Do you have a question about the Monacor SA-50 and is the answer not in the manual?
6.3mm jack for headphones, which mutes the speakers when connected.
3.5mm jack for connecting line signal or headphone output from a device.
Selects signal input and sensitivity (HI IMP/LO IMP).
Warning about dangerous mains voltage and risk of electric shock.
Instructions for indoor use, avoiding liquids, heat, and ensuring ventilation.
Steps to take if the unit or cable is damaged or malfunctions.
Warning against high volume levels that can damage hearing.