There is just one conductor current inside the magnetic hole of these microphones, hence the output produced by ribbon microphones is fairly lower. Ribbon mics are bidirectional. What this means is they only get audio waves that originate from the front and back. Microphones can be considered reverse loudspeakers. https://jaidenjnptu.wikitidings.com/4563539/not_known_factual_statements_about_great_singers