Hi,
I just saw a scratched and dirty BeoMaster 1900, with two BeoVox S30 loudspeakers in a charity shop at £24...
It was painful, I have the same BeoMaster at home and I love it. It had a note that was labelling it as a "radio," and that only the second pair of loudspeaker output is working. I don't know what to do, to "rescue" it or not.