Hi Werner and welcome to Phoenix.
Once recorded a That's CD-MH at type IV position on an AL-300.
It was possible to calibrate it at type II position but doesn't sounded good, so I tried type IV, calibration worked by reducing the bias close to minimum and that('s) sounded better.
I think rec eq...
Big French cities are banning old cars due to air pollution.
But old cars in big French cities are a tiny drop in a ocean compared to air traffic, sea traffic and also industry.