FiRPHASE, RCF’s patented 0° linear-phase response technology, ensures that all active RCF speakers have perfect phase alignment when paired with other RCF speakers and subwoofers. This allows for the majority of RCF ‘satellite & sub’ combinations to provide perfect time-coherence simply by positioning the satellite loudspeaker on top of the subwoofer, with no additional time-alignment required.
Due to certain physical limitations, some use cases may require small corrections using delay in order achieve maximum performance from RCF active systems. Many RCF speakers, such as the HDL and TT+ Series, include on-board or RDNet time delay capability. However, for the few systems without built-in delay, an external delay device is required.
RCF have created easily accessible Pre-Alignment Delay guides for each of their active speaker models, providing the exact time delay values needed for perfect alignment with RCF subwoofers. These guides are available in the Downloads section of each Product page on the RCF website.
RCF have also released the delay values for some discontinued RCF speaker models to help maintain compatibility with current offerings.
To implement the recommended delay settings:
- Enter the pre-alignment values into your RCF speaker’s rear panel delay controls (if available). Alternatively, program the delays into the RDNet speaker management software or configure the delays on your external delay device.
- For suspended speakers, the delay values need adjusting to compensate for the physical offset distance between the speaker and subwoofer. Either add or subtract delay based on this offset distance to achieve proper time alignment.
These guides will help users achieve optimal audio quality by ensuring their active RCF speakers and subwoofers are perfectly phase aligned in every scenario.