audio frequencies.