The Royer SF-24 is a stereo active ribbon microphone. It is the powered version of the Royer Labs SF-12 - combining the brilliant stereo image and transient response of the SF-12 microphones, with Royer Labs’ exclusive powering system. The SF-24 has a 14dB better sensitivity as a result, making it on par with condenser microphones in terms of output. This opens up many more options for suitable microphone pre-amps. The Royer SF-24 has 2 x ribbon microphones that are aligned in a Blumlein stereo miking configuration.