RCF RDNet Control 2

RDNet 4.0 User Manual Rev. A

When leaving the sources at the same places, this RDNet function also allows (with just a click) switching from the End Fire to the Gradient configuration.

In this way, it is possible to compare (in real time) the performance of the two different configurations, with obvious advantages when optimizing sound reinforcement systems. Furthermore, on the stage, you will be able to appreciate the difference in the cardioid behavior of the two different configurations.

Subwoofers in the Gradient configuration have a polar pattern comparable to that of directional microphones. This means (unlike the End Fire configuration) cancellations will be present (cardioid effect) at all frequencies sent to speakers. The Gradient configuration represents the only way to control the polar pattern at low frequencies and can provide (when properly set) useful patterns (cardioid, hyper cardioid, super cardioid, etc.) that allow the listening area to be 'shaped' at low frequencies according to your needs.

Conversely, compared to the End Fire configuration, in the Gradient configuration the subwoofer B is delayed, but in this case its phase is 180°. In the following figure, speaker behaviours can be compared (in the same places) at different frequencies (1/3 Oct.).

In the Gradient configuration, the directionality is more pronounced at all frequencies, while only at 50 Hz it can be compared to the End Fire configuration, which has a higher efficiency (1-2 dB more) than the Gradient configuration at the low frequencies 31 and 40 Hz.

56