RCA 44BX Ribbon Microphone for sale. If you are a vintage microphone collector, recording studio producer or broadcaster, you know the history of the RCA 44BX as the standard in broadcasting and recording studios in the 1940s, 1950s and 1960s. Elvis Presley, Frank Sinatra and every other artist of the era recorded all their hits using an RCA 44BX. The RCA 44BX is still a highly desired and sought after microphone for studio recording because it has a vintage sound and warmth to it that no current microphone comes near achieving. This particular RCA 44BX is in absolute mint, pristine condition both functionally and cosmetically. This microphone is a show piece and can be proudly displayed in a museum or any other setting, would enhance any photo of any aspiring recording artist and can be a work horse and sound incredible in your recording studio, radio or television station.