Tube Preamp and SS Amps - How?

I'd say that with SS that have >=47K impedance passives will do the best job for the money invested indeed.

Folks it is not only the impedance matching you should take into the consideration.

In general SS amps give out full power with just 1V or bellow at input and tube preamps might have an extraneous gain. Many tube preamps have can be noisy if paired with sencitive SS amps at low volume levels. The good solution is to have a low gain tube preamp with SS power amps.