Amp preamp impedance matching...can anyone explain?


Hi, I currently have vintage tube gear, but want to try a SS amp with my tube preamp, and may try a SS preamp with my tube amps. I have noted there is an impedance matching issue, but do not understand it. Can anybody provide a quick summary?
Thanks
Jim
river251

Showing 1 response by dracule1

I have a tube DAC that uses a single 6SN7 tube with 1 microfarad coupling caps. I was told it has 8 kohm output impedance. I wanted to get this integrated SS amp but the input impedance is 10 kohm. So this is a horrible match, so I stayed away. My tube amp with passive stepped attenuator at the input of the amp has 100 kohm impedance. This DAC/amp combo sounds dynamic as hell with deep bass extension. But I really wanted that SS integrated.