I was able to connect speakers to the unit and listen to the radio. I have a video included in the listing showing its functionality. I’m not an audio expert, so the unit may need to be serviced by a professional. I will say, from what I can tell, the audio knob is very sensitive and gets incredibly loud quickly. Be mindful not to damage your speakers when testing.
Everything worked as it should. It needed a thorough cleaning upon receipt, but cleaned up very well. I am proud to add this receiver to my vintage audio collection.