Hi,
I was looking into a tube preamp for the Red Wine 30.2 integrated and came across an older Anthem pre1 that has the following output impedance:
OUTPUT IMPEDANCE: 390 ohms main outputs, Phono
520 ohms to tape outputs, Recommended load 50K-100K
ohms and 100pF (20K ohms minimum, 1000pF maximum)
As the 30.2 is 20K would this be a bad match? I can see that the power amp version would be better, but I'm not sure I can go that route right now.