Einstein Audio Phono stage preamp. Made in Germany. MSRP $4000. This is an incredible sounding phono stage. The Einstein hits above its weight, and sounds more expensive than $4000. Simple and utilitarian to use.
“..The input defaults to standard 47K Load, but with 100 Ohm Loading is for setting up most Moving Coil Cartridges as recommended. But the purpose of the Load Sockets is to experiment with different value Load. Changing this Load Value in turn changes the minute electro-mechanical damping of the cartridge and can be tuned by experimentation to obtain the best sound. Typically, some Moving Coil cartridges sound at their best with as low as 10 Ohm Load rather than the usually recommended 100 Ohm. Others at 33 Ohm etc.
Optimising Moving Magnet cartridges can go as low as 2K Ohm, and High Output Moving Coil even much lower. By using trial and error and careful listening, the potential best performance can be attained for your expensive investment, as good quality cartridges (and turntables) are not cheap. The rule is simple, the lower the Load Value, the higher the damping. Listen to the effect of increased damping and you will soon discover the sonic effect and how to arrive at the best result. Most cartridges are listened to under-damped and you can benefit from listening to optimised damping. Improve your sonic performance!