Royer R121 Vs. Bang and Olufsen BM4 Ribbon Microphone Shootout

Here's a shootout between the well known Royer R121 and lesser known Bang and Olufsen BM4 Ribbon microphones. The design of the Royer R121 was apparently inspired by the Bang and Olufsen microphones. This Bang and Olufsen BM4 ribbon microphone is for sale - go to my instagram page @colepicksvintage for more details!
Gear used:
Apollo Duo
Royer R121
Bang and Olufsen BM4
Matchless DC30 1996
Paul Cochrane Timmy
Boss Giga Delay
Thanks for watching!