Good day I would like to buy a beamer where I can connect 2 headphones. As the projector is mainly used in the terrace, we cannot install a soundbar. The sources are a Tv Box (Z4+), Apple TV and Mac Book. All are usually connected via HDMI cable. When I connect ordinary headphones with cables via 3.5 mm jack to the audio out output, the sound output sounds terrible. Probably because it is mono. I finally tried it with wireless speakers. It definitely sounds better, but I think I only get mono audio there too. What options do I have to get minimal stereo or Dolby Soround. My Z4+ has a Tos optical cable. Would I need to buy one of those adapters that has multiple HDMI ports and tos optical output? The headphones I have chosen are Panasonic RP Wf 830We -K. Or are the headphones also decisive? Merci