The gold plated 4040 uses the latest magnet technology for an exceptionally flat frequency response from 30Hz - 20kHz. The figure of 8 polar response remains constant in horizontal and vertical planes, giving a smooth sonic quality. The ribbon/magnet assembly has its own shock mounts separating it from the main body of the microphone.
The shape of the bi-directional (figure of eight) polar response is maintained substantially constant both in the horizontal and vertical planes, giving a natural smooth sonic quality textured response to sound. There is also no discernible stray magnetic field, making it very easy to mount head to head in a "Blumlein" (crossed figure-of-eights) stereo configuration.