BAT Rex and Lamm 1.2 with WP8 synergy

According to BAT's website the input impedance of the amp should be no lower than 3000 ohms. You shouldn't have any problems with 41000 ohms.

Why not just ask Victor Khomenko of BAT(he's the VK in their product names), he posts regularly on Audio Asylum in the Tubes and Amp/Preampss forums. He'll give a straight answer on this. Here is latest post two days ago

hooked up bat rex to lamm 1.2 absolutely perfect combo as far as audioquality and musicality is concerned. rex is one of the quietist preamp I have ever had.
thanks for all the responses

I am also using a BAT Rex, but with solid state amplifiers. People say you cannot get tube-like sound with solid state amps, but I beg to differ. Perhaps it is because of the overbuilt power supply on the Rex. The Rex adds the texture, depth, and note decay without overdoing it. The build quality is also a benchmark for tube equipment. I have not added aftermarket powercords yet, but I bet there will be much more clarity, transparency, and bass impact.